QTY ADDED TO CATALOG NUMBER

Transcription

1 50B-KG/050B-KG

2 TLC --9 JB BF 0-8- MS 9-- TYPE OF VALVE AND MAIN FEATURES CVCL NOT FURNISHED BY CLA-VAL CO. DIST. CODE 050 CATALOG NO. 50B-KG (GLOBE) 050B-KG (ANGLE) PRESSURE RELIEF VALVE FACTORY MUTUAL APPROVED FOR VALVE SIZES ", ", " & 8" UL LISTED FOR VALVE SIZES ", ", " & 8" (GLOBE); ", ", " & 8" (ANGLE) DRAWING NO. DESIGN DRAW CHK'D APV'D SHEET OF OPTIONAL FEATURES REV T MGR CH HWE ADDED 8" GLOBE SIZE TO TITLE BLOCK (ECO 755) 5 P R S T CAD REVISION RECORD - DO NOT REVISE MANUALLY LTR DESCRIPTION BY DATE A-M SEE REVISION FILE N TLC * FORMERLY 00HKG ** UL LISTING CRL SPRING RANGES; 0-00 PSI &00-00 PSI ** FM APPROVED CRL & CRL0 SPRING RANGES; 0-00 PSI &00-00 PSI ITEM NO. INLET BASIC COMPONENTS *00-0 HYTROL (MAIN VALVE) **PRESSURE RELIEF CONTROL XA STRAINER & ORIFICE ASSEMBLY 8-0 CHECK VALVE 5 PRESSURE GAGE XA FLOW CLEAN STRAINER OPTIONAL FEATURE SUFFIX QTY ADDED TO CATALOG NUMBER NOTE: FACTORY MUTUAL APPROVED TO FM STANDARD PER PROJECT NO'S. 0YA.AH & 050 "THIS DRAWING IS THE PROPERTY OF CLA-VAL CO. AND SAME AND COPIES MADE THEREOF, IF ANY, SHALL BE RETURNED TO IT UPON DEMAND. DELIVERY AND DISCLOSURE HEREOF ARE SOLELY UPON CONDITION THAT THE SAME SHALL NOT BE USED, COPIED OR REPRODUCED, NOR SHALL THE SUBJECT HEREOF BE DISCLOSED IN ANY MANNER TO ANYONE FOR ANY PURPOSE, EXCEPT AS HEREIN AUTHORIZED, WITHOUT PRIOR WRITTEN APPROVAL OF CLA-VAL CO. THIS INFORMATION SHOWN HEREON IS PATENTED OR OTHERWISE PROTECTED, FULL TITLE AND COPYRIGHTS, IF ANY, IN AND TO THIS DRAWING AND/OR INFORMATION DELIVERED OR SUBMITTED ARE FULLY RESERVED CLA-VAL CO."

3 TYPE OF VALVE AND MAIN FEATURES CVCL DIST. CODE 050 CATALOG NO. 50B-KG (GLOBE) 050B-KG (ANGLE) PRESSURE RELIEF VALVE FACTORY MUTUAL APPROVED FOR VALVE SIZES ", ", " & 8" UL LISTED FOR VALVE SIZES ", ", " & 8" (GLOBE); ", ", " & 8" (ANGLE) SHEET OF DRAWING NO. DESIGN DRAW CHK'D APV'D 8098 JM JM JM REV. T I. DESCRIPTION OPERATING DATA THE CLA-VAL 50B-KG AND 050B-KG PRESSURE RELIEF VALVES ARE DIAPHRAGM ACTUATED PILOT CONTROLLED VALVES DESIGNED TO MAINTAIN A RELATIVELY CONSTANT PRESSURE AT THE MAIN VALVE INLET. THE PRESSURE RELIEF SET POINT IS EASILY ADJUSTED WITHIN THE RANGE SHOWN ON THE PRESSURE RELIEF CONTROL () NAMEPLATE. II. PRESSURE RELIEF FEATURE PRESSURE RELIEF CONTROL () IS A SPRING LOADED, NORMALLY CLOSED PILOT CONTROL THAT RESPONDS TO SLIGHT PRESSURE CHANGES AT MAIN VALVE INLET. AN INCREASE IN INLET PRESSURE TENDS TO OPEN CONTROL () AND A DECREASE IN INLET PRESSURE TENDS TO CLOSE CONTROL (). THIS CAUSES MAIN VALVE COVER PRESSURE TO VARY AND THE MAIN VALVE () MODULATES (OPENS AND CLOSES) MAINTAINING A RELATIVELY CONSTANT PRESSURE AT THE MAIN VALVE () INLET. A BRIEF EXPLANATION OF THE OPENING AND CLOSING CYCLE IS AS FOLLOWS: CAD REVISION RECORD - DO NOT REVISE MANUALLY LTR DESCRIPTION BY DATE SEE SHEET OPENING CYCLE: (a) INLET PRESSURE IS DIRECTED THROUGH THE SENSING LINE TO THE ACTUATING DIAPHRAGM OF CONTROL (). (b) WHEN FORCE CREATED BY INLET PRESSURE UNDER DIAPHRAGM OF CONTROL () EXCEEDS THE FORCE OF THE SPRING IN CONTROL (), CONTROL () OPENS. (c) WHEN FLOW OUT OF MAIN VALVE COVER CHAMBER THROUGH CONTROL () EXCEEDS FLOW INTO THE MAIN VALVE COVER CHAMBER THROUGH STRAINER & ORIFICE (), PRESSURE IN THE MAIN VALVE COVER CHAMBER IS REDUCED. (d) WITH REDUCED PRESSURE IN THE MAIN VALVE COVER CHAMBER AND FULL INLET PRESSURE UNDER THE MAIN VALVE DISC, THE MAIN VALVE () OPENS. CLOSING CYCLE: (a) WHEN FORCE CREATED BY INLET PRESSURE UNDER DIAPHRAGM OF CONTROL () IS LESS THAN THE FORCE OF THE SPRING IN CONTROL (), CONTROL () CLOSES. (b) AS A RESULT, THE MAIN VALVE () COVER CHAMBER IS SLOWLY PRESSURIZED THROUGH THE STRAINER & ORIFICE () AND THE MAIN VALVE () CLOSES. III. PRESSURE RELIEF CONTROL () ADJUSTMENT (a) REMOVE PLASTIC CAP (TURN COUNTERCLOCKWISE). (b) LOOSEN ADJUSTING SCREW JAM NUT (TURN COUNTERCLOCKWISE). (c) TURN ADJUSTING SCREW CLOCKWISE TO INCREASE PRESSURE RELIEF SET POINT (OR COUNTERCLOCKWISE TO DECREASE SET POINT). (d) RE-TIGHTEN JAM NUT. (e) REPLACE PLASTIC CAP. IV. CHECK VALVE FEATURE: WHEN COVER PRESSURE IS HIGHER THAN INLET PRESSURE, CHECK VALVE () CLOSES. THIS MAINTAINS THE HIGHER PRESSURE IN THE MAIN VALVE () COVER CHAMBER KEEPING THE MAIN VALVE () CLOSED. NOTES:. PERIODIC CLEANING OF STRAINER SCREEN IN ITEM () & () IS RECOMMENDED.. RELIEF VALVE () SHOULD BE TESTED AFTER INSTALLATION TO VERIFY SETTING. "THIS DRAWING IS THE PROPERTY OF CLA-VAL CO. AND SAME AND COPIES MADE THEREOF, IF ANY, SHALL BE RETURNED TO IT UPON DEMAND. DELIVERY AND DISCLOSURE HEREOF ARE SOLELY UPON CONDITION THAT THE SAME SHALL NOT BE USED, COPIED OR REPRODUCED, NOR SHALL THE SUBJECT HEREOF BE DISCLOSED IN ANY MANNER TO ANYONE FOR ANY PURPOSE, EXCEPT AS HEREIN AUTHORIZED, WITHOUT PRIOR WRITTEN APPROVAL OF CLA-VAL CO. THIS INFORMATION SHOWN HEREON IS PATENTED OR OTHERWISE PROTECTED, FULL TITLE AND COPYRIGHTS, IF ANY, IN AND TO THIS DRAWING AND/OR INFORMATION DELIVERED OR SUBMITTED ARE FULLY RESERVED CLA-VAL CO."

