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DeZurik S2 Instructions Manual

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DEZURIK BHP HIGH
PERFORMANCE BUTTERFLY
VALVE
(S2, S3, S5, AA, HC, ML, T2 & T5 SHAFTS)
D10322
Instruction
November 2020
DeZURIK, Inc. Sartell, Minnesota USA | Phone: 320-259-2000 |
www.dezurik.com
| info@dezurik.com

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  • Page 1 DEZURIK BHP HIGH PERFORMANCE BUTTERFLY VALVE (S2, S3, S5, AA, HC, ML, T2 & T5 SHAFTS) D10322 Instruction November 2020 DeZURIK, Inc. Sartell, Minnesota USA | Phone: 320-259-2000 | www.dezurik.com | info@dezurik.com...
  • Page 2 Safety label(s) on the product indicate hazards that can cause injury or death. If a safety label becomes difficult to see or read, or if a label has been removed, please contact DeZURIK for replacement label(s). Personnel involved in the installation or maintenance of valves should be constantly alert to potential emission of pipeline material and take appropriate safety precautions.

  • Page 3: Table Of Contents

    Removing Valve From Pipeline .................... 21 Replacing the Seat ....................... 21 Resilient Seat Options (TT, TI, RT and RI) ................22 Metal Seat Option (S2) ......................23 Fyre-Block Seat Options (RTS2, TTS2, TIS2, and RIS2) ............. 24 Intelli-Seal Seat Options (IS1 and IS2) ................. 25 Valve Disassembly ........................

  • Page 4: Description

    If you use metric fasteners with ASME Class 150/300 bolt holes and flange bolt patterns, it may lead to product failure, injury, and loss of life. DeZURIK Inc. disclaims all liability associated with the use of metric fasteners with ASME Class 150/300 bolt holes and...

  • Page 5: Installing Valve

    DeZURIK Installing Valve (Cont’d)  Valves with undrilled seat retainers are not suitable for dead-end service without a downstream flange.  If possible, install the valve with the shaft horizontal to provide a self-cleaning action on the seat. Install the valve so that the seat will be on the higher pressure side when the valve is closed. The seat side of the valve is marked “SEAT”.

  • Page 6: Operation

    DeZURIK Operation Clockwise rotation of the valve shaft closes the disc into the seat. A line on the top of the valve shaft indicates the position of the disc when the disc is not visible. The valve is fully closed when the flat side of the disc is parallel with the flange sealing surface on the body.

  • Page 7: Drawings

    DeZURIK Drawings Figure 1 – Component Identification November 2020 Page 7 D10322...

  • Page 8: Replacing Packing

    DeZURIK Replacing Packing Several packing options are available. See Figure 1 for parts identification. Pipeline pressure can cause personal injury or equipment damage. Relieve the pressure in the pipeline before removing the packing gland. Discontinue flow and relieve pipeline pressure.

  • Page 9: Ptfe V-Flex Dual-Seal Live-Loaded Packing Option (Tcdl)

    DeZURIK Replacing Packing (Continued) PTFE V-Flex Dual-Seal Live-Loaded Packing Option (TCDL) The new primary packing (A11) and the new secondary packing (A26) each consist of one bottom end ring, three or more chevron rings and one top end ring. A quantity of new spring washers (A36) is required as shown in Table A (page 17) for Class 150 valves and in Table B (page 18) for Class 300 valves.

  • Page 10: Ptfe V-Flex Packing Option (Tc)

    DeZURIK Replacing Packing (Continued) h. Tighten the gland nuts (A15) finger tight and torque the nuts evenly to the value in Table A for Class 150 valves and in Table B for Class 300 valves. Continue with step 10 on page 16.

  • Page 11: Ptfe Dual-Seal With Mechanical Spring Packing Option (Tmd)

    DeZURIK Replacing Packing (Continued) PTFE Dual-Seal with Mechanical Spring Packing Option (TMD) The new primary packing (A11) consists of one spring-loaded bottom end ring, three or more chevron rings and one top end ring, all between two anti-extrusion washers (A34); the new secondary packing (A26) consists of one bottom end ring, three or more chevron rings and one top end ring, all between two anti-extrusion washers (A34).

