H-1 & H-1-A CONTROLAIR VALVE

Transcription

1 H- & H--A CONTROLAIR VALVE Service Information DESCRIPTION OF MODELS The H- and H--A Type CONTROLAIR Valves are spring returned pedal actuated 3-way pressure graduating valves. A pedal actuates the valve to increase, decrease or maintain graduated air pressure to a separate delivery line. MOUNTING! Devices should be mounted and positioned in such a manner that they cannot be accidentally operated. In pedal release position, the delivery line is connected to exhaust. Depressing the pedal actuates the graduating portion to deliver graduated pressure to a delivery line according to the value of control spring being used. MODELS H- CONTROLAIR Valve: The H- CONTROLAIR Valve is a pedal actuated, 3-way pressure regulating valve, suitable for applications where the valve portion extends below the floor level. Depressing the pedal increases the outlet delivery pressure, releasing the pedal decreases the delivery pressure. The pedal is self-returning from all depressed positions. H- CONTROLAIR Valve (light pedal force): This version of the H- operates identically to the standard H-, but has a considerably lighter pedal force that makes it especially suited for throttle controls. This model also offers an alternative piping arrangement as the valve portion from the H-2 Valve version is utilized. A formed steel pedal with a rubber tread is utilized on this model. H- CONTROLAIR VALVE Table of Contents H--A CONTROLAIR VALVE Page H--A CONTROLAIR Valve: the H--A CONTROLAIR Valve is a pedal actuated 3-way pressure regulating valve that is designed for installations in which its operator is standing or in which part of the valve cannot extend below floor levels. Depressing its pedal increases the outlet delivery pressure. Releasing the pedal decreases the outlet delivery pressure. The pedal is self-returning. WARNING: INSTALLATION AND MOUNTING The user of these devices must conform to all applicable electrical, mechanical, piping and other codes in the installation, operation or repair of these devices. INSTALLATION! Do not attempt to install, operate or repair these devices without proper training in the technique of working on pneumatic or hydraulic systems and devices, unless under trained supervision. Compressed air and hydraulic systems contain high levels of stored energy. Do not attempt to connect, disconnect or repair these products when a system is under pressure. Always exhaust or drain the pressure from a system before performing any service work. Failure to do so can result in serious personal injury. Description of Models... Technical Data... 2 Installation... 2 Maintenance and Repair... 2 Outline Dimensions (H-)... 3 Outline View Description of Operation... 6 Symbol... 6 Diagrammatic View... 6 Identity Schedule... 7 Exploded Views... 8 Parts List... 9 Repair Kit List Maintenance and Repair Instructions Adjustment and Repair Instructions Testing: Function... 4 Pressure Range... 4 Leakage... 4 Flow Capacity... 4 Response... 4 Test Set-up... 4 Test Diagram... 5 Warnings and Warranties... 6 SM

