Type EZR Relief Valve or Backpressure Regulator

Transcription

1 Instruction Manual Form 5476 Type EZR Relief 03/01 Type EZR Relief Valve or Backpressure Regular W7347 Introduction Figure 1. Type EZR Relief Valve or Backpressure Regular Scope of Manual This instruction manual provides installation, startup, shutdown, and maintenance procedures, and parts ordering information for the Type EZR relief valve or backpressure regular with a 6358 Series pilot. Any accessories used with this relief valve or backpressure regular are covered in their respective manuals. Product Description The Type EZR pilot-operated, pressure relief valve or backpressure regular is typically used in city gate and district stations as a relief valve for overpressure protection, or in commercial and industrial applications as a backpressure regular. The diaphragm and plug assembly moves in response the pilot loading pressure control upstream system pressure. Force from the main spring provides downward pressure keep the main valve tightly shut off. Specifications Specifications for the Type EZR relief valve or backpressure regular are listed on page 2. The set pressure range for a pilot as it comes from the facry appears on the spring case. Other information for an individual main valve appears on the nameplate. Patent Numbers 5,964,446 and 6,102,071 Additional Patents Pending D102629X012 Regulars

2 Specifications Main Valve Body Sizes, End Connection Styles, and Body Ratings (1) See table 1 Maximum Relief (Inlet) Pressure (1) See tables 3 and 6 Minimum Relief Set Pressure (1) 20 psig (1,4 bar) Set Pressure Ranges See table 3 Diaphragm Selection See tables 4, 5, and 6 Reseat Pressures See table 7 Main Valve Flow Direction Up through the center of the cage down through cage slots Noise Information See the Noise Information section Pressure Registration External through upstream control line Upstream Control Line Connection 1/4-inch NPT screwed in pilot body Pilot Spring Case Vent Connection 1/4-inch NPT screwed tapping Material Temperature Capabilities (1) See table 4 1. The pressure/temperature limits in this manual and any applicable standard or code limitation should not be exceeded. Principle of Operation A pressure relief valve is a throttling pressure control device that opens and closes ensure the downstream pressure does not rise above a predetermined pressure. Fisher relief valves cannot be used as ASME safety relief valves. A backpressure regular is a device that controls and responds changes in the upstream pressure. It functions the same as a relief valve in that it opens on increasing upstream pressure. Relief Valve As long as the inlet pressure is below the set pressure, the pilot control spring keeps the pilot valve plug closed. Inlet pressure passes through the pilot restriction and registers as loading pressure on p of the main valve diaphragm and plug assembly. Force from the main spring, in addition pilot loading pressure, provide downward loading pressure keep the main valve diaphragm and plug assembly tightly shut off. When the inlet pressure rises above the set pressure, the pressure on the pilot diaphragm overcomes the pilot control spring and opens the pilot valve plug. The pilot then exhausts the loading pressure from the p of the main valve diaphragm and plug assembly. The pilot continuously exhausts gas when the inlet pressure is above the set pressure. The inlet pressure unbalance overcomes the main spring force and opens the diaphragm and plug assembly. As the inlet pressure drops below the set pressure, the pilot control spring closes the pilot valve plug and the exhaust atmosphere sps. Force from the main spring, along with pilot loading pressure, pushes the diaphragm and plug assembly on the knife edged seat, producing tight shuff. Backpressure Regular As long as inlet pressure remains below setpoint, the pilot control spring keeps the pilot valve plug closed. Inlet pressure passes through the upper port around the upper portion of the valve plug and then through the hollow passage in that valve plug. Force from the main spring, in addition pilot loading pressure, provide downward loading pressure keep the main valve diaphragm and plug assembly tightly shut off. When inlet pressure rises above the set pressure, pressure on the pilot diaphragm overcomes the control spring close the upper port and stroke the valve plug open the lower port. The pilot exhausts loading pressure from the p of the main valve diaphragm. Inlet pressure unbalance overcomes the main spring force open the diaphragm and plug assembly. While the main valve is throttling, the upper port of the pilot stays closed. The pilot exhausts only when it repositions the main valve. As inlet pressure drops below setpoint, the pilot control spring overcomes the diaphragm force stroke the valve plug down close the lower port and open the upper port. Force from the 2

3 DIAPHRAM AND PLUG ASSEMBLY MAIN SPRING TYPE 6358EB PILOT INLET PRESSURE LOADING PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE W7350 Figure 2. Type EZR Relief Valve or Backpressure Regular Operational Schematic main spring, along with pilot loading pressure, pushes the diaphragm and plug assembly on the knife edged seat, producing tight shuff. Pilot Descriptions The following pilot configurations are available for the Type EZR relief valve or backpressure regular. Relief Valve The Type EZR relief valve uses the Types 6358B, 6358EB, and 6358EBH relief pilots. The pilot bleeds constantly while the relief valve is in operation. The pilot does not bleed when inlet pressure is below set pressure. The pilot exhaust can be connected directly the main valve exhaust pipe if the pilot connection and the exhaust pipe are designed prevent significant backpressure buildup during full-flow conditions. The pilot restriction code is indicated by a letter stamped on the botm of the pilot body: an H for the yellow, small-diameter, high gain restriction (standard); S for the red, medium diameter, medium gain restriction; and L for the blue, large-diameter, low gain restriction. The high gain restriction has the lowest buildups and fastest speed of response. Type 6358B Set pressure range from psig (1,4 8,6 bar) in two ranges. This pilot is available with a high, medium, or low gain restriction. Type 6358EB Set pressure range of psig (5,2 24,1 bar) in three ranges. This pilot is available with a high or low gain restriction. Type 6358EBH Set pressure range of psig (17,2 41,4 bar) in two ranges. This pilot is available with a high or low gain restriction. Backpressure Regular The Type 6358 is a low bleed pilot, so it only exhausts while it is repositioning the main valve. There is no constant bleed with this construction. This minimizes dirt buildup in the pilot. The Type 6358 has a set pressure range of psig (1,4 8,6 bar) in two ranges. The Types 6358B, 6358EB, and 6358EBH pilots can be used in backpressure applications. Pilot exhaust can be piped in the downstream system when no bleed is required. 3

