Instruction Manual YD and YS Valves D100425X012 October 2014 Fisherr YD and YS 3-Way Valves Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Educational Services . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instruction Manual YD and YS Valves D100425X012 October 2014 Table 1. Specifications Valve Sizes, Ratings, and End Connections (1,2) Cast Iron Valves Flanged: NPS 1-1/2 through 6 CL125 flat-face or CL250 raised-face flanges per ASME B16.1 Screwed: NPS 1-1/2 and 2 consistent with ASME B16.4 Steel and Stainless Steel Valves Flanged: NPS 1 through 8 CL150, 300, and 600 raised-face or ring-type joint flanges per ASME B16.5 Screwed or Socket Welding: NPS 1/2 through 2 consistent with ASME B16.
Instruction Manual YD and YS Valves D100425X012 October 2014 Installation WARNING Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury. Personal injury or equipment damage caused by sudden release of pressure might result if the valve assembly is installed where service conditions could exceed the limits given in table 1 or on the appropriate nameplates.
Instruction Manual YD and YS Valves D100425X012 October 2014 heat treating is to be performed, all trim parts should be removed. Contact your Emerson Process Management sales office for additional information. 7. YD or YS control valves can be installed in any position, although the recommended position is with the actuator vertical above the valve. For NPS 4 and 6 YS valves, size 80 or larger actuators mounted between 45 degrees above and 45 degrees below horizontal should be supported.
Instruction Manual YD and YS Valves D100425X012 October 2014 D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure from both sides of the valve. Drain the process media from both sides of the valve. D Vent the power actuator loading pressure and relieve any actuator spring precompression. D Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment.
Instruction Manual YD and YS Valves D100425X012 October 2014 Packing Maintenance Note For valves with ENVIRO-SEAL packing, see the Fisher instruction manual ENVIRO-SEAL Packing System for Sliding-Stem Valves for packing instructions. For valves with HIGH-SEAL packing, see the Fisher instruction manual HIGH-SEAL Live-Loaded Packing System for packing instructions. Packing Replacement WARNING Observe the warning at the start of the Maintenance section. Table 3.
Instruction Manual D100425X012 YD and YS Valves October 2014 1. Remove the actuator and bonnet according to steps 1 through 4 of the Disassembly procedure in the Maintenance section on page 7. 2. With the stem and valve plug assembly removed from the bonnet, remove the packing nuts (key 5), packing flange (key 3), wiper ring (key 12), and packing follower (key 13) from the bonnet.
Instruction Manual YD and YS Valves D100425X012 October 2014 WARNING See the WARNING at the beginning of the Maintenance section for more information. 2. Disconnect the actuator stem connector and remove the locknut (key 15, figure 13) that holds the actuator to the valve. (Valves with a 127 mm (5-inch) yoke boss use cap screws and nuts to secure the actuator on the valve). Then lift the actuator from the valve. Figure 3.
Instruction Manual YD and YS Valves D100425X012 October 2014 Figure 4. Detail of Fisher PTFE/Composition Packing Arrangements UPPER WIPER (KEY 12) PACKING FOLLOWER (KEY 13) PACKING RING (KEY 7) LANTERN RING (KEY 8) PACKING BOX RING (KEY 11) 9.5 mm 12.7 mm 19.1, 25.4, OR 31.8 mm (3/8 INCH) (1/2 INCH) (3/4, 1, OR 1-1/4 INCH) STEM STEM STEM 12A8188-A 12A7815-A 12A8173-A A2619-1 TYPICAL (DOUBLE) ARRANGEMENTS Figure 5.
Instruction Manual YD and YS Valves D100425X012 October 2014 Figure 6. PTFE Packing Arrangements for Use in Fisher ENVIRO-SEAL Bellows Seal Bonnets UPPER WIPER (KEY 12) BUSHING (KEY 13) PACKING SET: (KEY 6) FEMALE ADAPTOR PACKING RING MALE ADAPTOR SPACER (KEY 8) THRUST RING (KEY 39) 12B4182-A SHT 1 SPRING (KEY 8) THRUST RING 12B4185-A SHT 1 (KEY 39) 9.5 mm 12.7 mm (3/8 INCH) (1/2 INCH) STEM STEM FOR S31600 (316 SST) PACKING BOX PARTS SPACER (KEY 8) 12B4185-A SHT 2 12B4182-A SHT 2 9.
Instruction Manual YD and YS Valves D100425X012 October 2014 Figure 7. Double Graphite Ribbon/Filament Arrangements for Use in Fisher ENVIRO-SEAL Bellows Seal Bonnets BUSHING (KEY 13) 1 GRAPHITE FILAMENT PACKING RING (KEY 7) GRAPHITE RIBBON PACKING RING (KEY 7) 1 1 1 SPACER (KEY 8) 1 1 18A0909-D 12B4181-A 9.5 mm (3/8-INCH) STEM 1 A5870 12.7 mm (1/2-INCH) STEM FOR NPS 2 VALVES 12B6102-A 12.7 mm (1/2-INCH) STEM FOR NPS 3 AND 4 VALVES NOTE: 0.102 mm (0.