2 Installation and General Maintenance Recommendations Installation Before installing the Controlair Valve, all air lines in the system should be blown clean to remove any moisture, dirt, or harmful contamination. Strainers are furnished in the Inlet and Outlet ports to protect the valve from large particles of forgoing matter in the line. To further ensure long, troublefree service, a 0 Micron or better filter should be installed in the supply line to the valve. All Controlair Valves utilize a pipe bracket. Piping connections made to the pipe bracket need not be disturbed when removing the operator portion for maintenance. The H- Controlair Valves are designed for floor mounting; the complete assembly is installed and removed from the top of the floor. The valve extends beneath the floor. Refer to page 3 & 4 for panel opening dimensions. Allow suitable clearance for pipe bracket cap screws which are ¾ long. H--A Controlair Valve is mounted directly to a floor platform by two bolts through the lugs in the pipe bracket. The floor, or platform normally serves as a stop for the pedal. Refer to installation view on page 5 for panel opening dimensions. Allow suitable clearance for pipe bracket screws which are ¾ long. General Maintenance Maintenance periods should be scheduled in accordance with frequency of use and working environment of the Controlair Valve. All valves must be visually inspected for wear and given an in system operating performance and leakage test at least once a year. If these visual observations indicate valve repair is required, the valve must be removed, repaired and tested. A major overhaul is recommended at one million cycles. However, where frequency of use is such that it would require more than two years to obtain one million cycles, the valve must be overhauled at the two-year period. When it is determined that the Controlair Valve requires a major repair as a result of the one million cycles, one year routine inspection, or the two year service period has elapsed, the device must be disassembled, cleaned, inspected, parts replaced as required, rebuilt and tested for leakage, and proper operation prior to installation. Refer to Major Repair and Maintenance Instruction, pages 2 & 3, and Test Procedures, page 4. One complete Controlair Valve should be kept in stock for each four valves in service. During the maintenance period, replace the complete valve with the stand-by unit. This will reduce production time loss and afford inspection and replacement of worn parts at a more appropriate or opportune time and favorable location. Notice that the operating portion of a valve can be removed without disturbing the pipe connections. Remove the valve from the pipe bracket by loosening four (4) screws and lift the unit free. No special tools are required to maintain the Controlair Valve. Technical Data Maximum Operating Pressure psi (3.8 Bar) Admissible Medium... Air, clean and dry Operating Temperature F to +60 F (-40 C to 7 C) Hysteresis... ½ psi Control Pressure Range... (Reference Identity Chart, Pg 7) Pressure Change... ½ psi Increment Mounting... Flange Plate Port Size... ¼ - 8 NPTF Materials Controlair Valve Housing and Body... Die Cast Aluminum Internal Parts... Brass, Rubber (buna-n), Aluminum, Steel, Plastic and Hytrel Inlet Valve Assemblies Weight... 9 lbs. (4. Kg.) approximately Page 2

3 H- CONTROLAIR VALVES OUTLINE DIMENSIONS Page 3

4 H- CONTROLAIR VALVE LIGHT PEDAL FORCE OUTLINE VIEW Page 4

5 H--A CONTROLAIR VALVES OUTLINE VIEW Page 5

6 DESCRIPTION OF OPERATION Description of Operation When the pedal is in released position, the IN port is closed to supply pressure and OUT port is open to exhaust. Note: In the diagrammatic, when the pedal is depressed downward to increase pressure, the pedal forces the follower to push down the pressure control plunger, closing the lower exhaust valve and opening the upper supply valve, which permits air to flow to out port delivery and the upper diaphragm chamber. As the pressure builds up in the delivery line, it acts through the sensing port orifice and deflects the control diaphragm downward, compressing the control spring. When sufficient diaphragm deflection is obtained to allow the upper supply valve in the pressure control portion to close, the pressure in the delivery line is held to that value. VALVE SYMBOL IN OUT H- & H--A Controlair Valve The value of the pressure delivered to the outlet port is proportional to the pressure control plunger movement. This movement in turn is controlled by the cam contour, and is therefore proportional to the pedal travel. The Controlair Valve will automatically compensate for downstream air pressure changes in the graduated pressure delivery line. These air pressure changes can be caused by line leakage, temperature change or load feedback. If air pressure at the outlet port increases over that called for by pedal position, the diaphragm in the control portion will deflect downward opening the lower exhaust valve and exhausting air until the original setting is obtained. If the pressure drops below that called for by the pedal position, the decreased force on the diaphragm will allow the control spring to force the diaphragm upward, opening the upper supply valve to restore the set pressure. The range of pressure is controlled by the strength of the diaphragm spring. Various values are available as shown on Identity Schedule, page 7. INLET & EXHAUST VALVE UNIT SUPPLY VALVE EXHAUST VALVE * RANGE CONTROL SPRING EXHAUST PORT DIAPHRAGM ADJUSTING SCREW DIAGRAMMATIC VIEW *Note: H- Controlair Valve shown. Internal parts same on H- Controlair valve (light pedal force) and H--A Controlair Valve. Page 6