4 Optional Travel Indicar The travel indicar responds with the precise movement of the diaphragm and plug assembly show actual valve position. A travel indicar can be used for in-line inspection and troubleshooting, remote stem positioning and alarming. Optional Inlet Strainer The stainless steel inlet strainer is designed with holes smaller than the cage slots prevent pipeline debris from becoming trapped in the main valve body. Once trapped in the body, the debris can clog the cage slot affecting shuff performance. Inlet strainers are typically not used on relief valves because debris can clog the strainer, restricting the flow through the body. Optional Pilot Supply Filter The Type 252 pilot supply filter prevents pipeline debris from entering the pilot; a primary cause of pilot clogging. The aluminum body is rated for 2150 psig (148 bar) and the stainless steel body for 2 psig (190 bar). Both are available in standard or extended length with a pipe plug or a drain valve. When the upstream system is free of debris, the Type EZR may be installed without a filter. Pilot supply filters are not typically used on relief valves because debris can plug the filter, hampering pilot operation. MAIN VALVE BODY SIZE 2, 3, 4, and 6-inch (DN 50, 80,, and 150) 1, 2, 3, 4, and 6-inch (DN 25, 50, 80,, and 150) Table 1. Main Valve Body Sizes, End Connection Styles, and Structural Design Ratings (1) MAIN VALVE BODY MATERIAL Cast iron WCB Steel E ND CONNECTION STYLES( 1) S TRUCTURAL DESIGN RATING(2) N PT (2-inch only) 400 psig (27,6 bar) A NSI Class 125B FF 200 psig (13,8 bar) A NSI Class 250B RF psig (34,5 bar) N PT or SWE (1 and 2-inch only) 1480 psig (102 bar) A NSI Class 150 RF 285 psig (19,6 bar) A NSI Class 300 RF 740 psig (51,0 bar) A NSI Class 600 RF or BWE 1480 psig (102 bar) 1. Ratings and end connections for other than standard can usually be provided. Contact your Fisher Sales Representative or Sales Office for assistance. 2. See tables 3, 5, 6, and 7 for diaphragm materials and additional pressure ratings. MAIN VALVE BODY SIZE, INCH (DN) 1 (25) 2 (50) 3 (80) 4 () 6 (150) MAIN SPRING PART NUMBER AND COLOR Table 2. Main Valve Minimum Differential Pressures (1) MINIMUM DIFFERENTIAL, PERCENT OF CAGE CAPACITY, PSID ( b ar d) For 90% Capacity For % Capacity % Trim 60% Trim 30% Trim % Trim 60% Trim 30% Trim 19B2399X012, White ( 2) 19 (1,3 ) 19 (1,3) 22 (1,5) 19 (1,3) 20 (1,4) 24 (1,7) 19B2400X012, Light Blue 28 (1,9) 28 (1,9) 35 (2,4) 28 (1,9) 28 (1,9) 41 (2,8) 19B2401X012, Black ( 3) 40 (2,8 ) 41 (2,8) 47 (3,2) 40 (2,8) 42 (2,9) 70 (4,8) 19B0951X012, ( 2) 13 (0,9 ) 17 (1,2) 24 (1,7) 13 (0,9) 17 (1,2) 24 (1,7) 18B2126X012, 16 (1,1) 21 (1,5) 29 (2,0) 20 (1,4) 25 (1,7) 30 (2,1) 18B5955X012, Red ( 3) 23 (1,6 ) 28 (1,9) 30 (2,1) 30 (2,1) 31 (2,1) 32 (2,2) T 14184T0012, ( 2) 14 (0,97 ) 14 (0,97) 17 (1,2) 18 (1,2) 18 (1,2) 19 (1,3) 19B0781X012, Light Blue 15 (1,0) 15 (1,0) 18 (1,2) 21 (1,4) 21 (1,4) 22 (1,5) 19B0782X012, Black ( 3) 26 (1,8 ) 26 (1,8) 27 (1,8) 33 (2,3) 33 (2,3) 33 (2,3) T 14184T0012, ( 2) 10 (0,69 ) 11 (0,76) 12 (0,83) 18 (1,2) 20 (1,4) 20 (1,4) 18B8501X012, 14 (0,9) 15 (0,9) 17 (1,2) 22 (1,5) 24 (1,7) 24 (1,7) 18B8502X012, Red ( 3) 20 (1,4 ) 24 (1,7) 29 (2,0) 30 (2,1) 30 (2,1) 30 (2,1) 19B0364X012, ( 2) 8 (0,6) 9 (0,6) 10 (0,69) 10 (0,69) 10 (0,69) 13 (0,9) 19B0366X012, 15 (1,0) 15 (1,0) 16 (1,1) 17 (1,2) 19 (1,3) 20 (1,4) 19B0365X012, Red() 3 16 (1,1 ) 18 (1,3) 19 (1,3) 20 (1,4) 24 (1,7) 24 (1,7) 1. See table 1 for structural design ratings, table 3 for pilot ratings, and table 7 for maximum pressure ratings. 2. The white and yellow springs are only recommended for inlet pressures under psig (6,9 bar). 3. The red and black springs are only recommended for inlet pressures over psig (34,5 bar). 4

5 PILOT TYPE 6358 and 6358B 6358EB 6358EBH Gas Temperature (for lower temperatures contact your local Sales Office or Representative) General Applications Heavy Particle Erosion Natural Gas With: Table 4. Diaphragm Material Selection and Pressure Ratings 17E67 NITRILE (NBR) 17E68 NITRILE (NBR) 17E97 NITRILE (NBR) 17E88 FLUOROELASTOMER (FKM) F ( C) F ( C) F ( C) F ( C) (1) Best for low medium pressure conditions, such as distribution service or low medium pressure industrial service. Fair Up 3% aromatic h ydrocarbon content( 2) Excellent 3-15% aromatic h ydrocarbon content( 2) Fair 15-50% aromatic h ydrocarbon content( 2) Not recommende d Up 3% H2S (hydroge n sulfide or sour gas) Up 3% kene Up 10% alcohol Up 3% synthetic lube RELIEF SET PRESSURE RANGE, PSIG ( b ar) (1,4 2,8) (2,4 8,6) Table 3. Set Pressure Ranges, Pilot Pressure Ratings, and Pilot Information (1) (5,2 9,7) (9,0 13,8) (12,4 24,1) (17,3 31,0) ( 27,6 41,4) (2) Part Number 1E K B1261X012 17B1263X012 17B1264X012 17B1263X012 17B1264X012 Good Fair Good Fair Color Red Blue Red Blue Red Best for cold temperatures. Fair Good Poor Not recommende d Good Fair Good Fair 1. For differential pressures above 400 psig (27,6 bar) diaphragm temperature is limited 150 F (66 C). 2. The aromatic hydrocarbon content is based on percent volume. PILOT CONTROL INFORMATION Wire Diameter, Inches (cm) (0,376) (0,475) (0,572) (0,665) (0,747) (0,685) (0,747) Free Length, Inches (cm) (5,08) (5,56) Best for high pressure conditions, i.e. transmission service or high pressure industrial service. It is also the best for abrasive or erosive service applications. Excellent Excellent Good Poor Good Fair Good Fair Maximum Operating Pressure, Psig (bar) Maximum Emergency Pressure, Psig (bar) 150 ( 10,3) 150 (10,3) (9,40) (9,78) ( 10,7) 650 ( 44,8) (51,7) 1. See the Main Valve Body Sizes, End Connections, Structural Design Ratings tables, and the Main Valve Diaphragm and Spring Pressure Ratings table for additional pressure ratings. 2. Fluoroelasmer diaphragms are limited 450 psig (31,1 bar) (9,78) (10,7) Best for natural gas having aromatic hydrocarbons. It is also the best for high temperature applications. Good Excellent Excellent Excellent Good Fair Fair Good STYLE (IMPRINT) Imprint STYLE Ink Mark Table 5. Diaphragm Imprint Codes MATERIA L Imprint Ink Mark 1 17E E E E97 DIAPHRAGM MATERIALS 17E67 - (distribution or low pressure industrial) 17E68 - (low temperature) 17E88 - (high aromatic hydrocarbon content resistance) 17E97 - (high-pressure and/or erosion resistance) MATERIAL (IMPRINT) MATERIAL (INK MARK) Figure 3. Diaphragm Markings 1 STYLE (INK MARK) (MAY BE IN EITHER LOCATION) DOME IDENTIFICATION STYLE (INK MARK) (MAY BE IN EITHER LOCATION) 5