  • Page 12: Ptfe V-Flex Live-Loaded Packing Option (Tcl)

    DeZURIK Replacing Packing (Continued) PTFE V-Flex Live-Loaded Packing Option (TCL) The new packing (A11) consists of one bottom end ring, three or more chevron rings and one top end ring. A quantity of new spring washers (A36) is required as shown in Table A for Class 150 valves and in Table B for Class 300 valves.

  • Page 13: Carbon Graphite Packing Option (G1)

    DeZURIK Replacing Packing (Continued) Carbon Graphite Packing Option (G1) The new packing (A11) consists of one Graphoil ring and two carbon rings. Figure 6 — Packing Option (G1) a. Place the packing in the body, one ring at a time, in the configuration shown in Figure 6 — do not lubricate.

  • Page 14: Graphoil Live-Loaded Packing Option (G2L)

    DeZURIK Replacing Packing (Continued) Graphoil Live-Loaded Packing Option (G2L) The new packing (A11) consists of three or more Graphoil rings between two anti-extrusion washers (A34). A quantity of new spring washers (A36) is required as shown in Table A (page 17) for Class 150 valves and in Table B (page 18) for Class 300 valves.

  • Page 15: Graphoil Dual-Seal Packing Option (G2D)

    DeZURIK Replacing Packing (Continued) Graphoil Dual-Seal Packing Option (G2D) The new primary packing (A11) consists of three or more Graphoil rings between two anti-extrusion washers (A34); the new secondary packing (A26) consists of two Graphoil rings between two anti- extrusion washers (A34).

  • Page 16: Graphoil Dual-Seal Live-Loaded Packing Option (G2Ld)

    DeZURIK Replacing Packing (Continued) Graphoil Dual-Seal Live-Loaded Packing Option (G2LD) Components are the same as option G2D. In addition, a quantity of new spring washers (A36) is required as shown in Table A (page 17) for Class 150 valves and in Table B (page 18) for Class 300 valves.
  • Page 17 DeZURIK Replacing Packing (Continued) 10. Replace pin (A46) in valve shaft (A4) (does not apply to valves with stepped shafts). 11. If the valve has single packing, re-mount the actuator bracket on the valve and tighten the screws as shown in Table A (page 17).

  • Page 18: Torque Specification

    DeZURIK Torque Specification Table A: Class 150 Valves—Gland Nut Torques and Spring Washer Quantities for Live-Loaded Packing Spring Washers (17-7PH Stainless Steel) Gland Valve Size Dimensions (Ref) Quantity Nut Torque in [mm] Each Gland Outside Inside Material Overall in lbs...
  • Page 19 DeZURIK Torque Specification (Continued) Table B: Class 300 Valves—Gland Nut Torques and Spring Washer Quantities for Live-Loaded Packing Spring Washers (17-7PH Stainless Steel) Valve Size Gland Nut Torque Dimensions (Ref) Quantity in [mm] Each Gland Outside Inside Material Overall in lbs...
  • Page 20 DeZURIK Torque Specification (Continued) Table C: Fastener Torques, Actuator Bracket–to–Valve Valve Fastener Size Torque Class Size (Ref) Grade (Ref) ft lbs 2–4 50–100 1/4-20 13±1 18±1 5–8 125–200 5/16-18 27±4 37±5 3/8-16 41±5 56±10 12–16 300–400 1/2-13 99±13 135±18 18 and 20 450–500...

  • Page 21: Seat Replacement

    6. Refer to the appropriate seat option:  Resilient Seat Options (TT, TI, RT and RI)—see page 21  Metal Seat Option (S2)—see page 22  Fyre-Block Seat Options (RTS2, TTS2, TIS2, and RIS2)—see page 23  Intelli-Seal Seat Options—see page 24...