4 MODEL The Cla-Val Model 50B-KG Globe /050B-KG Angle Pressure Relief Valve is designed specifically to automatically relieve excess pressure in fire protection pumping systems. Pilot controlled, it maintains constant system pressure at the pump discharge within very close limits as demands change. The Fire Pump Pressure Relief Valve shall modulate to relieve excess pressure in a fire protection system. It shall maintain constant pressure in the system regardless of demand changes. It shall be pilot controlled and back pressure shall not affect its set point. It shall be actuated by line pressure through a pilot control system and open fast in order to maintain steady system pressure as system demand decreases. It shall close gradually to control surges and shall re-seat drip-tight within 5% of its pressure setting. INSTALLATION / OPERATION / MAINTENANCE 50B-KG/050B-KG Pressure Relief Valve INSTALLATION. Allow sufficient room around the valve assembly to make adjustments and for servicing.. lt is recommended that gate or block valves be installed to facilitate isolating valve for preventative maintenance. When used as a surge control or pressure relief valve where valve outlet discharge is to atmosphere, then a gate or block valve is needed at valve inlet. When used as a back pressure sustaining control valve where valve outlet is connected to pressurized downstream system, then gate or block valves are needed at valve inlet and outlet. NOTE: BEFORE THE VALVE IS INSTALLED, PIPE LINES SHOULD BE FLUSHED OF ALL FOREIGN MATTER.. Place valve in line with flow through valve in direction indicated on inlet plate or flow arrows. Check all fittings and hardware for proper makeup and verify that no apparent damage is evident.. Cla-Val Valves operate with maximum efficiency when mounted in horizontal piping with the cover UP; however, other positions are acceptable. Due to size and weight of cover and internal components on six inch and larger valves, installation with the cover up is advisable. This makes periodic inspection of internal parts readily accessible. 5. Caution must be taken in the installation of this valve to insure that galvanic and/or electrolytic action does not take place. The proper use of dielectric fittings and gaskets are required in all systems using dissimilar metals. MAINTENANCE. Cla-Val Valves and Controls require no lubrication or packing and a minimum of maintenance. However, a periodic inspection schedule should be established to determine how the fluid is affecting the efficiency of the valve assembly. Minimum of once per year.. Repair and maintenance procedures of the Hytrol Main Valve and control components are included in a more detailed Tech Manual. It can be downloaded from our web site ( or obtained by contacting a Cla-Val Regional Sales Office.. When ordering parts always refer to the catalog number and stock number on the valve nameplate. SYMPTOM PROBABLE CAUSE REMEDY Main valve won t open Water is coming out of vent hole in cover Inlet pressure is below setting of pilot valve. Pilot valve is stuck closed: Mineral deposit or foreign material between disc retainer and stem guide. Pilot valve diaphragm is ruptured or diaphragm nut is loose. Reset pilot valve. If change is from tampering, seal cap with wire and lead seal. Disassemble control and clean. Disassemble and replace diaphragm. Tighten nut. OPERATION AND START-UP. Prior to pressurizing the valve assembly make sure the necessary gauges to measure pressure in the system, are installed as required by the system engineer. CAUTION: During start-up and test a large volume of water may be discharged downstream. Check that the downstream venting is adequate to prevent damage to personnel and equipment. All pilot adjustments should be made slowly in small increments. If the main valve closes too rapidly it may cause surging in upstream piping.. Remove cap from CRL-0 then loosen adjusting screw counterclockwise. This will allow the valve to open at low pressure relieving the full flow of the fire pump. Bleed all air from the valve at this time by carefully loosening the cover plug and tube fittings at the high points. Slowly turn the adjusting screw clockwise on the CRL-0 while watching the gauge between the valve and the pump until you reach the desired set-point. Tighten the jam nut on the CRL-0 and replace the cap. DO NOT USE THE GAUGE PROVIDED ON THE VALVE TO SET THE VALVE. IT IS ONLY THERE TO INDICATE PRESSURE IN THE COVER. Main valve is stuck closed Main valve won t close Main valve stuck open Valve leaks continuously Mineral build-up on stem. Stem damaged. Inlet pressure is above setting of pilot valve. Clogged orifice or strainer. Pilot valve is stuck open: Foreign material or mineral deposit under disc retainer or diaphragm assembly. Foreign material or mineral deposit between seat and disc assembly. Main valve diaphragm worn out. Pilot valve disc worn out. Main valve disc worn or damaged. Set point too close to inlet pressure. Disassemble main valve, clean parts and/or replace damaged part. Reset pilot valve Disassemble and clean. Disassemble and clean. Disassemble and clean. Disassemble and replace. Disassemble and replace. Reset pilot valve.

5 50B-KG SCHEMATIC. CRL-0 PILOT VALVE SCREW, ADJUSTING CAP GUIDE, SPRING CRL NUT, HEX JAM SPRING, CRL BALL COVER, CRL 5 GUIDE, SPRING CRL O-RING O-RING NUT, STEM, CRL BELLEVILLE WASHER SCREW, FIL HD 0- STEM ASSEMBLY, CRL-0 WASHER, DIAPHRAGM INLET OUTLET BODY, CRL-0 DIAPHRAGM DIAPHRAGM WASHER (LOWER) BASIC COMPONENTS 00-0 Hytrol (Main Valve) CRL-0 Pressure Relief Pilot Valve XA Strainer & Orifice Strainer 8-0 Check Valve 5 Pressure Gauge XA Flow Clean Strainer. HYTROL MAIN VALVE X /- NPT OR X / - NPT PIPE PLUG GUIDE STEM, CRL-0 O-RING CRL-0 (00-00 psi) configuration shown CRL-0 adjustment range (psi) Spring Color psi change per turn* 0-75 Red 8.5 Cover Bolt " and Smaller COVER FLAT WASHER SPRING PIPE PLUG PIPE PLUG COVER BEARING HEX NUT 8" and Larger FLAT WASHER 0-05 Silver Green Yellow 8 * Approximate. Use gauge at valve inlet to set STEM NUT DIAPHRAGM WASHER CRL-0 Pilot Valve XA Strainer & Orifice Strainer *DIAPHRAGM.. DISC RETAINER *SPACER WASHERS *DISC 8-0 Check Valve DISC GUIDE STEM. SEAT Seat Screw 8" and Larger Pressure Gauge SEAT O-RING STUD 8" and Larger 5.. XA Flow Clean Strainer BODY PIPE PLUG (Globe or Angle) *Repair Parts For a more detailed Tech Manual, go to or contact a Cla-Val Regional Sales Office. CLA-VAL P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. N-50BKG/050BKG_CRL-0 (R-0/0)