6 Table 6. Main Valve Maximum Pressure Ratings, Diaphragm Selection Information, and Main Spring Selection (1) BODY SIZE, INCHES (DN) 1 (25) 2 (50) 3 (80) 4 () DIAPHRAGM MATERIAL 17E68 Low temperature 17E97 High-pressure and/or erosion resistance 17E88 High aromatic hydrocarbon content resistance 17E67 Distribution and low pressure industrial 17E68 Low temperature 17E97 High-pressure and/or erosion resistance 17E88 High aromatic hydrocarbon content resistance 17E67 Distribution and low pressure industrial 17E68 Low temperature 17E97 High-pressure and/or erosion resistance 17E88 High aromatic hydrocarbon content resistance 17E67 Distribution and low pressure industrial 17E68 Low temperature 17E97 High-pressure and/or erosion resistance 17E88 High aromatic hydrocarbon content resistance 17E68 Low temperature MAXIMUM OPERATING INLET PRESSURE MAXIMUM OPERATING DIFFERENTIAL PRESSURE MAXIMUM EMERGENCY INLET AND DIFFER-ENTIAL PRESSURE MAIN SPRING COLOR psig (6,9 bar) White 460 psig (31,7 bar) 400 psid (27,5 bar d) 460 psid (31,7 bar d) Light Blue psig (34,5 bar) psid (72,4 bar d) Light Blue psig (72,4 bar) 800 psig (55,2 bar d) psid (72,4 bar d) B lack(2) psig (34,5 bar) ( 3) psid (51,7 bar d ) Light Blue psig (51,7 bar) ( 3) psid (51,7 bar d ) B lack(2) psig (6,9 bar) psig (34,5 bar) psid (51,7 bar d) psig (6,9 bar) 460 psig (31,7 bar) 400 psid (27,5 bar d) 460 psid (31,7 bar d) psig (34,5 bar) psid (72,4 bar d) psig (72,4 bar) 800 psid (55,2 bar d) psid (72,4 bar d) R ed(2) psig (34,5 bar) ( 3) psid (51,7 bar d ) psig (51,7 bar) ( 3) psid (51,7 bar d ) R ed(2) psig (6,9 bar) 360 psig (24,8 bar) 300 psid (20,7 bar d) psid (51,7 bar d) Light Blue psig (6,9 bar) 360 psig (24,8 bar) 300 psid (20,7 bar d) Light Blue psig (34,5 bar) psid (72,4 bar d) Light Blue psig (72,4 bar) 800 psid (55,2 bar d) psid (72,4 bar d) B lack(2) psig (34,5 bar) ( 3) psid (51,7 bar d ) Light Blue psig (51,7 bar) ( 3) psid (51,7 bar d ) B lack(2) psig (6,9 bar) 360 psig (24,8 bar) 300 psid (20,7 bar d) psid (51,7 bar d) psig (6,9 bar) 360 psig (24,8 bar) 300 psid (20,7 bar d) psig (34,5 bar) psid (72,4 bar d) psig (72,4 bar) 800 psid (55,2 bar d) psid (72,4 bar d) R ed(2) psig (34,5 bar) ( 3) psid (51,7 bar d ) psig (51,7 bar) ( 3) psid (51,7 bar d ) R ed(2) psig (6,9 bar) 360 psig (24,8 bar) 300 psid (20,7 bar d) 17E97 psig (34,5 bar) psid (72,4 bar d) 6 (150) High-pressure and/or erosion resistance psig (72,4 bar) 800 psid (55,2 bar d) psid (72,4 bar d) R ed(2) 17E88 psig (34,5 bar) 3) psid (51,7 bar d ) High aromatic hydrocarbon content resistance psig (51,7 bar) 3) psid (51,7 bar d ) R ed(2) 1. See table 1 for main valve structural design ratings and table 3 for pilot ratings. 2. The red and black springs are recommended for applications where the maximum inlet pressures can exceed psig (34,5 bar). 3. For differential pressures above 400 psid (27,6 bar d) diaphragm temperatures are limited 150 F (66 C). DIAPHRAGM STYLE

7 7 Table 7. Pilot Information PILOT TYPE SET PRESSURE SPRING RANGE, AND PART NUMBER, PSIG ( OLOR, C r a b ) ET PRESSURE S ) 1 (, SIG ( P r a b ) BUILDUP OVER SET PRESSURE NEEDED TO BEGIN OPENING MAIN ALVE V ) 2 ( ( PSIG, r a b ) BUILDUP OVER SET PRESSURE NEEDED TO FULLY OPEN MAIN ALVE V ) 3 ( ( PSIG, r a b ) PRESSURE DROP BELOW SET PRESSURE NEEDED TO RESEAT PILOT, SIG ( P r a b ) ,8) (1,4 1E (1,4) (1,7) (2,1) (2,8) ,6) (2,4 1K Red (2,8) (4,1) (5,5) (6,9) (8,6) (0,10) (0,10) (0,10) (0,11) (0,11) (0,17) (0,17) (0,19) 6358B ,8) (1,4 1E (1,4) (1,7) (2,1) (2,8) ,6) (2,4 1K Red (2,8) (4,1) (5,5) (6,9) (8,6) (0,10) (0,10) (0,10) (0,11) (0,11) (0,17) (0,17) (0,19) 6358EB ,7) (5,2 17B1261X (5,2) (6,9) (8,6) (9,7) (0,12) (0,12) (0,17) (0,24) (0,28) ,8) (9,0 17B1263X012 Blue (9,7) (10,3) (12,1) (13,8) (0,24) (0,31) (0,38) (0,45) (0,52) ,2) (12,4 17B1264X012 Red (13,8) (15,5) (17,2) (19,0) (20,7) (22,4) (24,1) (0,38) (0,38) (0,38) (0,38) (0,55) (0,55) (0,59) (0,59) (0,59) (0,62) (0,62) 6358EBH ) (4 31,0) 17,3 ( ) (4 17B1263X012 Blue (24,1) (25,9) (27,6) (29,3) (31,0) (0,41) (0,41) (0,45) (0,48) (0,52) (0,66) (0,66) (0,69) (0,72) (0,76) (0,41) (0,41) (0,41) (0,41) (0,41) ) (4 41,4) 27,6 ( ) (4 17B1264X012 Red (31,0) (34,5) (37,9) (41,4) (0,52) (0,55) (0,59) (0,62) (0,79) (0,83) (0,90) (0,97) (0,41) (0,41) (0,41) (0,41) discharge. starts pilot the which at pressure the as defined is pressure Set 1. flow. audible starts valve main the which at pressure set the over buildup pressure inlet the or valve main the of pressure point Crack 2. flow capacity. wide-open achieve valve main the for pressure set the over buildup pressure Inlet 3. bar). (31,0 psig 450 limited is diaphragms fluoroelasmer for pressure maximum operating The 4.

