Flowserve Valtek GS V701 User Instructions

Flowserve Valtek GS V701 User Instructions

General service control valve

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U S E R IN S T RU C T ION S
Installation
Operation
Maintenance
Valtek GS
General Service Control Valve
Type V701
FCD VLEEIM0300-05 11/22
This document is the 'Original Instructions'
Experience In Motion

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Summary of Contents for Flowserve Valtek GS V701

  • Page 1 U S E R IN S T RU C T ION S Installation Operation Maintenance Valtek GS General Service Control Valve Type V701 FCD VLEEIM0300-05 11/22 This document is the ’Original Instructions’ Experience In Motion...
  • Page 2: Table Of Contents

    The Valtek GS is manufactured to ISO 9001 standards. The following instructions are designed to assist in unpacking, installing and per- forming maintenance as required on Flowserve Valtek GS control valves. This in- struction manual does not include specific product design data. Such data can be found on the valve’s serial plate or specification documents;...
  • Page 3: Scope Of Manual

    Figure 2. instructions at www.flowserve.com. It is the user’s respon- sibility to keep this and related documentation on file and ac- The Valtek GS is designed in compliance with EN 1349:2009 cessible for the Valtek GS product.
  • Page 4: Safety

    Valtek GS follow HPE standards. (Nonreturnable packaging may contain Unauthorized modification of the Valtek GS con- up to 90% recyclable materials.) trol valve voids the product test certification and product warranties, could drastically affect prod- 7 Storage uct performance, and could be hazardous to per- sonnel and equipment.
  • Page 5: Installation

    (Actua- tor sizes 500 and 700 cm • Contact your shipper immediately to report any damage. • Call your Flowserve representative if you experience any problems. • Do not remove the protective covers from the body Figure 5: Triple-leg sling...
  • Page 6 Valtek GS Check Possible malfunction or safety related incident Confirm the actuator has enough overhead clearance ≈ R to disassemble the plug from the valve body. Removal Space ≈ R Actuator Code inch inch 10.2 11.4 F ac e to fa ce di m en si on s 13.0 Table 2: Overhead clearance dimensions...
  • Page 7: Valve Quick-Check

    Incorrect maintenance can put you at risk for heat of hot, cryogenic, and / or toxic operating media. related burns, freezing, acid burns or poisoning. Table 3: Basic safety massages for operating the valve FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 8: Valve Maintenance

    Valtek GS Due to risk of crushing hazard, do 4. Continuously increase load until operation parameters WARNING are reached. not work between the yoke legs while the valve is in operation. 5. Minor relaxation of the flange bolting is possible after initial assembly.
  • Page 9 Check valve for smooth, full-stroke operation. Un- Internal valve failure requires an immediate overhaul or control steady stem movement could indicate an internal valve replacement by qualified stuff. valve problem. Table 6: Basic safety massages for maintenance the valve FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 10: Troubleshooting

    Valtek GS After these requirements are confirmed proceed with valve 5. Make sure all nuts and bolts are securely fastened. maintenance. 6. If possible, stroke the valve and check for smooth, full-stroke operation. Unsteady stem movement could Crushing hazard ! Failure to keep WARNING indicate an internal valve problem.
  • Page 11 (connections, circuit breakers, voltage) • Limit switch out of adjustment • Readjust limit switch operating distance; see limit switch data sheet Unstable positioner • Defective positioner • See user instruction of the positioner manufacturer Table 8: Trouble-shooting FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 12: Disassembly And Reassembly

    The Valtek GS control valve is allowed to be disassembled and reassembled only by qual- Only Flowserve trained and authorized personnel are allowed ified staff - personnel who are familiar with to repair (disassemble and reassemble) the Valtek GS in hazard areas.
  • Page 13 Lock nut Lower coupling and stem out of the valve. Secure the cage as you re- Cap screw Table 10: Coupling parts identification move the plug and stem. WorldWide European Union FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 14 Valtek GS 6. Remove the bonnet gasket (58). 7. Insert the Seat Change Tool (See Section 16: Special Tools) into the body of the valve until the pin clicks into place. Use a suitable torque wrench to remove the seat ring. 8.
  • Page 15 1. Turn the bonnet nuts (114) counter clockwise to loosen bellows seal assembly up and out. (See Figure 10: Disassemble / Reassemble the valve with bellows seal bonnet type A). Type B Bellows Seal Assembly: FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 16 Valtek GS Turn the hex nut (113) from the bellows seal assembly (6) counter clockwise to loosen, remove the seal car- rier (91) and profile ring (60) then move the bellows seal assembly down and out. The bolting between plug and stem NOTICE are secured against twisting.
  • Page 17 28. Tighten the bonnet nuts (114) in four steps - 30%, Plug gasket Packing 114 Hex nut 60%, 100%, and all around 100% - using a crosswise pattern (See Section 14: Torque Requirements). Table 13: Valve parts with bellows seal FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 18 Valtek GS Extended bonnet version with a pressure 29. Tighten the nuts (110) in four steps - 30%, 60%, 100%, and all around 100% - using a crosswise pattern (See balanced or MultiStream trim: Section 14: Torque Requirements). Check the plug’s freedom of movement NOTICE 1.
  • Page 19 (See Section 5.10 Yoke lock nut Upper coupling 10: Valve Quick-Check). Lock nut Lower coupling Cap screw Table 16: Coupling parts identification 10. Log the maintenance interval and the work performed. WorldWide European Union FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 20: Torque Requirements

    Valtek GS 14 Torque Requirements BONNET NUTs (58) Torque Requirements for per nominal diameter Valtek GS Presssure Class 1/2“ 3/4“ 1“ 1 1/2“ 2“ 3“ 4“ 6“ PN 16 / 40 12,5 Class 150 Class 300 PN 16 / 40 19.2 14.0 Class 150...
  • Page 21: Special Tools

    Recommended tool for disassembling. Part N° See spare parts catalog Stem Tightening Tool Recommended tool for disassembling and reassembling. Part N° See spare parts catalog Alternatively, one can use also an automatic stud driver. FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 22: Parts List

    Valtek GS 17 Parts List see page 17, see page 18 Item Part Available Materials Body 1.0619 A216 WCC 1.4408 A351 CF8M Bellows seal Unit 316 SS 3.15 Head 1.0460 A105 1.4404 316 L 1.0619 A216 WCC 1.4408 A351 CF8M Lock Bushing 316 SS Seat Ring...
  • Page 23: Disposal

    Permissible limit values must be maintained to ensure suit- able protective measures; service personnel must be prop- erly instructed in performing the disassembly and reassembly procedure. FCD VLEEIM0300-05 (EN/A4) November 2022 flowserve.com...
  • Page 24 Flowserve products. The purchaser/user should read and understand the Installation Instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection Telephone: +43 (0) 4242 41 181 - 0 with the specific application.

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