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8 INSTALLATION / OPERATION / MAINTENANCE MODEL 00-0 Hytrol Valve Description The CIa-VaI Model 00-0 Hytrol Valve is a main valve for CIa- VaI Automatic Control Valves. It is a hydraulically operated, diaphragm-actuated, globe or angle pattern valve. This valve consists of three major components; body, diaphragm assembly, and cover. The diaphragm assembly is the only moving part. The diaphragm assembly uses a diaphragm of nylon fabric bonded with synthetic rubber. A synthetic rubber disc, contained on three and one half sides by a disc retainer and disc guide, forms a seal with the valve seat when pressure is applied above the diaphragm. The diaphragm assembly forms a sealed chamber in the upper portion of the valve, separating operating pressure from line pressure. Installation. Before valve is installed, pipe lines should be flushed of all chips, scale and foreign matter.. It is recommended that either gate or block valves be installed on both ends of the 00-0 Hytrol Valve to facilitate isoiating the valve for preventive maintenance and repairs.. Place the valve in the line with flow through the valve in the direction indicated on the inlet nameplate. (See Flow Direction Section). Note: Valve can be installed in the vertical or horizontal position.. Allow sufficient room around valve to make adjustments and for disassembly. 5. CIa-VaI 00-0 Hytrol Valves operate with maximum efficiency when mounted in horizontal piping with the cover UP, however, other positions are acceptable. Due to size and weight of the cover and internal components of 8 inch and larger valves, installation with the cover UP is advisable. This makes internal parts readily accessible for periodic inspection.. Caution must be taken in the installation of this valve to insure that galvanic and/or electrolytic action does not take place. The proper use of dielectric fittings and gaskets are required in all systems using dissimilar metals. 7. If a pilot control system is installed on the 00-0 Hytrol Valve, use care to prevent damage. If it is necessary to remove fittings or components, be sure they are kept clean and replaced exactly as they were. 8. After the valve is installed and the system is first pressurized, vent air from the cover chamber and pilot system tubing by loosening fittings at all high points. Principles of Operation Three Way Pilot Control Three Way Pilot Control Restriction Modulating Control Tight Closing Operation When pressure from the valve inlet (or an equivalent independent operating pressure) is applied to the diaphragm chamber the valve closes drip-tight. Full Open Operation When pressure in diaphragm chamber is relieved to a zone of lower pressure (usually atmosphere) the line pressure (5 psi Min.) at the valve inlet opens the valve. Modulating Action Valve modulates when diaphragm pressure is held at an intermediate point between inlet and discharge pressure. With the use of a Cla-Val. "modulating control," which reacts to line pressure changes, the pressure above the diaphragm is varied, allowing the valve to throttle and compensate for the change.

9 Flow Direction The flow through the 00-0 Hytrol Valve can be in one of two directions. When flow is up-and-over the seat, it is in normal flow and the valve will fail in the open position. When flow is overthe seat-and down, it is in reverse flow and the valve will fail in the closed position. There are no permanent flow arrow markings. The valve must be installed according to nameplate data. BRIDGEWALL INDlCATOR (cast into side of valve body) Normal Flow Troubleshooting Reverse Flow The following troubleshooting information deals strictly with the Model 00-0 Hytrol Valve. This assumes that all other components of the pilot control system have been checked out and are in proper working condition. (See appropriate sections in Technical Manual for complete valve). Recommended Tools. Three pressure gauges with ranges suitable to the installation to be put at Hytrol inlet, outlet and cover connections.. Cla-Val Model X0 Valve Position Indicator. This provides visual indication of valve position without disassembly of valve.. Other items are: suitable hand tools such as screwdrivers, wrenches, etc. soft jawed (brass or aluminum) vise, 00 grit wet or dry sandpaper and water for cleaning. All trouble shooting is possible without removing the valve from the line or removing the cover. It is highly recommended to permanently install a Model X0 Valve Position Indicator and three gauges in unused Hytrol inlet, outlet and cover connections. SYMPTOM PROBABLE CAUSE REMEDY Fails to Close Closed isolation valves in control system, or in main line. Lack of cover chamber pressure. Open Isolation valves. Check upstream pressure, pilot system, strainer, tubing, valves, or needle valves for obstruction. Fails to Open Diaphragm damaged. (See Diaphragm Check.) Diaphragm assembly inoperative. Corrosion or excessive scale build up on valve stem. (See Freedom of Movement Check) Mechanical obstruction. Object lodged in valve. (See Freedom of Movement Check) Worn disc. (See Tight Sealing Check) Badly scored seat. (See Tight Sealing Check) Closed upstream and/or downstream isolation valves in main line. Insufficient line pressure. Replace diaphragm. Clean and polish stem. Inspect and replace any damaged or badly eroded part. Remove obstruction. Replace disc. Replace seat. Open isolation valves. Check upstream pressure. (Minimum 5 psi flowing line pressure differential.) Diaphragm assembly inoperative. Corrosion or excessive buildup on valve stem. (See Freedom of Movement Check) Diaphragm damaged. (For valves in "reverse flow" only) Clean and polish stem. Inspect and replace any damaged or badly eroded part. Replace diaphragm. After checking out probable causes and remedies, the following three checks can be used to diagnose the nature of the problem before maintenance is started. They must be done in the order shown. Three Checks The 00-0 Hytrol Valve has only one moving part (the diaphragm and disc assembly). So, there are only three major types of problems to be considered. First: Valve is stuck - that is, the diaphragm assembly is not free to move through a full stroke either from open to close or vice versa. Second: Valve is free to move and can t close because of a worn out diaphragm. Third: Valve leaks even though it is free to move and the diaphragm isn t leaking. CAUTION: Care should be taken when doing the troubleshooting checks on the 00-0 Hytrol Valve. These checks do require the valve to open fully. This will either allow a high flow rate through the valve, or the downstream pressure will quickly increase to the inlet pressure. In some cases, this can be very harmful. Where this is the case, and there are no block valves in the system to protect the downstream piping, it should be realized that the valve cannot be serviced under pressure. Steps should be taken to remedy this situation before proceeding any further.

10 Diaphragm Check (# ). Shut off pressure to the Hytrol Valve by slowly closing upstream and downstream isolation valves. SEE CAUTION.. Disconnect or close all pilot control lines to the valve cover and leave only one fitting in highest point of cover open to atmosphere..with the cover vented to atmosphere, slowly open upstream isolation valve to allow some pressure into the Hytrol Valve body. Observe the open cover tapping for signs of continuous flow. It is not necessary to fully open isolating valve. Volume in cover chamber capacity chart will be displaced as valve moves to open position. Allow sufficient time for diaphragm assembly to shift positions. If there is no continuous flow, you can be quite certain the diaphragm is sound and the diaphragm assembly is tight. If the fluid appears to flow continuously this is a good reason to believe the diaphragm is either damaged or it is loose on the stem. In either case, this is sufficient cause to remove the valve cover and investigate the leakage. (See Maintenance Section for procedure.) COVER CHAMBER CAPACITY (Liquid Volume displaced when valve opens) Valve size (inches) Displacement Gallons Liters / / / Freedom of Movement Check (#). Determining the Hytrol Valve s freedom of movement can be done by one of two methods. 5. For most valves it can be done after completing Diaphragm Check (Steps,, and ). SEE CAUTION. At the end of step the valve should be fully open.. If the valve has a Cla-Val X0 Position Indicator, observe the indicator to see that the valve opens wide. Mark the point of maximum opening. 7. Re-connect enough of the control system to permit the application of inlet pressure to the cover. Open pilot system cock so pressure flows from the inlet into the cover. 8. While pressure is building up in the cover, the valve should close smoothly. There is a hesitation in every Hytrol Valve closure, which can be mistaken for a mechanical bind. The stem will appear to stop moving very briefly before going to the closed position. This slight pause is caused by the diaphragm flexing at a particular point in the valve s travel and is not caused by a mechanical bind. 9. When closed, a mark should be made on the X0 Valve position indicator corresponding to the closed position. The distance between the two marks should be approximately the stem travel shown in chart. STEM TRAVEL (Fully Open to Fully Closed) Valve Size (inches) Travel (inches) Inches MM Inches MM / 0. 0 / / If the stroke is different than that shown in stem travel chart this is a good reason to believe something is mechanically restricting the stroke of the valve at one end of its travel. If the flow does not stop through the valve when in the indicated closed position, the obstruction probably is between the disc and the seat. If the flow does stop, then the obstruction is more likely in the cover. In either case, the cover must be removed, and the obstruction located and removed. The stem should also be checked for scale buildup. (See Maintenance, section for procedure.). For valves and smaller, the Hytrol Valve s freedom of movement check can also be done after all pressure is removed from the valve. SEE CAUTION. After closing inlet and outlet isolation valves and bleeding pressure from the valve, check that the cover chamber and the body are temporarily vented to atmosphere. Insert fabricated tool into threaded hole in top of valve stem, and lift the diaphragm assembly manually. Note any roughness. The diaphragm assembly should move smoothly throughout entire valve stroke. The tool is fabricated from rod that is threaded on one end to fit valve stem and has a T bar handle of some kind on the other end for easy gripping. (See chart in Step of Disassembly Section.). Place marks on this diaphragm assembly lifting tool when the valve is closed and when manually positioned open. The distance between the two marks should be approximately the stem travel shown in stem travel chart. If the stroke is different than that shown, there is a good reason to believe something is mechanically restricting the stroke of the valve. The cover must be removed, and the obstruction located and removed. The stem should also be checked for scale build-up. (See Maintenance Section for procedure.) Tight Sealing Check (#). Test for seat leakage after completing checks # & # (Steps to ). SEE CAUTION. Close the isolation valve downstream of the Hytrol Valve. Apply inlet pressure to the cover of the valve, wait until it closes. Install a pressure gauge between the two closed valves using one of the two ports in the outlet side of the Hytrol. Watch the pressure gauge. If the pressure begins to climb, then either the downstream isolation valve is permitting pressure to creep back, or the Hytrol is allowing pressure to go through it. Usually the pressure at the Hytrol inlet will be higher than on the isolation valve discharge, so if the pressure goes up to the inlet pressure, you can be sure the Hytrol is leaking. Install another gauge downstream of isolating valve. If the pressure between the valves only goes up to the pressure on the isolation valve discharge, the Hytrol Valve is holding tight, and it was just the isolation valve leaking.