YD and YS Valves Instruction Manual October 2014 D100425X012 CAUTION Never use an old stem with a new valve plug. The use of an old stem requires drilling a new pin hole through the stem (or adaptor, in case an ENVIRO-SEAL bellows seal bonnet is being used). This drilling weakens the stem or adaptor and may cause failure in service. However, a used valve plug may be reused with a new stem or adaptor. 7. The internal parts of the bonnet can now be disassembled, if necessary.
Instruction Manual D100425X012 YD and YS Valves October 2014 CAUTION Never use an old stem with a new valve plug. The use of an old stem requires drilling a new pin hole through the stem (or adaptor, in case an ENVIRO-SEAL bellows seal bonnet is being used). This drilling weakens the stem or adaptor and may cause failure in service. However, a used valve plug may be reused with a new stem or adaptor.
YD and YS Valves October 2014 Instruction Manual D100425X012 12. Lubricate the valve stud bolts or cap screws (key 15) and install the nuts (key 16) on the bolts using accepted bolting practices. Tighten the nuts to the recommended bolt torques given in table 5. Follow a pattern similar to that shown in figure 8. Note It might be necessary to repeat the bolting pattern several times until the bonnet-to-body seal is made, because the tightening of one nut might loosen an adjacent nut.
Instruction Manual D100425X012 YD and YS Valves October 2014 13. Mount the bonnet onto the valve with the lubricator or pipe plug parallel with the pipeline. Note Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.
YD and YS Valves Instruction Manual October 2014 D100425X012 Locate the pilot hole in the valve plug and drill the hole through the plug and stem assembly (determine drill size from table 4). Drive in the pin to lock the assembly. 6. For ENVIRO-SEAL bellows seal bonnets, grip the flats of the stem extending out of the top of the bellows shroud with a soft-jaw chuck or other type of vise. Screw the valve plug/adaptor assembly onto the valve stem.
Instruction Manual D100425X012 YD and YS Valves October 2014 CAUTION To prevent possible product damage, cover the opening in the valve in the following procedure to protect the sealing surfaces and to prevent foreign material from getting into the valve body cavity. 3. Remove and discard the existing bonnet gasket. Cover the valve body opening to protect sealing surfaces and to prevent foreign material from entering the valve body cavity.
YD and YS Valves Instruction Manual October 2014 D100425X012 11. Place a new gasket (key 22) over the stem/bellows assembly. Place the new ENVIRO-SEAL bonnet over the stem/bellows assembly. Note Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.
Instruction Manual YD and YS Valves D100425X012 October 2014 can be installed. If the existing valve plug is reused, and the adaptor is in good condition, it may also be reused. However, never reuse an old adaptor with a new valve plug. Using an old adaptor with a new valve plug requires drilling a new pin hole in the adaptor. This drilling weakens the adaptor and may cause failure in service. However, a used valve plug may be reused with a new adaptor. 3. Inspect the existing valve plug and adaptor.
YD and YS Valves October 2014 Instruction Manual D100425X012 1. Remove the two diametrically opposed pipe plugs (key 16). 2. Connect a purging fluid to one of the pipe plug connections. 3. Install appropriate piping or tubing in the other pipe plug connection to pipe away the purging fluid or to make a connection to an analyzer for leak testing. Figure 9.
Instruction Manual YD and YS Valves D100425X012 October 2014 Figure 10. Fisher YD Valve (Standard) 40A3552-F COMMON PORT Figure 11.
Instruction Manual YD and YS Valves D100425X012 October 2014 Figure 12.
Instruction Manual YD and YS Valves D100425X012 October 2014 Figure 13. Fisher Standard Bonnet AU3910-A E1087 Figure 14. Fisher Extension Bonnet PLAIN BONNET Figure 15.
Instruction Manual YD and YS Valves D100425X012 October 2014 Parts Ordering Each valve is assigned a serial number which can be found on the valve. This same number also appears on the actuator nameplate when the valve is shipped from the factory as part of a control valve assembly. Always refer to the serial number when corresponding with your Emerson Process Management sales office about this equipment.