7 IDENTITY SCHEDULE Model New Complete Part Number Old Complete Part Number Control Pressure Range (PSI) Control Spring New Part Number Control Spring Old Part Number Valve Portion New Number Valve Portion Old Part Number Remarks H- R P psi R P R P H- R P psi R R P H- R P psi R R P H- R P psi R P R P H- R P psi R P R P H- R P psi R P R P H- R P psi R P R P H- R P psi R R P H- P psi R P P H- R P psi R P R P H- R P psi R R P H- R P psi R R P Note Note 2 Note 3 Note 4 Note 4 Note 4 H-A R P psi R P R P H-A R P psi R R P H-A R P psi R R P H-A R P psi R P R P H-A Obsolete P psi R P R P H-A Obsolete P psi R P R P Note 5 *H- Control Portion part number is less pipe bracket, pedal operator portion and mounting screws. See pages 8 & 9 for control portions item numbers and parts list. See page 0 for pipe bracket and operator item numbers and parts list. Note : Same as H- Type R (P ) except light pedal spring R (P ), item 5, page 8 Note 2: Same as H- Type R (P ) except light pedal spring R (P ), item 5, page 8 Note 3: With full pressure feature (consult factory for (P ) parts). Note 4: With rubber tread (light pedal force). Note 5: Same as H- Type R (P ) except less pedal, items 7, 8, and 9, page 0 Page 7

8 EXPLODED VIEW H-, H--A H- (Light Pedal) R (P Series) a 6a Part No. R (P ) NOTE:. See page 9 & 0 for part numbers. 2. See page for repair kits 3. Match/lapped set of items 8 & 3 are in kit, p/n R (P ) page. 0 2 Diaphragm with Exhaust Valve Seat. Complete (Includes No. 8, 9, 0 & 2) 5 See Identity Schedule 4 2 Part No. R (P ) Spring Housing Complete (Includes No and 2) 3 Page 8

9 PARTS LIST Item Qty Ref a 7 7a * a Description Adjusting screw Spring housing with nut Nuts 5/6-8 Spring seat Control spring Body with 2 studs Body with 2 studs 5/6 8 x 3/8 Cap screws 5/6 8 x /8 Cap screws Dia. Unit Kit incl. 8,9,0,,2 Exhaust valve seat /6 O.D. O ring Diaphragm Diaphragm follower 9/6 8 Hex nut Inlet & exhaust valve ¾ O.D. O ring Exhaust valve spring Boot, dirt protector Strainers Gasket Pin, pivot Retaining ring, ¼ Cam Dog Cam roller assembly (incl. 22,23,24) Lever with tip and nut Roller, cam Pin, fulcrum (eccentric) H--A+New P/N P R R R R See Page 7 R R See 2 a See 2 a See 2 a H--A+ Old P/ N P * P P P See Page P See 2a See 2a See 2a New H-++ Lt. Pedal P * R R R R See Page 7 R R Control Portions Old P/N H-++ Lt. Pedal P * P R P R P R R See Page 7 See Page 7 R P P New P/N H-+ Cast Body P * R See 2a See 2 a See 2 a Old P/N H-+ Cast Body P * P P P See Page P P See 2a See 2a See 2a Repair Kits are listed on page. *Note: Appropriate suffix from Identity Schedule, page 7 must be used to identify valve and pressure rating. + Control portion less pipe bracket, mounting screws and operator. ++ Control portion less pipe bracket, pedal portion, mounting bolts, screws, washer and boot. Page 9

10 PARTS KITS H- Type (P and P Series) Service Ref Qty Description New Part No. Old Part No. 2 3/8-6x¾ Cap screws R a 2 Washer 3/8 lock R P Pedal bracket complete R P Pedal pin 3/8 x 2 7/8 4 2 Retaining Rings 5 Pedal Return Spring 5a Pedal Return Spring (light) R P Pedal stop screw R P Nut ¼ - 20 R P Pedal R P n/a Pipe bracket R P H- Rubber Tread Light Pedal Force (P Series) Service Ref Qty Description New Part No. Old Part No. 2 5/6-8 x ¼ Cap screws R P Pipe bracket R P /6-8 x bolts R P /6 Washers R P /6-8 Nuts R P Pedal portion (incl. 6-5) P Mounting bracket 7 2 Retaining rings 8 Pins 9 Spring R P Screw minimum pressure Locknut 2 Screw minimum pressure 3 Locknut 4 Pedal 5 Tread R P Boot, dirt protector R H--A Type (P Series) Service Ref Qty Description New Part No. Old Part No. 2 3/8-6 x 3¼ Cap screws R /8 Lock washers R P Pipe bracket R P Lever retainer R P Pedal fulcrum R P /6 x 5/8 Roll pin See Repair Kit See Repair Kit Pedal complete, consisting of 7,8,& 9) R P Pedal 8 Pedal stop screw 9 ¼ 20 Nut Page 0