11 Maintenance Preventative Maintenance The Cla-Val Co. Model 00-0 Hytrol Valve requires no lubrication or packing and a minimum of maintenance. However, a periodic inspection schedule should be established to determine how the operating conditions of the system are affecting the valve. The effect of these actions must be determined by inspection. Disassembly Inspection or maintenance can be accomplished without removing the valve from the line. Repair kits with new diaphragm and disc are recommended to be on hand before work begins. WARNING: Maintenance personnel can be injured and equipment damaged if disassembly is attempted with pressure in the valve. SEE CAUTION.. Close upstream and downstream isolation valves and independent operating pressure when used to shut off all pressure to the valve.. Loosen tube fittings in the pilot system to remove pressure from valve body and cover chamber. After pressure has been released from the valve, use care to remove the controls and tubing. Note and sketch position of tubing and controls for re-assembly. The schematic in front of the Technical Manual can be used as a guide when reassembling pilot system.. Remove cover nuts and remove cover. If the valve has been in service for any length of time, chances are the cover will have to be loosened by driving upward along the edge of the cover with a dull cold chisel. VALVE STEM THREAD SIZE Valve Size Thread Size (UNF Internal) /" /" 0 " " / 8 " " /8 " / 0 0 /- " /- 0 /- /- 5. The next item to remove is the stem nut. Examine the stem threads above the nut for signs of mineral deposits or corrosion. If the threads are not clean, use a wire brush to remove as much of the residue as possible. Attach a good fitting wrench to the nut and give it a sharp rap rather than a steady pull. Usually several blows are sufficient to loosen the nut for further removal. On the smaller valves, the entire diaphragm assembly can be held by the stem in a vise equipped with soft brass jaws before removing the stem nut. The use of a pipe wrench or a vise without soft brass jaws scars the fine finish on the stem. No amount of careful dressing can restore the stem to its original condition. Damage to the finish of the stem can cause the stem to bind in the bearings and the valve will not open or close.. After the stem nut has been removed, the diaphragm assembly breaks down into its component parts. Removal of the disc from the disc retainer can be a problem if the valve has been in service for a long time. Using two screwdrivers inserted along the outside edge of the disc usually will accomplish its removal. Care should be taken to preserve the spacer washers in water, particularly if no new ones are available for re-assembly. 7. The only part left in the valve body is the seat which ordinarily does not require removal. Careful cleaning and polishing of inside and outside surfaces with 00 wet/dry sandpaper will usually restore the seat s sharp edge. If, however, it is badly worn and replacement is necessary, it can be easily removed. On and smaller valves block and tackle or a power hoist can be used to lift valve cover by inserting proper size eye bolt in place of the center cover plug. on 8 and larger valves there are holes (5/8 size) where jacking screws and/or eye bolts may be inserted for lifting purposes. Pull cover straight up to keep from damaging the integral seat bearing and stem. COVER CENTER PLUG SIZE Valve Size Thread Size (NPT) /" /" /" " " /" " " /" 8" 0" " " /" " /" " " 0 & " " 0 &. Remove the diaphragm and disc assembly from the valve body. With smaller valves this can be accomplished by hand by pulling straight up on the stem so as not to damage the seat bearing. On large valves, an eye bolt of proper size can be installed in the stem and the diaphragm assembly can be then lifted with a block and tackle or power hoist. Take care not to damage the stem or bearings. The valve won't work if these are damaged. Seats in valve sizes / through are threaded into the valve body. They can be removed with accessory X09 Seat Removing Tool available from the factory. On 8 and larger valves, the seat is held in place by flat head machine screws. Use a tight-fitting, long shank screwdriver to prevent damage to seat screws. If upon removal of the screws the seat cannot be lifted out, it will be necessary to use a piece of angle or channel iron with a hole drilled in the center. Place it across the body so a long stud can be inserted through the center hole in the seat and the hole in the angle iron. By tightening the nut a uniform upward force is exerted on the seat for removal. NOTE: Do not lift up on the end of the angle iron as this may force the integral bearing out of alignment, causing the stem to bind. DO NOT LIFT VALVE SEAT VALVE BODY NUT ANGLE OR CHANNEL IRON LONG STUD OR BOLT NUT OR BOLT HEAD