8 NONRESTRICTIVE VENTS AND PIPING ALTERNATE PILOT EXHAUST PIPING TYPE EZR MAIN VALVE BLOCK VALVE TYPE EZR MAIN VALVE BLOCK VALVE PILOT CONTROL LINE BLOCK VALVE ALTERNATE CONTROL LINE CONTROL LINE PILOT HAND VALVE ALTERNATE PILOT EXHAUST PIPING MAIN PRESSURE LINE B2615 Figure 4. Relief Pressure Control Installation Schematics Figure 5. Backpressure Control Installation Schematics Installation main valve body or pilot. Also, make sure that all tubing and piping are clean and unobstructed. Personal injury, equipment damage, or leakage due escaping gas or bursting of pressure-containing parts may result if the Type EZR is installed where its capabilities can be exceeded or where conditions exceed any ratings of the adjacent piping or connections. To avoid this, install a Type EZR relief valve or backpressure regular where: Service conditions are within unit capabilities (including those in the Specifications section). Service conditions are within applicable codes, regulations, or standards. Additionally, physical damage the relief valve or backpressure regular could break the pilot off the main valve, causing personal injury and property damage due escaping gas. To avoid such injury or damage, install the unit in a safe location. 1. Only personnel qualified through training and experience should install, operate, and maintain a relief valve or backpressure regular. Before installation, make sure that there is no damage, or debris in the When installing Type EZR trim in an existing Fisher E-body, damage can result if flow is not in the correct direction. Look at the body web confirm that flow is in the correct direction up through the center of the cage and down through the cage slots. Change the existing flow arrow if necessary. After assembly, check for shuff and leakage atmosphere. 2. A Type EZR relief valve or backpressure regular may be installed in any orientation, as long as flow through it matches the direction of the arrow on the main valve body. 3. Figure 1 shows the standard mounting position. Rotate the bonnet (key 2, figure 8) or the pilot (figures 15, 16, or 17) for other mounting positions. 4. An upstream control line is required and must be installed as shown in figure 5 drawing in the 1/4- inch NPT connection in the pilot body assembly (figure 16), if required. Do not make the upstream pipeline connection in or directly downstream of a 8

9 turbulent area such as a swage, or elbow. A filter may be installed in the control line upstream of the pilot provide clean operating gas. Inspect and clean this filter regularly make sure it is not plugged, which can prevent proper pilot operation. 5. Apply a good grade of pipe compound the male pipeline threads for a screwed body, or use suitable line gaskets for a flanged body. Use approved piping procedures when installing the regular. When used in relief valve service, the Type EZR main valve and pilot both exhaust gas. In hazardous or flammable gas service, personal injury, death, or property damage may occur due fire or explosion of vented gas that has accumulated. To prevent such injury or damage, provide piping or tubing vent the gas a safe location. The exhaust piping must be designed and installed guard against excessive flow restriction. This piping must be protected against condensation or debris that could clog it. For safety during shutdown, vent valves are required immediately upstream and downstream of the main valve on a backpressure or bypass installation. 6. If system operation during maintenance is required, install isolating and vent valves as needed. 7. If the vent assembly (key 16, figure 13, 14, or 16) remains in the pilot body (key 1, figure 13 or 15), then it must be pointed down if possible or otherwise protected. If the exhaust is be piped the main valve exhaust or remotely vented, remove the vent assembly and install tubing or piping in the 1/4-inch NPT pilot exhaust connection. Protect the open end of the exhaust pipe by installing a screened vent cap. 8. The pilot spring case vent (key 16, figure 13, 14 or 16) must be kept open atmospheric pressure. Protect the vent assembly from icing, moisture, or debris that may cause blockage, as required. To change the vent orientation, twist the vent assembly in the spring case. To remotely vent the pilot spring case, remove the vent assembly and install tubing or piping in the 1/4-inch NPT spring case vent tapping. Protect the open end of the vent line by installing a screened vent cap. Startup and Shutdown If pressure is introduced first the main valve before the pilot, the main valve may go wide-open and subject the downstream system full inlet pressure. Note The maximum inlet pressure for specific constructions are given in tables 1, 2, and 6 or 7. Use a pressure gauge monir inlet pressure during startup. Relief Installation (Figure 4) Startup 1. Close vent valve (not shown). 2. Slowly open block valve and hand valve, if installed. 3. Adjust the pilot as needed. Shutdown 1. Close block valve and hand valve, if installed. 2. Slowly open vent valve (not shown). Backpressure Installation (Figure 5) Startup 1. Close upstream and downstream vent valves (not shown). 2. Slowly open upstream block valve first and then slowly open downstream block valve. 3. Adjust the pilot as needed. If the pilot is not piped downstream, make sure the pilot exhaust is pointed in the correct direction. Shutdown 1. Close upstream block valve first and then close the downstream block valve. 2. Open downstream and upstream vent valves (not shown). Pilot Adjustment (See figure 13 or 14) If set pressure adjustment is necessary, monir relief (inlet) pressure with a gauge during the adjustment procedure. Remove the pilot closing cap (key 12) and loosen the locknut (key 11). Turn the adjusting screw (key 10) in the spring case increase the set 9