11 REPAIR KITS FOR H- AND H--A Control Portion and Lever Kits (See pages 8 & 9) Part Number Quantity Per Valve Description R Minor graduating valve portion - - repair kit (includes items (P *) 8,9,0,,2,3, 4) see note R Major graduating valve portion repair kit (includes items (P K0000) 5,6,7,8, and kit P55687-K0000) R Kit, lever repair for standard H- and H--A (includes (P ) items 9,20,2,22,23,24) Pedal Operator Kits (See page 0) Part Number R (P ) R (P ) Quantity Per Valve Description Operator kit for H--A (includes items 4,6, and kit P65636) Operator kit for standard H- (includes items 3,4,5) Kits for Replacing Old Style Pedal (pre-986) to Current Design Repair Kit Complete pedal kit with pipe bracket and standard springs for H- Complete pedal ret/w pipe bracket and light spring for H- Old Part No. (Pre 986) Old Part No. ( ) P05090 P P52539 P New replacement pedal and pin kit for H P Other kits obsoleted P and P5090- P5090- P New Part No.( 2008-) R R R R Notes: *. The inlet and exhaust valve unit item 3 and exhaust valve seat item 8 must be lapped together to form a matched set. Kit contains these items factory matched. 2. Select replacement range control spring from identity schedule page All repair kits above include small tubes of recommended lubricant. 4. Valve portion kits listed above contain seals and other parts that are recommended for repair of valve portion only. 5. On severely worn or damaged components, additional parts may be required especially in the mechanical operating portions of the valve. Select these as required from parts list on pages 8, 9 and 0. Page

12 MAJOR REPAIR AND MAINTENANCE, ADJUSTMENTS Major Repair and Maintenance Instructions When it is determined that the Controlair Valve requires shop repairs (see page 2 for general maintenance and repair recommendations), the following general instructions are recommended: Disassembly, Cleaning and Lubrication Complete disassemble the Controlair Valve. Wash all metal parts in a non-flammable solvent. Rinse each part thoroughly and blow dry with a low-pressure air jet. Arrange the parts on a clean surface. Inspect and clean screens, item 6. Be sure all body and bracket passages are clear and unrestricted. Be sure sensing port orifice in top of diaphragm chamber is clear. Examine each part carefully. Replace all rubber parts and all other worn or damaged parts. The use of repair kits is strongly recommended, see page. Reassembly Refer to exploded parts and assembly views. Valve should be reassembled using new rubber parts and parts indicated by inspection. As reassembly proceeds, lubricate all metal-to-metal wear surfaces with 07 Lubriplate Grease. Lubricate all rubber parts, except diaphragm with No. 55 Dow Corning Pneumatic Grease. Do not lubricate diaphragm. The exhaust valve and seat may have to be slightly polished for minimum leakage. If necessary, use BW valve lapping compound (600+ grit). H- Adjustment (reference page 5 for test setup and page 0 for part references) With the H- Controlair Valve pedal fully released, turn the adjusting screw at the bottom of housing clockwise until the delivery gauge begins to move from 0 pressure setting. With pressure gauge reading from 0 to 3 psi maximum, turn the adjusting screw one full turn counterclockwise. Fully depress the pedal (8) and adjust the pedal stop screw (6) to obtain the maximum specified pressure setting as per identity schedule on page 7. Release the pedal, tighten lock nut (7). Depress the pedal again and check to see that, at full travel, the maximum specified pressure ± 3 psi is obtained. Release the pedal. PC. No. P65292 has full pressure feature and requires additional adjustment. Install.030-feeler gauge at pedal stop. Depress pedal fully and hold. Adjust screw in pedal to obtain psi at delivery gauge. Release the pedal to full release position and tighten the lock nut. Depress the pedal again and check the specified pressure. With pedal depressed, screw inward the set screw in the adjusting screw at bottom of spring housing until delivery pressure gauge just begins to show pressure increase. Release the pedal, remove feeler gauge, and recheck. Valve should graduate pressure 0 to 35 psi and then go into full supply pressure. Release the pedal Adjustments and Test Set Up The valve is factory set to provide the appropriate graduated pressure and mechanical operation per part number (see identity schedule on page 7). However, after the Controlair has been disassembled, repaired and reassembled it must be adjusted and tested for proper operation prior to returning to service. It is recommended that the valve should be connected in a test set up as shown on page 5. H- CONTROLAIR VALVE Page 2