12 Lime Deposits One of the easiest ways to remove lime deposits from the valve stem or other metal parts is to dip them in a 5-percent muriatic acid solution just long enough for the deposit to dissolve. This will remove most of the common types of deposits. CAUTlON: USE EXTREME CARE WHEN HANDLING ACID. Rinse parts in water before handling. If the deposit is not removed by acid, then a fine grit (00) wet or dry sandpaper can be used with water. Inspection of Parts After the valve has been disassembled, each part should be examined carefully for signs of wear, corrosion, or any other abnormal condition. Usually, it is a good idea to replace the rubber parts (diaphragm and disc) unless they are free of signs of wear. These are available in a repair kit. Any other parts which appear doubtful should be replaced. WHEN ORDERlNG PARTS, BE SURE TO GIVE COMPLETE NAMEPLATE DATA, ITEM NUMBER AND DESCRlPTlON. NOTE: If a new disc isn t available, the existing disc can be turned over, exposing the unused surface for contact with the seat. The disc should be replaced as soon as practical. Reassembly. Reassembly is the reverse of the disassembly procedure. If a new disc has been installed, it may require a different number of spacer washers to obtain the right amount of grip on the disc. When the diaphragm assembly has been tightened to a point where the diaphragm cannot be twisted, the disc should be compressed very slightly by the disc guide. Excessive compression should be avoided. Use just enough spacer washers to hold the disc firmly without noticeable compression.. MAKE SURE THE STEM NUT IS VERY TIGHT. Attach a good fitting wrench to the nut and give it a sharp rap rather than a steady pull. Usually several blows are sufficient to tighten the stem nut for final tightening. Failure to do so could allow the diaphragm to pull loose and tear when subjected to pressure.. Carefully install the diaphragm assembly by lowering the stem through the seat bearing. Take care not to damage the stem or bearing. Line up the diaphragm holes with the stud or bolt holes on the body. on larger valves with studs, it may be necessary to hold the diaphragm assembly up part way while putting the diaphragm over the studs.. Put spring in place and replace cover. Make sure diaphragm is Iying smooth under the cover. 5. Tighten cover nuts firmly using a cross-over pattern until all nuts are tight.. Test Hytrol Valve before re-installing pilot valve system. Test Procedure After Valve Assembly There are a few simple tests which can be made in the field to make sure the Hytrol Valve has been assembled properly. Do these before installing pilot system and returning valve to service. These are similar to the three troubleshooting tests.. Check the diaphragm assembly for freedom of movement after all pressure is removed from the valve. SEE CAUTlON. Insert fabricated tool into threaded hole in top of valve stem, and lift the diaphragm assembly manually. Note any roughness, sticking or grabbing. The diaphragm assembly should move smoothly throughout entire valve stroke. The tool is fabricated from rod that is threaded on one end to fit valve stem (See chart in Step of Disassembly section.) and has a T Bar handle of some kind on the other end for easy gripping. Place marks on this diaphragm assembly lifting tool when the valve is closed and when manually positioned open. The distance between the two marks should be approximately the stem travel shown in stem travel chart. (See Freedom of Movement Check section.) If the stroke is different than that shown, there is a good reason to believe something is mechanically restricting the stroke of the valve. The cover must be removed, the obstruction located and removed. (See Maintenance Section for procedure.) Due to the weight of the diaphragm assembly this procedure is not possible on valves 8 and larger. on these valves, the same determination can be made by carefully introducing a low pressure-less than five psi) into the valve body with the cover vented. SEE CAUTION. Looking in cover center hole see the diaphragm assembly lift easily without hesitation, and then settle back easily when the pressure is removed.. To check the valve for drip-tight closure, a line should be connected from the inlet to the cover, and pressure applied at the inlet of the valve. If properly assembled, the valve should hold tight with as low as ten PSI at the inlet. See Tight Sealing Check section.). With the line connected from the inlet to the cover, apply full working pressure to the inlet. Check all around the cover for any leaks. Re-tighten cover nuts if necessary to stop leaks past the diaphragm.. Remove pressure, then re-install the pilot system and tubing exactly as it was prior to removal. Bleed air from all high points. 5. Follow steps under Start-Up and Adjustment Section in Technical Manual for returning complete valve back to service. 5

13 INLET OUTLET TOP VIEW GLOBE PATTERN PARTS LIST Item Description. Pipe Plug. Drive Screws (for nameplate). Hex Nut (8 and larger). Stud (8 and larger) 5. Cover Bearing. Cover 7. Stem Nut 8. Diaphragm Washer 9. Diaphragm 0. Spacer Washers. Disc Guide. Disc Retainer. Disc. Stem 5. Seat. Body 7. Spring. Flat Head Screws (8 and larger). Seat O-Ring. Hex head Bolt ( / thru ) 5. Nameplate. Upper Spring Washer (Epoxy coated valves only) 7. Lower Spring Washer (Epoxy coated valves only) 8. Cover Bearing Housing ( only) 9. Cover O-Ring ( only) 0. Hex Bolt ( only). Pipe Cap ( only) 7 5 INLET ANGLE PATTERN 9 OUTLET /" - " SEAT DETAIL 8" - " SEAT DETAIL " COVER DETAIL

14 Description 00-0 Hytrol Valve The CIa-VaI Model 00-0 Hytrol Valve is a main valve for CIa-VaI Automatic Control Valves. It is a hydraulically operated, diaphragm-actuated, globe or angle pattern valve. This valve consists of three major components; body, diaphragm assembly, and cover. The diaphragm assembly is the only moving part. The diaphragm assembly uses a diaphragm of nylon fabric bonded with synthetic rubber. A synthetic rubber disc, contained on three and one half sides by a disc retainer and disc guide, forms a seal with the valve seat when pressure is applied above the diaphragm. The diaphragm assembly forms a sealed chamber in the upper portion of the valve, separating operating pressure from line pressure. INSTALLATION / OPERATION / MAIN- MODEL 00- Hytrol Valve Service Data Description Series Hytrol Valve The CIa-VaI Model 00-0 Hytrol Valve (00 Series main valve) have only one part -the body- that is different from standard 00 Series Cla-Val main valve parts. The remaining parts of the 00 series main valve are standard Cla-Val main valve parts. All service and maintenance information for the standard 00 Series main valves also apply to the 00 series main valves. The most important thing to remember when ordering main valve repair kits and replacement parts, except for the body, all other parts are going to be for a smaller size main valve. Cla- Val identifies main valve parts with the flange size of the standard 00 Series main valve. Refer to the "Main Valve Sizes chart below. HYTROL SIZE Stem Travel Cover Capacity Displacement Valve Stem Thread UNF-Internal Cover Center Plug NPT HYTROL Service Data Cover Nut or Bolt Cover Lifting Thread Socket Qty Holes Thread Socket ft. Lbs. in. Lbs. Thread (Bolt) UNC Cover Plug Cover Torque Stem Nut** Socket (Long) Stem Nut Torque (ft. Lbs.) inches mm inches mm inches mm Gallons Liters Lubed DRY " /" /" - 0 (B) 7/" 8 8 /8" - /" /" 5/" - 8 (B) /" /" -0 0 /" /" 5/" - 8 (B) /" /" -0 0 " /" /8" - (B) 9/" 8 /8" 7/" /" - 0 /" 0 5 /" /" 7/" - (B) 5/8" 8 /" 9/" 0 5/8" - 8 5/" 0 " 80 " / - 8 /" /" - (B) /" 8 /" 9/" 0 5/8" - 8 5/" 0 " 00 " / - 8 /" /" - 0 (B) /8" 8 /" 5/8" 0 /" - /" 0 0 " 50 8" /8 - /" /" - 0 (B) /8" /" 5/8" 0 7/8" - 5/" " 00 0" /8 - " /" - 0 /" 5/8" - " /" 0 /8" - /" " 50 " /8 - " 7/8" - 9 7/" 0 /" - 0 " /" 0 /" - 7/8" 5 75 " 00 " /8 - /" /8" - 7 /" 0 /" - 0 " /" 90 /" - /" " /8 - /" /" - 7 " 0 " - 8 " /" 55 /" - /" 80 0 " 00 0", " / - 0 " /" - 7 " 0 " - 8 " /" 55 " - " " / - /" /8" - /8" " - 8 " /" 70 /" - /" 90 N/R " 00 0" / - * /" /" - /8" /8"- 7 " /" 800 " - Special 50 N/R * Adapter p/n 590E inside /" - 8" Grade 5 Bolts "Heavy" Grade Nuts Tighten cover nuts in a "star" cross-over pattern ** Must Use ONLY Cla-Val Supplied part

15 BOLT/NUT TORQUING PROCEDURES ON VALVE COVERS BOLTS 5 BOLTS BOLTS 7 KO Anti-Cavitation Trim Option 00-0 Hytrol Main Valve Assembly COVER Cover Bolt " and Smaller SPRING PIPE PLUG COVER BEARING STEM NUT HEX NUT 8" and Larger PIPE PLUG DIAPHRAGM WASHER 0 8 BOLTS BOLTS Follow this procedure when reassembling MAIN Valve: BOLTS KO DISC GUIDE KO SEAT *DIAPHRAGM DISC RETAINER *SPACER WASHERS *DISC DISC GUIDE STEM. Tightens bolts/nuts in a Star or Cross-Over pattern following the numbers shown above to insure that cover seats evenly on the diaphragm material and body. SEAT Seat Screw 8" and Larger. Torque the bolt/nuts in three stages with a "Star" or "Cross-Over" pattern for each stage: SEAT O-RING STUD 8" and Larger A. To approximately 0% of final torque. B. To approximately 75% of final torque. C. To final required torque. BODY (Globe or Angle) PIPE PLUG. Valves that are to be tested to 75 PSI or higher should be retorqued after hours. *Repair Parts P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com CLA-VAL Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. N-00-0 (R-08/0