Instruction Manual YD and YS Valves D100425X012 October 2014 Gasket Kits Gasket Kits VALVE SIZE, NPS YD (Includes keys 9, 11, 14, and 22) Part Number YS (Includes keys 9, 11, 12, 13, 14, and 22) Part Number NPS 1/2 to 1-1/2 NPS 2 to 2-1/2 NPS 3 NPS 4 NPS 6 RGASKETXB62 RGASKETXB72 RGASKETXB82 RGASKETXB92 RGASKETXC12 RGASKETXC22 RGASKETXC32 RGASKETXC42 RGASKETXC52 RGASKETXC62 Valve Size, NPS 1/2 through 1-1/2 2 through 2-1/2 3 4 6 Key Number YD Part Number YS Part Number Set RGASKETXB62 R
Instruction Manual YD and YS Valves D100425X012 October 2014 Figure 16. Typical Fisher HIGH-SEAL Graphite ULF Packing System Figure 18. Typical Fisher ENVIRO-SEAL Packing System with Graphite ULF Packing STUD (KEY 200) HEX NUT (KEY 212) PACKING FLANGE (KEY 201) PACKING RING (KEY 209) PACKING RING (KEY 210) PACKING BOX RING (KEY 211) SPRING PACK ASSEMBLY (KEY 217) GUIDE BUSHING (KEY 207) PACKING WASHERS (KEY 214) GUIDE BUSHING (KEY 208) 39B4612/A 1.
Instruction Manual YD and YS Valves D100425X012 October 2014 Keys 2*, 5*, and 6* Valve Plug and Stem Assembly for Plain Bonnet VALVE SIZE, NPS STEM DIAMETER & VSC SIZE YD STANDARD YD HIGH TEMPERATURE YS mm Inches CB7CU-1 (17-4PH SST) CF8M (316 SST) CB7CU-1 (17-4PH SST) CF8M (316 SST) S41600 (416 SST) S31600 (316 SST) 1/2 to 1-1/2 9.5 12.7 3/8 1/2 10A3315X032 --- 10A3315X052 --- ----- ----- 10A3317X202 10A9499X092 10A3317X072 --- 2 and 2-1/2 12.
Instruction Manual YD and YS Valves D100425X012 October 2014 Key 5* Valve Plug Stem STEM SIZE VALVE SIZE, NPS mm VALVE STEM CONNECTION Inch mm YD, S31600 (316 SST) Standard Bonnet Inch YS, S31600 (316 SST) Style 1 Ext. Bonnet Standard Bonnet Style 1 Ext. Bonnet For Use With Group 1 Actuators(1) 9.5 3/8 9.5 3/8 10A8823X312 1U217735162 10A8823X292 10A3539X012 12.7 1/2 9.5 12.7 3/8 1/2 1U530935162 --- ----- --10A9613X012 ----- 12.7 1/2 12.
Instruction Manual YD and YS Valves D100425X012 October 2014 Key 9* Bonnet Gasket and Key 22* Shim VALVE SIZE, NPS KEY 9 (YD & YS) KEY 22 (YD & YS) FGM (Graphite/S31600) S31600 (316 SST) 1/2 - 1-1/2 1R2859X0042 16A1936X012 2, 2-1/2 3 1R3299X0042 1R3484X0042 16A1938X012 16A1940X012 4 6 1R3724X0042 1U5081X0052 16A1941X012 16A1942X012 Key 11* Spiral Wound Gasket and Key 13* Spiral Wound Spring VALVE SIZE, NPS KEY 11 (YD & YS) KEY 13 (YS ONLY) N06600 and Graphite Laminate N06600 and Graphi
Instruction Manual YD and YS Valves D100425X012 October 2014 Keys 3, 4, 9, 11, 14, and 19 (NPS 8 YD Only) PLUG/ CAGE / STEM KEY 3 Low Temperature High Temperature 27B4290X012 27B4290X022 CAGE RETAINER KEY 4 GASKET, QTY 3, KEY 9 34B9111x012 1C2515X0052 SPIRAL WOUND GASKET, KEY 11 Low High Temperature, Temperature, Qty 1 Qty 2 10B5412X032 10B5412X032 O-RING KEY 14 O-RING KEY 19 Low Temperature Low Temperature 1H8623X0022 1D2692X0022 Keys 20, 20A, 20B, 24, and 25 (NPS 8 YD Only) BACK-UP RING
Instruction Manual YD and YS Valves D100425X012 Key 8 8 12* 13* 13* 15 16 20* Description Filament packing ring for NPS 3 and 4 with 12.7 mm (1/2 inch) stem (4 req'd) ENVIRO-SEAL bellows seal spring ENVIRO-SEAL bellows seal spacer ENVIRO-SEAL bellows seal upper wiper For 9.5 mm (3/8 inch) and NPS 2 with 12.7 mm (1/2 inch) stem For NPS 3 and 4 with 12.7 mm (1/2 inch) stem ENVIRO-SEAL bellows seal bushing For 9.5 mm (3/8 inch) stem (1 req'd), for NPS 2 with 12.
YD and YS Valves October 2014 Instruction Manual D100425X012 Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher and ENVIRO-SEAL are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co.