13 MAJOR REPAIR AND MAINTENANCE, ADJUSTMENTS (continued) H- (light pedal) Adjustment (ref. Page 5 for test set-up and page 0 for part references) With the H- Controlair Valve pedal fully released, turn the adjusting screw at the bottom of housing clockwise until the delivery gauge begins to move from 0 pressure setting. With pressure gauge reading from 0 to 3 psi maximum, turn the adjusting screw one full turn counterclockwise. Fully depress the pedal (4) and adjust the pedal top screw (2) to obtain the maximum specified pressure setting as per identity schedule, page 7, release the pedal. Tighten lock nut (3). Depress the pedal again and check to see that at full travel, the specified pressure ± 3 psi is obtained. Release the pedal. 4. Check delivered air pressure from valve. It should be the pressure range indicated on identity schedule, page 7, for the part number valve. 5. Adjust bottom set screw () (adjustment C) to obtain the pressure range rating of the control spring in use. When using this adjustment to obtain the rated maximum pressure setting, always be sure the delivered pressure goes to zero upon release of the pedal. 6. The inability to complete the above adjustments on a repaired valve would indicate the following possibilities: Pedal, cam roller and/or eccentric pin is worn past the point where step 2 can be completed. Replace as necessary. Incorrect control spring for the range desired check the spring in use. Or the control spring has taken some permanent set and should be replaced. Valve not mounted, or in use, on a flat surface. Pedal pivot pinpoint and/or pin worn. (H- Light Pedal) Controlair Valve Inlet and exhaust valve assembly and/or exhaust valve seat (items 3 & 8 on page 8 of service bulletin) have been reseated and are out of dimensional tolerance. It is recommended that these units be fully replaced with new parts when necessary. Adjustment C Graduated Pressure Adjusting Screw () H--A Adjustment (ref. Page 5 for test setup and pages 8 & 0 for part references). Place valve with mounting feet firmly on a flat surface, bolting the valve down if necessary. 2. Adjust eccentric pin (24), page 8, (adjustment A) so that top of pedal rests about.75 above the flat surface as shown below. 3. Depress pedal to contact with the flat surface and adjust the travel stop bolt (8), page 0, to contact the body at this point (adjustment B). Tighten lock nut (9), page 0. Adjustment B Travel Stop 8 and Lock Nut 9 Adjustment A Eccentric Pin (24) H--A Controlair Valve Page 3

14 TESTING AND TEST SET-UP The H-, H- (light pedal) and H--A Controlair Valve can be tested after repair using the test arrangement shown below. Pressure control valves of this nature should be tested for the following:. Function 2. Pressure Range 3. Leakage 4. Flow Capacity 5. Response The adjustment affecting these points has been described in the previous section. General instructions for accomplishing the five tests above are as follows.. Function: The H- and H--A type Controlair Valves are spring returned pedal actuated 3- way pressure graduating valves. A pedal actuates the valve to increase, decrease or maintain graduated air pressure to a separate delivery line. This function should be checked using test arrangement shown. 2. Pressure Range: Supply pressure at IN port will be delivered as graduated pressure to Out port delivery line depending on value of control spring being used and pedal position. In pedal release position the out delivery line is connected to exhaust. Depressing the pedal actuates the graduating control portion to deliver graduated pressure to the out delivery line. See Adjustments to adjust valve. After valve is adjusted, check that the zero and maximum pressure ranges are generated in delivery line as per Identity Schedule. 3. Leakage: Set supply pressure to 20 psi above maximum delivery pressure of valve being tested. Using soap solution, coat the valve at pipe bracket and spring housing parting lines. No leakage is permitted in any pedal position. A. On all valves with spring ranges less than 00 psi, set supply lines pressure to 00 psi. Depress pedal to full travel position and hold. Close valve in supply line to IN port and valve in delivery line from OUT delivery line pressure gage. A pressure drop of no more than 2 psi in 30 seconds is permitted. B. On all valves with spring ranges 00 psi and above, set supply line pressure to 00 psi. Depress pedal to deliver 95 psi to delivery line from OUT port. Close valve in supply line to IN port and valve in delivery line from OUT port to trap the supply pressure at the valve. Observe the OUT delivery line pressure gage. A pressure drop of no more than 2 psi in 30 seconds is permitted. 4. Flow Capacity: Set supply line pressure to 00 psi regardless of control spring rating of valve. Depress pedal to full travel position. The delivery volume or volumes from OUT port should be inflated with time limits shown on Table. Release pedal quickly from full travel position to release position. The delivery volume or volumes connected to OUT port should be exhausted within time limits shown in Table. 5. Response: Depress pedal to full travel position. Fully open the test valve at delivery volume from OUT port. Observe the delivery pressure gage. A pressure drop of no more than 3 psi is permitted. Release pedal. Table Flow Capacity Tests Port OUT Test Ranges and Time Test Volume Cu. In. Valve Setting PSI Maximum Exhaust Maximum Fill PSI Time-Sec. PSI Time-Sec Page 4