10 pressure. Turn the adjusting screw out of the spring case decrease the set pressure. When adjustment is completed, tighten the locknut lock the adjusting screw in position and replace the pilot closing cap. Maintenance Relief valve and backpressure regular parts are subject normal wear and must be inspected periodically and replaced as necessary. Due the care Fisher takes in meeting all manufacturing requirements (heat treating, dimensional lerances, etc.), use only replacement parts manufactured or furnished by Fisher. Also when lubrication is required, use a good quality lubricant and sparingly coat the recommended parts. The frequency of inspection and replacement depends upon the severity of service conditions and upon applicable codes, government regulations, and company standards. Table 8 lists various regular problems and possible solutions. Avoid personal injury or damage property from sudden release of pressure or uncontrolled gas or other process fluid. Before starting disassemble, carefully release all pressures according the appropriate shutdown procedure. Use a gauge monir relief (inlet) pressure while releasing it. Type EZR Main Valve Maintenance Trim Parts Instructions are given for complete disassembly and assembly. Key numbers are referenced in figures 8 through 12 unless otherwise noted. monir inlet and outlet pressures while releasing these pressures. Note The regular may remain in the pipeline during maintenance procedures. Disassembly 1. Shutdown, isolate, and depressurize the main valve and pilot. 2. Remove the cap screws (key 3). Lift up and remove the bonnet (key 2) from the body (key 1). 3. Remove the diaphragm and plug assembly (key 9) and bonnet O-ring (key 28). 4. Pull out the cage (key 7), O-ring (key 8), and inlet strainer or strainer shim (if strainer is not used) (key 23). 5. Clean parts and replace if necessary. Converting a Fisher E-Body Type EZR: Remove all trim parts from the main valve and clean the body interior. Then follow procedure in Assembly section convert a Fisher E-body a Type EZR. When installing a Type EZR trim package make sure flow is up through the center of the cage and down through the cage slots. In some cases, correct flow path is achieved by removing the body from the line and turning it around. If this is done, change the flow arrow indicate the correct direction. Damage may result if flow is not in the correct direction. After assembly, check the regular for shuff and leakage atmosphere. Assembly 1. Install the inlet strainer or shim (key 23) in the body (key 1). Avoid personal injury or damage property from sudden release of pressure or uncontrolled gas or other process fluid. Before starting disassemble, carefully release all pressures according the shutdown procedure. Use gauges Note For installation in a vertical orientation, lubricant can be applied the botm of the inlet strainer or shim (key 23) help hold parts in place while the cag assembly is installed. 10

11 Table 8. Maintenance Tips P ROBLEM POSSIBLE SOLUTION (SEE FIGURE 6 FOR PARTS LOCATION) Unit does not provide tight shuff when inlet pressure is below set pressure Main valve is wide-open when inlet pressure is below set pressure Gas escapes from pilot spring case Gas escapes from travel indicar Unit does not open when is above set pressure inlet pressure Inlet pressure rises higher than expected Relief valve opens properly then closes unexpectedly Check for: damage or improper installation of the main valve O-rings erosion or trapped debris on the cage and diaphragm surfaces damage or debris on the surfaces of the pilot plug and seat Check for: debris in the pilot or pilot debris in the main valve main valve and pilot diaphragms Replace diaphragm assembly supply filter for damage Replace indicar stem O-ring, if indicar is not desired, convert a non-travel indicar assemb Check for: clogged main valve inlet strainer (if used) or pilot supply filter (if used) pilot icing or blockage, Types 6358B, 6358EB, and 6358EBH pilots should main valve diaphragm damage proper control line connection, and be exhausting gas make sure control line hand valve (if used) is open Check for: correct main valve sizing clogged main valve inlet strainer restrictive inlet or outlet piping plugged or restricted control line proper control line location (should not be installed in or directly downstream of an elbow or swage) proper springs in the main valve and pilot Check for: icing inside the pilot 2. Lightly lubricate and install the cage O-ring (key 8). 3. Apply lubricant lightly all O-rings or the mating part before installing them. bonnet (key 2). See Travel Indicar Assembly Maintenance for maintenance. 7. Install the bonnet (key 2) in proper orientation. 4. Install the cage (key 7) and lightly lubricate and install the bonnet O-ring (key 6). Note For the 6-inch, secure the cage (key 7) the restricr plate (key 71) using the cap screws (key 126), using a rque of foot-pounds (14 16 N m). 5. Lubricate the p and botm of the outer edge (bead area) of the diaphragm and place diaphragm and plug assembly (key 9) on the cage (key 7). 6. If travel indicar was removed, lightly lubricate the travel indicar assembly threads and screw it in the Make sure use a Type EZR bonnet. The Type EZR bonnet is NOT interchangeable with other Fisher E-body bonnets. Installing an improper bonnet can result in stem assembly breakage and unit failure. The bonnet can be identified by the EZR markings on the p. 8. Lubricate cap screws (key 3) and secure the bonnet (key 2), using an even criss-cross pattern. It may be necessary push down on the bonnet start the cap screws. Tighten cap screws the proper rque (see table 9). 11

12 DIAPHRAGM (KEY 9) BOTTOM PLUG (KEY 11) FLANGED LOCKNUT (KEY 13) O-RING (KEY 70) TOP PLUG (KEY 5) O-RING (KEY 14) O-RING (KEY 10) W7394 Figure 6. Diaphragm and Plug Assembly Components Diaphragm and Plug Assembly Maintenance The diaphragm and plug assembly can be replaced as a single unit (a diaphragm cartridge), or individual components within the assembly can be replaced. When replacing individual components, inspect each component for damage and wear, and replace parts as needed. Key numbers for the following assembly and disassembly procedure are referenced in figures 6 and Place a screwdriver or similar ol through the hole in the p plug (key 5). 2. Remove the flanged locknut (key 13) from the botm plug (key 11). This loosens the entire assembly. Note On 1-inch bodies, remove the socket head screw (key 129) and lock washer (key 130) from the botm plug. 3. Remove the botm plug (key 11) and the botm plug O-ring (key 10). 4. Remove the diaphragm (key 9). 5. Remove the p plug O-rings (keys 14 and 70). 6. Check all components for damage or wear and replace as necessary. 7. When reassembling, be sure lubricate all O-rings before installing. 8. Hold the p plug (key 5). Place the parts on the p plug in the following order. O-Ring (key 14) O-Ring (key 70) Diaphragm (key 9) O-Ring (key10) Botm Plug (key 11) Flanged Locknut (key 13) 9. Reassemble in the reverse order. Tighten flange locknut (key 13) the proper rque (see table 9). Travel Indicar Assembly Maintenance Travel indicar assembly key numbers are referenced in figures 7, 8, and 12. The indicar assembly can be removed and installed without removing the bonnet (key 2) from the body (key 1). Travel indicar maintenance is performed for two reasons: a. When damaged or worn parts need replacing. b. When travel indicar is removed and replaced with a travel indicar plug assembly. plug. Avoid personal injury or damage property from sudden release of pressure or uncontrolled gas or other process fluid. Before starting disassemble, carefully release all pressures according the shutdown procedure. Use gauges monir inlet, loading, and outlet pressures while releasing these pressures. 1. Remove the indicar protecr (key 22, figure 8) and indicar cover (key 21). 2. Remove the first hex nut (key 4) and the indicar washer (key 20). 3. Unscrew the second hex nut (key 4) the p of the indicar stem (key 15). Do not remove. 4. Use a wrench remove indicar fitting (key 19). 5. Lift out travel indicar assembly. If replacing travel indicar with travel indicar plug, skip step Compress the main spring (key 12). Remove the second hex nut (key 4). Parts will separate easily when the hex nut is removed. 12