  • Page 22: Resilient Seat Options (Tt, Ti, Rt And Ri)

    DeZURIK Seat Replacement (Continued) Resilient Seat Options (TT, TI, RT and RI) a. Place the seat control ring (A22) in the groove in the new seat (A21) and center the seat on the closed disc b. On valve sizes 5–10" (125–250mm) only, center seat retainer gasket (A6) in position on the body.

  • Page 23: Metal Seat Option (S2)

    Apply a rust inhibitor such as Never Seez to the threads of the seat Figure 12 — Metal Seat Option (S2) retainer screws (A23). With all components centered, mount the seat retainer (A20) to the body with the seat retainer screws. Tighten the screws as shown in Table D (page 24).

  • Page 24: Fyre-Block Seat Options (Rts2, Tts2, Tis2, And Ris2)

    DeZURIK Seat Replacement (Continued) Fyre-Block Seat Options (RTS2, TTS2, TIS2, and RIS2) a. If the actuator is connected to the valve shaft, loosen the connection so that the valve shaft can rotate. b. Loosen the packing gland nuts (A15). c. Place the seat control ring (A22) in the groove in the new PTFE seat (A21).

  • Page 25: Intelli-Seal Seat Options (Is1 And Is2)

    DeZURIK Seat Replacement (Continued) Intelli-Seal Seat Options (IS1 and IS2) a. If the actuator is connected to the valve shaft, loosen the connection so that the valve shaft can rotate. b. Loosen the packing gland nuts (A15). c. Apply a light coat of...

  • Page 26: Valve Disassembly

    DeZURIK Valve Disassembly Refer to Figure 1 (page 6) for component identification. Pipeline pressure can cause personal injury or equipment damage. Relieve the pressure in the pipeline before removing flange bolts and flanges. 1. Relieve the pressure in the pipeline, drain the pipeline and close the valve.

  • Page 27: Bearing Replacement

    DeZURIK Valve Disassembly (Continued) 12. On larger sizes, remove the cover screws (A33), lockwashers (A32), cover (A31) and seal (A30) from the bottom of the body. 13. Remove the disc pin—see Figure 15 (page 29):  On valve sizes 2–12" (50–400mm), remove the disc pin set screw (A24) and drive the disc pin (A5) from the disc with a small punch.

  • Page 28: Valve Reassembly

    DeZURIK Valve Reassembly 1. With the valve horizontal and the seat side down, align the shaft hole in the disc (A3) with the assembled bearing components in the body. 2. Then insert the bottom end of the shaft (the end without an actuator connection) into the top of the body and push the shaft into position.
  • Page 29 DeZURIK Valve Reassembly (Continued) 6. Replace the packing, the packing gland and the gland adjustment nuts as shown in steps 7 and 8 of the Replacing Packing section on page 7. 7. On Class 150 valve sizes 2–18" (50–450mm) and Class 300 valve sizes 2–16" (50–400mm), replace and tighten the pipe plug (A9) in the bottom of the body.
  • Page 30 DeZURIK Valve Reassembly (Continued) Figure 15 – Disc Pin Assembly D10322 Page 30 November 2020...

  • Page 31: Pressure-Temperature Curves

    DeZURIK Pressure-Temperature Curves November 2020 Page 31 D10322...

  • Page 32: Troubleshooting

    DeZURIK Troubleshooting Condition Possible Cause Corrective Action Packing is loose. Adjust packing. Packing Leaks Packing is worn. Replace packing. Closed position stop is set Adjust closed stop. incorrectly. Valve leaks when closed. Seat is worn or damaged. Replace seat. Sealing edge of disc is worn or Replace disc.
  • Page 33 If you use metric fasteners with ASME Class 150/300 bolt holes and flange bolt patterns, you do so at your sole risk and any liability associated with such use shall not be the responsibility of DeZURIK, Inc. In addition to the foregoing, DeZURIK’s Manufacturer’s Conditions apply.

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