15 TEST ARRANGEMENT DIAGRAM Notes:. Taskmaster Timing Volumes, part number R (TM ), can be used for the volumes indicated. 2. The supply air lines to the valves and delivery lines must be full size as shown. Line length must not exceed 3 feet between the supply valve and IN port, and between the OUT port and delivery test volumes. The piping connections must have zero leakage, and must not restrict the flow. If quick couplers are used, be sure they are full flow or oversize. 3. It is recommended that as large of a gauge as practical be used on the delivery lines. A 6 gauge is recommended. PRESSURE GAGE Test Valve (H- Light Pedal Shown) H- and H--A Connected Similar IN OUT 225 in in 3 /4 PIPE SCHEDULE 40 OR 3/8 O.D. TUBING OR #6 SINGLE BRAID HOSE CHOKE PLUG.032 OPTIONAL: REQUIRED FOR LOW SPRING RANGE VALVES ONLY. CLEAN, DRY, CHEMICAL FREE AIR SUPPLY 200 PSIG MAXIMUM (OR 20 PSIG ABOVE MAXIMUM DELIVERY PRESSURE OF ANY VALVE TESTED). AVENTICS P/N PD RECOMMENDED: AVENTICS P/N/ R (PR ) Page 5

16 NOTICE TO PRODUCT USERS WARNING: FLUID MEDIA AVENTICS pneumatic devices are designed and tested for use with filtered, clean, dry, chemical free air at pressures and temperatures within the specified limits of the device. For use with media other than air or for human life support systems, AVENTICS must be consulted. Hydraulic cylinders are designed for operation with filtered, clean, petroleum based hydraulic fluid; operation using fire-resistant or other special types of fluids may require special packing and seals. Consult the factory. 2. WARNING: MATERIAL COMPATIBILITY Damage to product seals or other parts caused by the use of non-compatible lubricants, oil additives or synthetic lubricants in the air system compressor or line lubrication devices voids AVEN- TICS warranty and can result in product failure or other malfunction. See lubrication recommendations below. AIR LINE LUBRICANTS! In service higher than 8 cycles per minute or with continuous flow of air through the device, an air line lubricator is recommended.* (Do not use line lubrication with vacuum products.) However, the lubricator must be maintained since the oil will wash out the grease, and lack of lubrication will greatly shorten the life expectancy. The oils used in the lubricator must be compatible with the elastomers in the device. The elastomers are normally BUNA-N, NEOPRENE, VITON, SILICONE and HYTREL. AVENTICS recommends the use of only petroleum based oils without synthetic additives, and with an aniline point between 80 F and 20 F. COMPRESSOR LUBRICANTS! All compressors (with the exception of special "oil free" units) pass oil mist or vapor from the internal crankcase lubricating system through to the compressed air. Since even small amounts of non-compatible lubricants can cause severe seal deterioration (which could result in component and system failure) special care should be taken in selecting compatible compressor lubricants. 3. WARNING: INSTALLATION AND MOUNTING The user of these devices must conform to all applicable electrical, mechanical, piping and other codes in the installation, operation or repair of these devices. INSTALLATION! Do not attempt to install, operate or repair these devices without proper training in the technique of working on pneumatic or hydraulic systems and devices, unless under trained supervision. Compressed air and hydraulic systems contain high levels of stored energy. Do not attempt to connect, disconnect or repair these products when a system is under pressure. Always exhaust or drain the pressure from a system before performing any service work. Failure to do so can result in serious personal injury. MOUNTING! Devices should be mounted and positioned in such a manner that they cannot be accidentally operated. 4. WARNING: APPLICATION AND USE OF PRODUCTS The possibility does exist for any device or accessory to fail to operate properly through misuse, wear or malfunction. The user must consider these possibilities and should provide appropriate safe guards in the application or system design to prevent personal injury or property damage in the event of a malfunction. 