13 INDICATOR FITTING (KEY 19) O-RING (KEY 18) UPPER SPRING SEAT (KEY 17) MAIN SPRING (KEY 12) INDICATOR STEM (KEY 15) INDICATOR COVER (KEY 21) HEX NUTS (KEY 4) BACKUP RINGS (KEY 16) W7400_1 INDICATOR WASHER (KEY 20) INDICATOR O-RING (KEY 6) Figure 7. Travel Indicar Parts WASHER (KEY 79) (6-INCH SIZE ONLY) Table 9. Torque Values BODY SIZE, INCHES Cap Screws TORQUE, FOOT-POUNDS (N M) Flange Lock Nut Indicar Fitting Indicar Plug 1 (25) ( ) 4 6 (5,4 10,8) ( ) ( ) 2 (50) (75 95) 6 8 (8 10,8) ( ) ( ) 3 (80) 130 ( ) (25,8 33,9) ( ) ( ) 4 () ( ) (25,8 33,9) ( ) ( ) 6 (150) ( ) 50 (68 136) ( ) ( ) 7. Slide the indicar stem (key 15) out of the indicar fitting (key 19). The main spring (key 12) and upper spring seat (key 17) will be free. 8. If necessary, use the indicar stem (key 15) pry the backup rings (key 16) and O-ring (key 18) out of the indicar fitting (key 19). 9. Check the indicar fitting O-ring (key 6). Lubricate and replace if necessary. 10. To replace travel indicar parts, lubricate all O-rings, backup rings, and threads. To reassemble, hold the indicar stem (key 15) and place the parts on the stem in the following order: Washer (key 79 for 6-inch size only) Main Spring (key 12), small end first Upper Spring Seat (key 17), make sure place the large end ward the spring First Backup Ring (key 16) O-Ring (key18) Second Backup Ring (key 16) Indicar Fitting (key 19), the backup rings (key 16) and O-ring (key 18) should slide in the indicar fitting and the small end of the upper spring seat (key 17) should slide in the indicar fitting. First Hex Nut (key 4) Indicar Washer (key 20) Second Hex Nut (key 4) Install the indicar fitting (key 19) in the bonnet (key 2, figure 8), tighten using the proper rque (see table 9). To set the travel indicar, hold the indicar cover (key 21) next the indicar fitting (key 19). Screw the hex nuts (key 4) and the indicar washer (key 20) down on the indicar stem (key 15) until the washer is even with the lowest marking on the indicar cover. Lightly lubricate the indicar cover threads and install. Replace the indicar protecr (key 22). To replace the travel indicar with the non-travel indicar option on a 2-inch body, lubricate all O-rings and threads. Hold the stem (key 15) and install parts on the stem in the following order: Main Spring (key 12) Upper Spring Seat (key 17) Machine Screw (key 83), insert and tighten Indicar Plug (key 19) Install the indicar plug (key 19) in the bonnet using the proper rque (see table 9). To replace the travel indicar with the non-travel indicar option on a 1, 3, 4, or 6-inch body, place the main spring (key 12) in the bonnet and install the indicar plug (key 19) using the proper rque (see table 9). 13

14 6358 Series Pilots Key numbers are referenced in figure 12, 13, 14 and 15 unless otherwise noted. Unless replacing or removing the body assembly (key 1), the pilot may remain on the pipe nipple (key 29, figure 15) during maintenance. Avoid personal injury or damage property from sudden release of pressure or uncontrolled gas or other process fluid. Before starting disassemble, carefully release all pressures according the shutdown procedure. Use gauges monir inlet, loading, and outlet pressures while releasing these pressures. Disassembly 1. If necessary check the outlet end of the body cavity and the seating surfaces for moisture or debris, remove the body plug (key 3) and body plug O-ring (key 13) from the body (key 1). 2. Remove the closing cap (key 12), loosen the locknut (key 11), and back out the adjusting screw (key 10) until compression is removed from the control spring (key 7). 3. Remove the machine screws (key 17) and separate the spring case (key 2) from the body assembly. Remove the control spring seat (key 8), the control spring (key 7), and, if used, the diaphragm limiter (key 40). 4. Lift out the diaphragm assembly (key 5) and valve plug (key 4). Check the stem guide (key 9) and restriction (key 20) for damage or plugging. The Type 6358 has a restriction plug, not a restriction. 5. If necessary replace the diaphragm assembly, the valve plug (key 4), the valve spring (key 14), or the stem O-ring (key 37), remove the connecr cap (key 6) and connecr cap O-ring or gasket (key 36) from the p of the diaphragm assembly. Assembly 1. If removed, install the body plug O-ring (key 13) over the body plug (key 3), and install the body plug in the body (key 1). 2. Install the stem guide (key 9), if removed, and make sure install the connecr cap O-ring or gasket (key 36) between the body (key 1) and the stem guide. Note In step 3, if installing a different size restriction, be sure remove the code letter on the botm of the pilot and indicate the new letter. 3. If the restriction or restriction plug (key 20) was removed, coat the threads with lubricant and install it. 4. If replacing the stem O-ring (key 37), sparingly apply lubricant and install the O-ring over the valve plug (key 4). 5. If removed, install the valve plug (key 4) and valve spring (key 14) in the diaphragm assembly (key 5). Install a replacement connecr cap O-ring or gasket (key 36) on the diaphragm assembly, and secure with the connecr cap (key 6). 6. Install the diaphragm assembly (key 5) and push down on it see if the valve plug (key 4) moves smoothly. The diaphragm assembly should stroke approximately 1/16-inch (2 mm) after the valve plug contacts the port. Note In step 7, if installing a control spring of a different set pressure range, be sure remove the set pressure range on the spring case and indicate the new range. 7. Stack the control spring (key 7), the control spring seat (key 8), and, if used, the diaphragm limiter (key 40) on the diaphragm assembly (key 5). Make sure install the diaphragm limiter beveled side up. 8. Install the spring case (key 2) on the body (key 1) with the vent assembly (key 16) oriented prevent clogging or entrance of moisture. Install the machine screws (key 17) and tighten in a crisscross pattern, using 5 7 foot-pounds (7 9 N m) of rque. 9. Replace the closing cap gasket (key 19) if necessary, and install the closing cap (key 12). When all maintenance is complete, refer the Startup and Shutdown section put the relief valve or backpressure regular in operation and adjust the pressure setting. Parts Ordering When corresponding with your Fisher Sales Office or Sales Representative about this unit, provide the serial number or FS number from the nameplate (key 24, figure 8). When ordering replacement parts, reference the eleven digit part number of each part. 14