16 UNDERWRITERS LABORATORIES OF CANADA MODEL 50B-KG Globe 050B-KG Angle Listed/Approved Fire Protection Pressure Relief Valve U L C LABLLED BY U.L. Listed / U.L.C. Listed Factory Mutual Approved Fast Opening to Maintain Steady Line Pressure Accommodates Wide Range of Flow Rates Closes Gradually for Surge-Free Operation Adjustable Pressure Settings, Not Affected by Pressure At Valve Discharge The Cla-Val Model 50B-KG Globe / 050B-KG Angle Pressure Relief Valve is designed specifically to automatically relieve excess pressure in fire protection pumping systems. Pilot controlled, it maintains constant system pressure at the pump discharge within very close limits as demands change. The 50B-KG and 050B-KG can be supplied with optional internal and external epoxy coating of the main valve wetted surfaces. 050B-KG (Angle) U.L. Listed...Sizes " thru 8" F.M. Approved...Sizes " thru 8" U.L.C. Listed...Sizes thru 0 Typical Application Fire Pump KOModel 050B-KG Pressure Relief Valve (Angle Pattern) Operation Sequence At pump start, Cla-Val Relief Valve modulates to relieve excess pump capacity, maintaining positive system pressure at the pump discharge. When fire demand slows or ceases, Cla-Val Model 50B-KG opens, diverting entire pump output to discharge, allowing fire pump to be stopped without causing surging in the lines. To Fire Protection System "Fluid Control at It's Best" Check Valve (Please note that if the Model 50B-KG is to be used on a continuous duty basis to maintain fire-system pressure, suitable back pressure must be provided on the valve to prevent cavitation damage. Consult the factory for details.) Optional UL Listed Materials for Seawater and Severe Service Applications: Nickel Aluminum Bronze (NAB) - ASTM B8 Alloy C95800 Monel - QQ-N-88 Comp B - ASTM A9 Grade M0H Cast Steel - ASTM A Grade WCB Stainless Steel - ASTM A7 Grades CFM and CFM8 Super Austenitic Stainless Steel - ASTM A5 Grade CKMCuN (SMO 5) Super Duplex Stainless Steel - ASTM A890 Grade 5A (CEMN)

17 Specifications Sizes End Details Pressure Ratings Standard Materials Adjustment Range Optional Purchase Specifications Specifications: Seawater Service Option Sizes Globe: " - 0 flanged Angle: " - 0" flanged 50 and 00 ANSI B. class - 75 psi Max. class - 00 psi Max Water, to 80 F Max. Main Valve Body & Cover Ductile Iron ASTM A5 Grade 5-5- Standard Main Valve Trim: Bronze Seat, Teflon Coated Stainless Steel Stem, Dura-Kleen Stem Standard Pilot Control System: Cast Bronze with Stainless Steel trim Available in the following relief pressure ranges: 0-00 psi (50 Class) psi (00 Class) Protective epoxy resin coating of wetted surfaces of main valve cast iron components (UL listed HNFX EX855) The Fire Pump Pressure Relief Valve shall modulate to relieve excess pressure in a fire protection system. It shall maintain constant pressure in the system regardless of demand changes. It shall be pilot controlled and back pressure shall not affect its set point. It shall be actuated by line pressure through a pilot control system and open fast in order to maintain steady system pressure as system demand decreases. It shall close gradually to control surges and shall re-seat drip-tight within 5% of its pressure setting. The main valve shall be of the hydraulically-operated, pilot-controlled, diaphragm-type, globe or angle valve. It shall have a single, removable, teflon-coated seat, a grooved stem guided at both ends, and a resilient disc with a rectangular cross section, being contained on / sides. No external packing glands shall be permitted and the diaphragm shall not be used as a seating surface. The pilot control shall be a direct-acting, adjustable, spring-loaded, diaphragm-type valve designed for modulating service to permit flow when controlling pressure exceeds spring setting. This valve shall be UL Listed and Factory Mutual approved. It shall be the Model 50B-KG (globe) or Model 050B- KG (angle) Pressure Relief Valve as manufactured by Cla-Val Newport Beach, California. *Special Note: The Model 50B-KG Pressure Relief Valve is available with 00# ANSI inlet flange and 50# ANSI outlet flange. This valve is used on higher pressure systems where 00# flange connections are required, and allows for adapting of a discharge cone (generally supplied with 50# flange) to accommodate "atmospheric break" at relief valve discharge. This relief valve, with 00# / 50# flanges is available on special order, and is UNDERWRITERS LABORATORIES LISTED AND FACTORY MUTUAL APPROVED. Globe: " - 8" flanged Angle: " - 8" flanged Consult factory for flange ratings. See page for seawater service materials options. Dimensions Model 50B-KG Globe A C D Model 050B-KG Angle We recommend providing adequate space around valve for maintenance work. Valve Capacity Valve Sizes in Inches: " /" " " " 8" 0" NFPA 0 Maximum Recommended GPM B G H = U.L., F.M. and ULC sizes = ULC sizes only Valve Size (inches) -/ 8 0 Threaded Ends A 50 Flanged Flanged X B C D Threaded Ends E 50 Flanged Flanged Threaded Ends F 50 Flanged Flanged G & H Valve Size (mm) Threaded Ends A 50 Flanged Flanged X B C D Threaded Ends E 50 Flanged Flanged Threaded Ends F 50 Flanged Flanged G & H E C F E-50B-KG/050B-KGL (R-0/0) CLA-VAL PO Box 5 Newport Beach CA Phone: Fax: Web Site: cla-val.com claval@cla-val.com CLA-VAL CANADA CLA-VAL EUROPE CLA-VAL UK 87 Christie Drive Chemin des Mésanges Dainton House, Goods Station Road Beamsville, Ontario CH-0 Romanel/ GB - Tunbridge Wells Canada L0R B Lausanne, Switzerland Kent TN DH England Phone: Phone: Phone: Fax: Fax: Fax: sales@cla-val.ca cla-val@cla-val.ch info@cla-val.co.uk Copyright CLA-VAL 0 Printed in USA Specifications subject to change without notice. Represented By:

18

19 INSTALLATION / OPERATION / MAINTENANCE MODEL CRL Pressure Relief Control DESCRIPTION The CRL Pressure Relief Control is a direct acting, spring loaded, diaphragm type relief valve. It may be used as a self-contained valve or as a pilot control for a Cla-Val Main valve. It opens and closes within very close pressure limits. INSTALLATION The CRL Pressure Relief Control may be installed in any position. The control body (7) has one inlet and one outlet port with a side pipe plug () at each port. These plugs are used for control connections or gauge applications. The inlet in the power unit body () is the sensing line port. A flow arrow is marked on the body casting. OPERATION The CRL Pressure Relief Control is normally held closed by the force of the compression spring above the diaphragm; control pressure is applied under the diaphragm. When the controlling pressure exceeds the spring setting, the disc is lifted off its seat, permitting flow through the control. When controlling pressure drops below spring setting, the spring returns the control to its normally closed position. ADJUSTMENT PROCEDURE The CRL Pressure Relief Control can be adjusted to provide a relief setting at any point within the range found on the nameplate. Pressure adjustment is made by turning the adjustment screw (9) to vary the spring pressure on the diaphragm. Turning the adjustment screw clockwise increases the pressure required to open the valve. Counterclockwise decreases the pressure required to open the valve. When pressure adjustments are complete the jam nut (0) should be tightened and the protective cap () replaced. If there is a problem of tampering, lock wire holes have been provided in cap and cover. Wire the cap to cover and secure with lead seal. DISASSEMBLY The CRL Pressure Relief Control does not need to be removed from the line for disassembly. Make sure that pressure shut down is accompanied prior to disassembly. If the CRL is removed from the line for disassembly be sure to use a soft jawed vise to hold body during work. Refer to Parts List Drawing for Item Numbers.. Remove cap (), loosen jam nut (0) and turn adjusting screw counterclockwise until spring tension is relieved.. Remove the eight screws () holding the cover () and powerunit body (). Hold the cover and powerunit together and place on a suitable work surface. See NOTE under REASSEMBLY.. Remove the cover () from powerunit body (). The spring () and two spring guides ().. Remove nut () from stem (9) and slide off the belleville washer (), the upper diaphragm washer (5) and the diaphragm (). 5. Pull the stem (9) with the disc retainer assembly () through the bottom of powerunit. The lower diaphragm washer (7) will slide off of stem top.. Remove jam nut () and disc retainer assembly () from stem. Use soft jawed pliers or vise to hold stem. The polished surface of stem must not be scored or scratched. 7. The seat () need not be removed unless it is damaged. If removal is necessary use proper size socket wrench and turn counterclock wise. Note: Some models have an integral seat in the body (7). INSPECTION Inspect all parts for damage, or evidence of cross threading. Check diaphragm and disc retainer assembly for tears, abrasions or other damage. Check all metal parts for damage, corrosion or excessive wear. REPAIR AND REPLACEMENT Minor nicks and scratches may be polished out using 00 grit wet or dry sandpaper fine emery or crocus cloth. Replace all O-rings and any damaged parts. When ordering replacement parts, be sure to specify parts list item number and all nameplate data. REASSEMBLY In general, reassembly is the reverse of disassembly. However, the following steps should be observed:. Lubricate the O-Ring (8) with a small amount of a good grade of waterproof grease, (Dow Corning medium grade or equal). Use grease sparingly and install O-ring in powerunit body ().. Install stem (9) in powerunit body (). Use a rotating motion with minimum pressure to let stem pass through O-ring. Do Not Cut O-Ring.. Install O-ring (5) at top of stem (9). Place lower diaphragm washer (7) on the stem with the serrated side up. Position diaphragm (), upper diaphragm washer (5), with serration down, and belleville washer () with concave side down.. Position powerunit body () as shown on parts list drawing (top view). 5. Continue reassembly as outlined in disassembly steps through. Note: Item () Screw will have a quantity of 8 for the 0-75 and 0-00psi design and a quantity of for the 00-00psi design. Item (5) Screw is used on the 00-00psi design only. Install item (5), before item () for preload of item () spring. SYMPTOM PROBABLE CAUSE REMEDY Fails to open. Fails to open with spring compression removed. Leakage from cover vent hole when controlling pressure is applied. Fails to close. Fails to close with spring compressed. Controlling pressure too low. Mechanical obstruction, corrosion, scale build-up on stem. Diaphragm Damage Loose diaphragm assembly. No spring compression. Mechanical obstruction. Back off adjusting screw until valve opens. Disassemble, locate,and remove obstruction, scale. Disassembly replace damaged diaphragm. Tighten upper diaphragm washer. Re-set pressure adjustment. Disassemble, locate and remove obstruction. CLA-VAL P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. N-CRL (R-/0)

20 TRUE LOCATION OF SENSING CONNECTION (TYP.) 5º Ajusting Screw (/8" - UNF THREAD) /8-7 NPT SENSING CONNECTION (TYP.) 8 9 INLET 8 7 CRL /" & /" PRESSURE RELIEF CONTROL (Bronze Body with 0SS Trim) DIA. 7 5 OUTLET 0 7. MAX.7 0 TO 75 AND 0 TO 00 PSI DESIGN 0. MAX. ADJUSTING SCREW (/" 0UNF THREAD) Body with integral Seat 00 To 00 psi Design CRL Range PSI PARTS LIST SIZE SPRING PART NUMBER / 0-75 PSI 790E / 0-05 PSI 7905F / 0-00 PSI 790C / PSI 88090D / 0-75 PSI 7990K / 0-05 PSI 7990F / 0-00 PSI 7990H / PSI 80050E For PSI Contact Factory APPROX. INCREASE FOR EACH CLOCKWISE TURN OF ADJUSTING SCREW 0 to PSI 0 to 05.5 PSI 0 to PSI 00 to PSI When ordering parts please specify:. All Nameplate Data. Item Part Number. Item Description Item Description Material Part Number Part Number Part Number Part Number Cap Plastic 78J 78J 78J 570D Nameplate Brass Cover Bronze C5K C5K C5K 587E * Screw Fil. Hd. 0- x.88 (Qty 8) 0 SS 75787E 75787E 75787E 75787E 5* O-Ring Rubber 0090H 0090H 0090H 0090H Body, Powerunit Bronze 79050D 79050D 79050D 79050D 7 / Body Bronze C798K C798K C798K C798K / Body Bronze C908B C908B C908B C908B 8* O-Ring, Seat Rubber 0078H 0078H 0078H 0078H 9 Screw, Adjusting Brass 7880D 7880D 7880D 88B 0 Nut Hex (Locking) 0 SS 7800J 7800J 7800J 7800H Guide, Spring 0 SS 788H 788H 788H 00J Spring CHR/VAN 788B 00E 7885J 00A Nut, Stem Upper Bronze 70B 70B 70B 70B Washer, Belleville Steel E E E E 5 Washer, Diaphragm (upper) 0 SS 789G 789G 789G 789G * Diaphragm Rubber C505B C505B C505B C505B 7 Washer, Diaphragm (lower) 0 SS 587B 587B 587B 587B 8* O-Ring, Stem Rubber 007J 007J 007J 007J 9 Stem 0 SS 8980F 8980F 8980F 8980F 0* O-Ring, Body Rubber 0077E 0077E 0077E 0077E * Retainer Assembly, Disc 0 SS C958B C958B C958B C958B Seat 0Rub 87A 87A 87A 87A Nut, Hex, Stem, Lower Bronze 77980G 77980G 77980G 77980G Pipe Plug Bronze 7870C 7870C 7870C 7870C FACTORY SET POINT 50 PSI 0 PSI 0 PSI 00 PSI REPAIR KIT* A A A A CLA-VAL P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. PL-CRL (R-8/0)

21 INSTALLATION / OPERATION / MAINTENANCE Self Scrubbing Cleaning Action Straight Type or Angle Type MODEL X Flow Clean Strainer XB Angle XA Straight The Cla-Val Model X Strainer is designed to prevent passage of foreign particles larger than.05". It is especially effective against such contaminant as algae, mud, scale, wood pulp, moss, and root fibers. There is a model for every Cla-Val. valve. The X Flow Clean strainer operates on a velocity principle utilizing the circular "air foil" section to make it self cleaning. Impingement of particles is on the "leading edge" only. The low pressure area on the downstream side of the screen prevents foreign particles from clogging the screen. There is also a scouring action, due to eddy currents, which keeps most of the screen area clean. Dimensions (In Inches) H C SAE B Male Pipe G I A XB E Female D Pipe X Angle Type B (In Inches) B(NPT) C(SAE) D E H I /8 / -/8 5/8 7/8 / / / -/ / /8 /8 / 7/8 / /8 /8-7/8 7/8 / / /8 -/8 -/ 5/8 Width Across Flats F D B E XA When Ordering, Please Specify: Male Pipe Catalog Number X Straight Type or Angle Type Size Inserted Into and Size Connection Materials I XA Straight Type A (In Inches) A (NPT) B (NPT) D E F G I /8 /8 -/ / / / / / / -/ / / /8 /8 /8 -/ 7/8 7/8 / /8 / -/ -/ / 7/8 / / / -/ -/8 / /8 / -/8 / 7/8 / / -/ 7/8 /8 -/ -/ / -/8 7/8 -/ -/ -/ -/ 7/8 / -/ -/ / -/8 7/8 INSTALLATION The strainer is designed for use in conjunction with a Cla-Val Main Valve, but can be installed in any piping system where there is a moving fluid stream to keep it clean. When it is used with the Cla-Val Valve, it is threaded into the upstream body port provided for it on the side of the valve. It projects through the side of the Main Valve into the flow stream. All liquid shunted to the pilot control system and to the cover chamber of the Main Valve passes through the X Flow Clean Strainer. INSPECTION Inspect internal and external threads for damage or evidence of cross-threading. Check inner and outer screens for clogging, embedded foreign particles, breaks, cracks, corrosion, fatigue, and other signs of damage. DISASSEMBLY Do not attempt to remove the screens from the strainer housing. CLEANING After inspection, cleaning of the X can begin. Water service usually will produce mineral or lime deposits on metal parts in contact with water. These deposits can be cleaned by dipping X in a 5-percent muriatic acid solution just long enough for deposit to dissolve. This will remove most of the common types of deposits. Caution: use extreme care when handling acid. If the deposit is not removed by acid, then a fine grit (00) wet or dry sandpaper can be used with water. Rinse parts in water before handling. An appropriate solvent can clean parts used in fueling service. Dry with compressed air or a clean, lint-free cloth. Protect from damage and dust until reassembled. REPLACEMENT If there is any sign of damage, or if there is the slightest doubt that the Model X Flow Clean Strainer may not afford completely satisfactory operation, replace it. Use Inspection steps as a guide. Neither inner screen, outer screen, nor housing is furnished as a replacement part. Replace Model X Flow Clean Strainer as a complete unit. When ordering replacement Flow-Clean Strainers, it is important to determine pipe size of the tapped hole into which the strainer will be inserted (refer to column A or F), and the size of the external connection (refer to column B or G). CLA-VAL P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. N-X (R-/0)