5. WARNING: CONVERSION, MAINTENANCE AND REPAIR When a device is disassembled for conversion to a different configuration, maintenance or repair, the device must be tested for leakage and proper operation after being reassembled and prior to installation. MAINTENANCE AND REPAIR! Maintenance periods should be scheduled in accordance with frequency of use and working conditions. All AVENTICS products should provide a minimum of,000,000 cycles of maintenance free service when used and lubricated as recommended. However, these products should be visually inspected for defects and given an "in system" operating performance and leakage test once a year. Where devices require a major repair as a result of the one million cycles, one year, or routine inspection, the device must be disassembled, cleaned, inspected, parts replaced as required, rebuilt and tested for leakage and proper operation prior to installation. See individual catalogs for specific cycle life estimates. 6. PRODUCT CHANGES Product changes including specifications, features, designs and availability are subject to change at any time without notice. For critical dimensions or specifications, contact factory. *Many AVENTICS pneumatic valves and cylinders can operate with or without air line lubrication; see individual sales catalogs for details. LIMITATIONS OF WARRANTIES & REMEDIES AVENTICS warrants its products sold by it to be free from defects in material and workmanship to the following: For twelve months after shipment AVENTICS will repair or replace (F.O.B. our works), at its option, any equipment which under normal conditions of use and service proves to be defective in material or workmanship at no charge to the purchaser. No charge will be made for labor with respect to defects covered by this Warranty, provided that the work is done by AVENTICS or any of its authorized service facilities. However, this Warranty does not cover expenses incurred in the removal and reinstallation of any product, nor any downtime incurred, whether or not proved defective. All repairs and replacement parts provided under this Warranty policy will assume the identity, for warranty purposes, of the part replaced, and the warranty on such replacement parts will expire when the warranty on the original part would have expired. Claims must be submitted within thirty days of the failure or be subject to rejection. This Warranty is not transferable beyond the first using purchaser. Specifically, excluded from this Warranty are failures caused by misuse, neglect, abuse, improper operation or filtration, extreme temperatures, or unauthorized service or parts. This Warranty also excludes the use of lubricants, fluids or air line additives that are not compatible with seals or diaphragms used in the products. This Warranty sets out the purchaser's exclusive remedies with respect to products covered by it, whether for negligence or otherwise. Neither, AVENTICS nor any of its affiliates will be liable for consequential or incidental damages or other losses or expenses incurred by reason of the use or sale of such products. Our liability (except as to title) arising out of the sale, use or operation of any product or parts, whether on warranty, contract or negligence (including claims for consequential or incidental damage) shall not in any event exceed the cost of replacing the defective products and, upon expiration of the warranted period as herein provided, all such liability is terminated. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHETHER FOR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE. No attempt to alter, amend or extend this Warranty shall be effective unless authorized in writing by an officer of AVENTICS Corporation. AVENTICS reserves the right to discontinue manufacture of any product, or change product materials, design or specifications without notice. Page 6

17 AVENTICS Corporation 953 Mercer Road Lexington, KY AVENTICS Incorporated 3426 Mainway Drive Burlington, Ontario CANADA L7M A8 SM /May 204 Subject to change. Printed in United States. AVENTICS Corporation. This document, as well as the data, specifications, and other information set forth in it, are the exclusive property of AVENTICS. It may not be reproduced or given to third parties without its consent.