15 Parts List Type EZR Main Valve (figures 8-12) Parts Kits Diaphragm Cartridge and O-Rings 1-inch (DN 25) 17E68 17E97 17E88 2-inch (DN 50) 17E67 17E68 17E97 17E88 3-inch (DN 80) 17E67 17E68 17E97 17E88 4-inch (DN ) 17E67 17E68 17E97 17E88 6-inch (DN 150) 17E97 17E68 17E88 Diaphragm and O-Rings (Included are keys 6, 8, 9, 10, 13, 14, 18, 28, and 70) 1-inch (DN 25) 17E68 17E97 17E88 2-inch (DN 50) 17E67 17E68 17E97 17E88 3-inch (DN 80) 17E67 17E68 17E97 17E88 4-inch (DN ) 17E67 17E68 17E97 17E88 6-inch (DN 150) 17E97 19B2408X022 REZRX00CS12 19B2408X042 REZRX00CS22 18B5959X012 18B5959X022 18B5959X032 REZRX00CS32 18B9884X022 18B9884X032 18B9884X042 REZRX00CS42 18B8508X022 18B8508X032 18B8508X042 REZRX00CS62 19B2840X012 19B2840X032 19B2412X022 REZRX000S12 19B2412X042 REZRX000S22 18B5952X012 18B5952X022 18B5952X032 REZRX000S32 18B9885X022 18B9885X032 18B9885X042 REZRX000S42 18B8507X022 18B8507X032 18B8507X042 REZRX00CS62 1 Valve Body See table 11 2 Bonnet Assembly 39B2403X022 38B2122X022 38B5963X022 4-inch (DN ) body 38B2133X022 49B0355X022 3 Cap Screw (4 required) 1R (8 required) 1A (8 required) 1A inch (DN ) body (8 required) 1A (12 required) 1U Hex Nut (2 required) 1 and 2-inch (DN 25 and 50) body 1H , 4, and 6-inch (DN 80,, and 150) body 1L Top Plug 29B2404X012 28B2130X012 28B8511X012 4-inch (DN ) body 28B5964X012 39B0370X012 Key Description Part Number 6* O-Ring 4-inch (DN ) body 7 Cage 4-inch (DN ) body 8* Cage O-Ring 4-inch (DN ) body 9* Diaphragm 17E97, high-pressure 17E67, general purpose 17E68, low temperature 17E97, high-pressure 17E88 17E67, general purpose 17E68, low temperature 17E97, high-pressure 17E88 4-inch (DN ) body 17E67, general purpose 17E68, low temperature 17E97, high-pressure 17E88 6-inch (DN ) body 17E97 10* O-Ring 3 and 4-inch (DN 80 and ) body 6-inch (DN ) body 11 Botm Plug 4-inch (DN ) body 18B3438X012 1N B3438X012 1N A8931X012 10A8931X052 10A8931X012 10A8931X052 10A3800X012 1R B2413X012 37B9748X012 48B5961X012 48B2135X012 49B0353X012 14A5713X012 13A2351X012 10B4428X012 10B4428X022 10B4366X012 10B4366X022 10B4373X012 10B4373X022 1H H8623X B2397X012 29B2715X022 29B1909X012 28B2123X052 29B2715X012 39B2726X022 38B9886X012 39B2726X012 38B8512X022 38B5965X012 38B8509X012 38B5965X042 39B1154X012 49B0357X012 1E L E L J4888X0052 1J4888X A8741X052 11A8741X012 19B2407X012 18B2127X012 18B8513X012 18B5966X012 29B0763X012 *Recommended Spare Part 15

16 Key Description Part Number 12 Main Spring White 19B2399X012 Light Blue 19B2400X012 Black 19B2401X012 19B0951X012 18B2126X012 Red 18B5955X012 T14184T0012 Light Blue 19B0781X012 Black 19B0782X012 4-inch (DN ) body T14184T B8501X012 Red 18B8502X012 19B0364X012 19B0366X012 Red 19B0365X Flanged Locknut 18B2139X012 3 and 4-inch (DN 80 and ) body 15A7591X012 19B0361X012 14* Top Plug O-Ring 13A1584X052 13A1584X022 13A1584X052 13A1584X022 3 and 4-inch (DN 80 and ) body 10A3803X062 10A3803X032 T12050X0012 T12050X Stem 18B2125X012 with travel indicar 18B2125X012 without travel indicar 18B5957X012 3 and 4-inch (DN 80 and ) body 28B5967X012 29B0366X Backup Ring (2 required) 1 and 2-inch (DN 25 and 50) body 1N , 4, and 6-inch (DN 80,, and 150) body 1J Upper Spring Seat 18B2129X012 with Travel Indicar 18B2129X012 without Travel Indicar 18B5958X012 3 and 4-inch (DN 80 and ) body 18B5968X012 29B0764X012 18* O-Ring 1 and 2-inch (DN 25 and 50) body 1H2926X0032 1H2926X0022 3, 4, and 6-inch (DN 80,, and 150) body 1D N Indicar Fitting 1 and 2-inch (DN 25 and 50) body 28B2128X012 3 and 4-inch (DN 80 and ) body 28B5969X012 39B0358X Indicar Plug 19B2409X012 28B2137X012 3 and 4-inch (DN 80 and ) body 28B5970X012 39B0767X Indicar Washer 1 and 2-inch (DN 25 and 50) body 18B2138X012 3, 4, and 6-inch (DN 80,, and 150) body 18B8503X012 Key Description Part Number 21 Indicar Cover 1 and 2-inch (DN 25 and 50) body 14A6759X012 3 and 4-inch (DN 80 and ) body 19B2270X012 14A5647X Indicar Protecr 1 and 2-inch (DN 25 and 50) body 24B1301X012 3, 4, and 6-inch (DN 80,, and 150) body 29B2269X Inlet Strainer 20B8004X012 10B4409X012 20B4367X012 4-inch (DN ) body 20B4374X012 20B7853X Strainer Replacement Shim 13B8061X012 13B8062X012 13B8063X012 4-inch (DN ) body 13B8064X012 13B8065X Nameplate Flow Arrow 1V Drive Screw (5 required) 1A * O-Ring 19B2838X012 19B2838X022 18B2124X012 18B2124X022 18B8514X012 18B8514X022 4-inch (DN ) body 18B2140X012 18B2140X022 19B0359X012 10A3591X Pilot Supply Pipe Plug (2 required) 1A Bonnet Pipe Plug 1A * O-Ring Nitrile 13A1584X052 Fluoroelasmer 13A1584X022 3 and 4-inch (DN 80 and ) body 10A3803X062 10A3803X032 T12050X0012 T12050X Restricr Plate For 60% Capacity Trim 19B2835X012 For 30% Capacity Trim 19B2836X012 For 60% Capacity Trim 18B2144X012 For 30% Capacity Trim 18B2145X012 For 60% Capacity Trim 28B8516X012 For 30% Capacity Trim 28B8517X012 4-inch (DN ) body For 60% Capacity Trim 28B8504X012 For 30% Capacity Trim 28B8505X012 For % Capacity Trim 49B0367X012 For 60% Capacity Trim 49B0368X012 For 30% Capacity Trim 49B0369X E-Ring, for Restricted Trim 19B2411X012 16A7882X012 18B8518X012 4-inch (DN ) body 18B8506X Washer (6-inch body only) 19B0362X Machine Screw (2-inch only) 18B5956X Cap Screw (4 required) (6-inch body only) 1L7325X Socket Head Screw 1D6170X Lock Washer 1K