22 XA Strainer and Orifice Assembly BRONZE BODY DELRIN ORIFICE /8" x /8" PARTS LIST XA STOCK NO. ORIFICE DIA. ORIFICE PLUG PART # (ITEM 5) /8 NPT /8 NPT / / /8 5 7/8 Inlet Outlet /8 NPT F -0-0B -0K -05G -0 * -07C *Standard E -0C -0A -05H -0-07D H -F When ordering parts, please specify: All Nameplate Data Item Number Description Recommended Spare Parts / MAX. 7 ITEM DESCRIPTION MATERIAL QTY. Body Red Brs. Plug, Top Brass "O" Ring, Plug Top Syn. Rub. Screen Monel 5 Orifice Plug Delrin Plug, Pipe Brass 7 Strainer Plug S.S. 8 "O" Ring, Strainer Plug Syn. Rub. CLA-VAL P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. PL-xa (R-/0)

23 PARTS LIST 8-0 /8" Check Valve ITEM DESCRIPTION.50 A A. Cover Screw (8 Required). Cover *. Spring. Diaphragm Washer *5. Diaphragm *. Disc Retainer Assembly 7. Body Plug (/8 NPT) 8. Body (Threaded) *Recommended Spare Parts.50 5 /8 N.P.T. BOTH ENDS Outlet Inlet.5 /8 N.P.T. Flow.75 SECTION AA 8 7 When ordering parts, please specify: All nameplate data Description Part Number Item Number Material

24 PARTS LIST 8-0 /" & / Check Valve ITEM DESCRIPTION 0 7. DIA. Body. Cover *. Diaphragm. Guide Disc *5. Disc Retainer Assembly 7. Nut Hex /8 - UNF 8 8. Plug Pipe Hex NPT 9. Screw, Fil HD 0 UNF x LG 8 0. Spring. Nameplate *Recommended Spare Parts INLET OUTLET 8 FLOW.50.5 When ordering parts, please specify: All nameplate data Description Part Number Item Number Material CLA-VAL P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. PL-8-0 (R-/0)

25 MODEL X Cla-Val Gauge Option Liquid-Filled Dual Scale (PSI / BAR) Long Life Stainless Steel Construction Tamper-Resistant Design " and " Diameter Sizes Available Pressure Ranges Model X " Pressure Gauge X Gauge Assembly for " and smaller valves ( /" Diameter Dial) Pressure Range* Part Number 0-0 psi 050 A 0-00 psi 050K 0-0 psi 05J 0-00 psi 050J 0-00 psi 050H 0-00 psi 0505G X Gauge Assembly for 8" and larger valves (" Diameter Dial) Pressure Range* Part Number 0-0 psi 050F 0-00 psi 0507E 0-00 psi 0508D 0-00 psi 0509C 0-00 psi 050K Isolation Valve Included The Cla-Val Model X Pressure Gauge Option consists of glycerin-filled pressure gauges with Cla-Val Logo installed with CK Bronze Isolation Valves on main valve inlet and outlet. Gauges are waterproof, shock resistant, and fully enclosed with Stainless Steel case and Bronze wetted parts. All gauges have dual scale (PSI/BAR) and.5% F.S. accuracy with /" NPT bottom connection. " Diameter Dial supplied with " and smaller valves. " Diameter Dial supplied with 8" and larger valves. Available installed on new valves and must be specified on customer Purchase Order. Other materials available - consult factory. Typical Installation of X Typical Installation of X Both Gauges Installed *Specify desired pressure range and valve location (inlet or outlet) on order. CLA-VAL P.O. Box 5 Newport Beach, CA Phone: Fax: claval@cla-val.com Website cla-val.com Copyright Cla-Val 0 Printed in USA Specifications subject to change without notice. E-X (R-7/0)

26 MODEL 50B-KG/050B-KG Product Identification How to Order Proper Identification For ordering repair kits, replacement parts, or for inquiries concerning valve operation it is important to properly identify Cla-Val products already in service. Include all nameplate data with your inquiry. Pertinent product data includes valve function, size, material, pressure rating, end details, type of pilot controls used and control adjustment ranges. Identification Plate For product identification, cast in body markings are supplemented by the identification plate illustrated on this page. The plate is mounted in the most practical position. It is extremely important that this identification plate is not painted over, removed, or in any other way rendered illegible. Specify when ordering Model Number Adjustment Range (As Applicable) Valve Size Optional Features Pressure Class How To Order Unless Otherwise There are many valves and controls manufactured by Cla-Val. that Specified X Y Strainer is are not listed due to the sheer volume. For information not listed, included. CK Isolation Valves is please contact your local Cla-Val included in price on " and representative. larger valve sizes. Limited Warranty Automatic valves and controls as manufactured by Cla-Val are warranted for one year from date of shipment against manufacturing defects in material and workmanship which develop in the service for which they are designed, provided the products are installed and used in accordance with all applicable instructions and limitations issued by Cla-Val. Electronic components manufactured by Cla-Val are warranted for one year from the date of shipment. We will repair or replace defective material, free of charge, which is returned to our factory, transportation charges prepaid, provided that, after inspection, the material is found to have been defective at time of shipment. This warranty is expressly conditioned on the purchaser s giving Cla-Val immediate written notice upon discovery of the defect. Components used by Cla-Val but manufactured by others, are warranted only to the extent of that manufacturer s guarantee. This warranty shall not apply if the product has been altered or repaired by others, and Cla-Val. shall make no allowance or credit for such repairs or alterations unless authorized in writing by Cla-Val. Disclaimer Of Warranties And Limitations Of Liability The foregoing warranty is exclusive and in lieu of all other warranties and representations, whether expressed, implied, oral or written, including but not limited to any implied warranties or merchantability or fitness for a particular purpose. All such other warranties and representations are hereby cancelled. Cla-Val shall not be liable for any incidental or consequential loss, damage or expense arising directly or indirectly from the use of the product. Cla-Val shall not be liable for any damages or charges for labor or expense in making repairs or adjustments to the product. Cla-Val shall not be liable for any damages or charges sustained in the adaptation or use of its engineering data and services. No representative of Cla-Val may change any of the foregoing or assume any additional liability or responsibility in connection with the product. The liability of Cla-Val is limited to material replacements F.O.B. Newport Beach, California.