Related Manuals for Flowserve Valtek FlowTop V746
Summary of Contents for Flowserve Valtek FlowTop V746
- Page 1 USER INSTRUCTIONS Valtek FlowTop Installation General Service Control Valve Operation Type V746 and V748 Maintenance FCD VLENIM8610A4 11/18 This document is the Original Instructions’ Experience in Motion...
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Page 2: Table Of Contents
9001 standards. The following instructions are designed to assist in unpacking, installing and per- forming maintenance as required on Flowserve Valtek FlowTop control valves. This instruction manual does not include specific product design data. Such data can be found on the valve’s serial plate or specification documents; additionally, dimen- sional information can be found in the Valtek FlowTop technical bulletin. -
Page 3: Scope Of Manual
There are five bon- at www.flowserve.com. It is the user’s responsibility to keep net designs: standard bonnet or extended bonnet (either as this and related documentation on file and accessible for the unbalanced or pressure balanced), and bellows seal bonnets. -
Page 4: Safety
Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 weight (for further information see Packaging and Sending Unauthorized modification of the Valtek Flow- Instructions, Form L 002). Packing guidelines for export Top control valve voids the product test certi- follow HPE standards. (Nonreturnable packaging may contain up to 90% recyclable materials.) fication and product warranties, could drasti- cally affect product performance, and could... -
Page 5: Installation
(Actuator sizes 500 and 700 cm observe the permissible loading • Call your Flowserve representative if you experience force). any problems. • Do not remove the protective covers from the body Figure 5: Triple-leg sling... - Page 6 Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 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 Fa ce to fa ce...
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Page 7: Valve Quick-Check
Incorrect maintenance can put you at risk for heat Incorrect maintenance can result in the emission related burns, freezing, acid burns or poisoning. of hot, cryogenic, and / or toxic operating media. Table 3: Basic safety massages for operating the valve flowserve.com... -
Page 8: Valve Maintenance
Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 4. Continuously increase load until operation parameters Due to risk of crushing hazard, do 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 flowserve.com...
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Page 10: Troubleshooting
Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 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 • Check power supply interrupted (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 flowserve.com...
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Page 12: Disassembly And Reassembly
Valtek FlowTop control valve. The Valtek FlowTop control valve is al- lowed to be disassembled and reassem- Only Flowserve trained and authorized personnel are allowed bled only by qualified staff - personnel to repair (disassemble and reassemble) the Valtek FlowTop in who are familiar with disassembling, re- hazard areas. - Page 13 Figure 8: Remove the actuator Please exercise caution. Item Part Item Part Yoke Lock Nut Actuator Coupling Lock Nut Valve Coupling Socket Head Srew (2x) Table 10: Coupling parts identification flowserve.com...
- Page 14 Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 Exercise care with a pressure bal- NOTICE anced plug design. While removing the pressure balanced plug, the retainer may stick to the bonnet then become detached while lifting the plug and stem out of the valve. Secure the seat retainer as you remove the plug and stem.
- Page 15 Do not over tighten the packing. Over NOTICE 2. Turn the packing follower (80) counter clockwise to tightened packing may produce loosen. higher friction and reduce product service life. 3. Remove the Belleville springs (138). 27. Log the maintenance interval and the work performed. flowserve.com...
- Page 16 Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 4. Remove the upper stem guide (87). 5. Place the Ring Nut Tool clockwise (See Section 16: Special Tools) on the stem (51) and turn slowly. Crushing hazard ! Lifting WARNING the bonnet and plug from the control valve involves personal physical risk by falling parts.
- Page 17 Insert the bellows seal assembly (51) type B through Stem Packing the underside of the bonnet (5), install a new profile ring (60) and seal carrier (91) on top. Turn hex nut Table 13: Valve parts with bellows seal flowserve.com...
- Page 18 Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 (104) clockwise and finger tighten. 29. Finish packing follower tightening with a wrench (See (See Section 14: Required Torques, for plug and stem) Table 7, Page 9). 17. Install the new bonnet gasket (58). 30.
- Page 19 9. After reinstalling the control valve into the pipeline, perform three full strokes and check the tightness of the packing follower and bonnet bolting (See Section 10: Valve Quick-Check). 10. Log the maintenance interval and the work performed. Figure 16: Reassemble the positioner flowserve.com...
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Page 20: Torque Requirements
Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 Parts - Packing Detail Type PTFE - rings Graphite - rings Detail Standard Spring loaded Standard Spring loaded Packing Assembly The two Belleville springs must be stacked in series ! 14 Torque Requirements BONNET NUTs (1.4) Torque Requirements for per nominal diameter... -
Page 21: 15 Lubricants
NOTICE and international environmental conditions for control valve removal from the pipeline and cleaning. Permis- sible limit values must be maintained to ensure suitable protective measures; service personnel must be properly instructed in performing the disassembly and reassembly procedure. flowserve.com... -
Page 22: Parts List
Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 18 Parts List see page 15, see page 13 and page 19 Item Part Available Materials Body A216 WCC A351 CF8M A351 CF3M Bonnet A105 or WCC F316 or CF8M F316L or CF3M Seat ring 410SS 316SS... - Page 23 Valtek FlowTop General Service Valve FCD VLENIM8610A4 11/18 Bellows Seal Standard / Extended Bonnet Bonnet Balanced Unbalanced 50 (CavStream) 30 (MegaStream) Figure 17: Complete valve parts flowserve.com...
- Page 24 Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous Flowserve Control Valves GmbH applications under a wide variety of industrial service conditions.