17 BODY SIZE 1-inch (DN 25) 2-inch (DN 50) 3-inch (DN 80) 4-inch (DN ) 6-inch (DN 150) BODY MATERIAL WCB Steel Cast iron WCB Steel Cast iron WCB Steel Cast iron WCB Steel Cast iron WCB Steel Table 10. Type EZR Main Valve Body Part Numbers (Key 1) END CONNECTION STYLE Standard BODY STYLE Tapped Inlet (Pilot Supply) Tapped Inlet and Tapped Outlet NPT 2R B5668X SWE 2R B5668X Class 150 RF 2R B5669X032 14B5623X032 Class 300 RF 2R B5669X042 14B5623X042 Class 600 RF 2R B5669X052 14B5623X052 SCH 40 BWE 2R B6273X SCH 80 BWE 2R B6273X NPT 2R B0751X Class 125 FF 2R B0752X012 14B5834X012 Class 250 RF 2R B0752X022 14B5834X022 NPT 2R B0751X SWE 2R B0751X Class 150 RF 2R B0752X032 14B5834X032 Class 300 RF 2R B0752X042 14B5834X042 Class 600 RF 2R B0752X052 14B5834X052 SCH 40 BWE 2R B6274X012 14B5834X072 SCH 80 BWE 2R B6274X Class 125 FF 2R B0753X012 14B5835X012 Class 250 RF 2R B0753X022 14B5835X022 Class 150 RF 2R B0753X032 14B5835X032 Class 300 RF 2R B0753X042 14B5835X042 Class 600 RF 2R B0753X052 14B5835X052 SCH 40 BWE 2R B6275X012 14B5835X062 SCH 80 BWE 2R B6275X Class 125 FF 2R B0754X012 14B5836X012 Class 250 RF 2R B0754X022 14B5836X022 Class 150 RF 2R B0754X032 14B5836X032 Class 300 RF 2R B0754X042 14B5836X042 Class 600 RF 2R B0754X052 14B5836X052 SCH 40 BWE 2R B6276X SCH 80 BWE 2R B6276X Class 125 FF 2U B0755X012 24B5837X012 Class 250 RF 24A7700X012 11B0755X022 24B5837X022 Class 150 RF 2U B0755X032 24B5837X032 Class 300 RF 2U B0755X042 24B5837X042 Class 600 RF 2U B0755X052 24B5837X052 SCH 40 BWE 2U B6277X012 24B7756X012 SCH 80 BWE 2U B6277X022 27B7259X012 17

18 TOP PLUG (KEY 5) O-RING (KEY 14) O-RING (KEY 70) DIAPHRAGM (KEY 9) BOTTOM PLUG (KEY 11) O-RING (KEY 10) LOCK WASHER (KEY 130) SOCKET HEAD SCREW (KEY 129) 1-INCH DIAPHRAGM ASSEMBLY B2617_2 MAIN VALVE ASSEMBLY FOR 1, 2, 3, and 4-INCH BODY SIZES Figure 8. Type EZR Main Valve with Travel Indicar 18

19 MAIN VALVE ASSEMBLY FOR 6-INCH BODY SIZES Figure 8. Type EZR Main Valve with Travel Indicar (continued) 19

20 B2617_A2 Figure 9. Type EZR Nameplate and Flow Arrow B2617_D B2617_C Figure 10. Type EZR Restricted Trim Figure 11. Type EZR Cage O-Ring Placement 3 B2517_B 2-INCH BODY SIZE 3 3 B2617_E 1, 3, AND 4-INCH BODY SIZES Figure 12. Type EZR Travel Indicar Plug Option 6-INCH BODY SIZE 20

21 A6920 B TYPE 6358 PILOT INTERIOR VIEW TYPE 6358B PILOT INTERIOR VIEW Figure 13. Type 6358 and 6358B Pilots 6358 Series Pilots (figures 13, 14, 15 and 16) Key Description Part Number 1 Pilot Body, CF8M Stainless steel 39A5972X012 2 Spring Case, CF8M Stainless steel Types 6358 and 6358B 28A9277X012 Types 6358EB and 6358EBH 27B9722X012 3 Body Plug, S30300 Stainless steel 1B7975X0052 4* Valve Plug Types 6358 and 6358B Nitrile plug with stainless steel stem 14B6372X012 Fluoroelasmer plug with stainless steel stem 16A2924X012 Types 6358EB or 6358EBH Nitrile plug with stainless steel stem 18B3427X012 Fluoroelasmer plug with stainless steel stem 18B3427X022 5* Diaphragm Assembly Types 6358 and 6358B 15A6216X072 15A6216X172 Type 6358EB psig (5,2 13,8 bar) 18B3428X psig (12,4 24,2 bar) 18B3428X psig (5,2 13,8 bar) 18B3428X psig (12,4 24,2 bar) 18B3428X052 Type 6358EBH, Nitrile 18B3429X012 Key Description Part Number 6 Connecr Cap, Stainless steel Types 6358 and 6358B 16A2921X012 Types 6358EB or 6358EBH 14B9813X012 7 Control Spring Type psig (1,4 2,8 bar), 1E psig (2,4 8,6 bar), Red 1K Type 6358B psig (1,4 2,8 bar), 1E psig (2,4 8,6 bar), Red 1K Type 6358EB psig (5,2 9,7 bar), 17B1261X psig (9,0 13,8 bar), Blue 17B1263X psig (12,4 24,1 bar), Red 17B1264X012 Type 6358EBH psig (17,3 31,1 bar), Blue 17B1263X psig (27,6 41,4 bar), Red 17B1264X012 8 Spring Seat, Zinc-plated steel Types 6358 and 6358B 1B Types 6358EB or 6358EBH 17B0515X012 9 Stem Guide, Stainless steel 16A2923X Adjusting Screw Type 6358B Type 6358EB psig (5,2 13,8 bar) 17B1227X psig (12,4 24,1 bar) 10B3081X012 Type 6358EBH 10B3081X012 *Recommended Spare Part 21