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DeZurik BHP Manual

High performance butterfly valve
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DeZURIK BHP HIGH
PERFORMANCE
BUTTERFLY VALVE
D10503
Instruction
November 2015

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  • Page 1 DeZURIK BHP HIGH PERFORMANCE BUTTERFLY VALVE D10503 Instruction November 2015...
  • Page 2 Recommended spare parts are listed on the assembly drawing. These parts should be stocked to minimize downtime. Order parts from your DeZURIK sales representative, or directly from DeZURIK. When ordering parts, please include the 7-digit part number and 4-digit revision number (example: 9999999R000) located on the data plate attached to the valve assembly.

  • Page 3: Table Of Contents

    DeZURIK BHP High Performance Butterfly Valves Table of Contents Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 4: Description

    8 diameters from the nearest upstream elbow or pump. For best performance results, install valve shaft parallel with elbow or pump cross section (see image below). For more specific installation recommendations, contact your local representative or DeZURIK for assistance.

  • Page 5: Requirements

    DeZURIK BHP High Performance Butterfly Valves Installing Valve Lifting the valve incorrectly can damage it. Do not fasten lifting devices to the actuator or disc, or through the seat opening in the body. Lift the valve with slings fastened around the valve body or attach them to bolts or rods run through holes for the pipeline flanges.

  • Page 6: Drawings

    DeZURIK BHP High Performance Butterfly Valves Drawings Figure 1 – Component Identification D10503 Page 6 November 2015...

  • Page 7: Replacing Packing

    DeZURIK BHP High Performance Butterfly Valves 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 8: Ptfe V-Flex Dual-Seal Live-Loaded Packing Option (Tcdl)

    DeZURIK BHP High Performance Butterfly Valves 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 9: Ptfe V-Flex Packing Option (Tc)

    DeZURIK BHP High Performance Butterfly Valves Replacing Packing (Continued) 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 10: Ptfe Dual-Seal With Mechanical Spring Packing Option (Tmd)

    DeZURIK BHP High Performance Butterfly Valves 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 11: Ptfe V-Flex Live-Loaded Packing Option (Tcl)

    DeZURIK BHP High Performance Butterfly Valves 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 12: Carbon Graphite Packing Option (G1)

    DeZURIK BHP High Performance Butterfly Valves 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 13: Graphoil Live-Loaded Packing Option (G2L)

    DeZURIK BHP High Performance Butterfly Valves Replacing Packing (Continued) e. Replace the gland (A12) and the two gland nuts (A15). Tighten the nuts finger tight, plus ½ turn. Continue with step 10 on page 16. Graphoil Live-Loaded Packing Option (G2L) The new packing (A11) consists of three or more Graphoil rings between two anti-extrusion washers (A34).

  • Page 14: Graphoil Dual-Seal Packing Option (G2D)

    DeZURIK BHP High Performance Butterfly Valves 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 15: Graphoil Dual-Seal Live-Loaded Packing Option (G2Ld)

    DeZURIK BHP High Performance Butterfly Valves Replacing Packing (Continued) g. Mount the actuator bracket and secondary packing chamber to the body with the same screws and tighten as shown in Table C (page 19). Tighten the gland nuts (A15) finger tight, plus ½...
  • Page 16 DeZURIK BHP High Performance Butterfly Valves Replacing Packing (Continued) c. Lubricate the threads of the two studs (A14) and the threads and contact faces of the two gland nuts (A15). d. Mount the actuator bracket and the secondary packing chamber to the body with the same screws and tighten the screws as shown in Table C (page 19).

  • Page 17: Torque Specification

    DeZURIK BHP High Performance Butterfly Valves 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...
  • Page 18 DeZURIK BHP High Performance Butterfly Valves 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...
  • Page 19 DeZURIK BHP High Performance Butterfly Valves 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...

  • Page 20: Seat Replacement

    DeZURIK BHP High Performance Butterfly Valves Seat Replacement Removing Valve from Pipeline Pipeline pressure can cause personal injury or equipment damage. Relieve the pressure in the pipeline before removing flange bolts and flanges. 1. Relieve pressure in the pipeline and drain the pipeline.

  • Page 21: Resilient Seat Options (Tt, Ti, Rt And Ri)

    DeZURIK BHP High Performance Butterfly Valves 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.

  • Page 22: Metal Seat Option (S2)

    DeZURIK BHP High Performance Butterfly Valves Seat Replacement (Continued) Metal Seat Option (S2) 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).

  • Page 23: Fyre-Block™ Seat Options (Rts2, Tts2, Tis2, And Ris2)

    DeZURIK BHP High Performance Butterfly Valves Seat Replacement (Continued) Dual 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).

  • Page 24: Valve Disassembly

    DeZURIK BHP High Performance Butterfly Valves 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 25: Bearing Replacement

    DeZURIK BHP High Performance Butterfly Valves 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 14 (page 28): •...

  • Page 26: Valve Reassembly

    DeZURIK BHP High Performance Butterfly Valves Valve Reassembly Clean and inspect all parts, and replace worn parts before reassembly. Refer to Figure 1 for component identification. The valve requires lubrication only when it is being assembled. Refer to the Actuator Instructions for lubrication requirements for the actuator.
  • Page 27 DeZURIK BHP High Performance Butterfly Valves Valve Reassembly (Continued) 6. Replace the packing, the packing gland and the gland adjustment nuts as shown in steps 7, 8 and 9 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 28 DeZURIK BHP High Performance Butterfly Valves Valve Reassembly (Continued) Figure 14 – Disc Pin Assembly D10503 Page 28 November 2015...

  • Page 29: Troubleshooting

    DeZURIK BHP High Performance Butterfly Valves 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.
  • Page 30 No claim for transportation, labor or special or consequential damages or any other loss, cost or damage shall be allowed. You shall be solely responsible for determining suitability for use and in no event shall DeZURIK, Inc. be liable in this respect.

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