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Summary of Contents for Flowserve Valtek FlowTop V750
- Page 1 U S E R IN S T RU C T ION S Installation Operation Maintenance Valtek FlowTop General Service Control Valve Type V750 and V752 FCD VLEEIM1485-04 11/22 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
(either as at www.flowserve.com. It is the user’s responsibility to keep unbalanced or pressure balanced), and bellows seal bonnets. this and related documentation on file and accessible for the The Valtek FlowTop is designed in compliance with EN Valtek FlowTop product. -
Page 4: Safety
Filling material may be a carton type or paper. Flowserve is not a transport and lifting company. It is the Shipping marks display product and package dimensions and responsibility of the persons commissioned on site to carry... -
Page 5: Installation
The aim is to ensure safe • Call your Flowserve representative if you experience and trouble-free operation because of rigging and lifting. any problems. - Page 6 In the worst case, such a problem can be resolved only by a subsequent expensive pipe change. Flowserve Control Valves GmbH is a manufacturer of valves, not a piping contractor. Our expertise is in the design and manufacture of control valves.
- Page 7 WW or EU serial plate. Table 1: Basic safety massages for installing the valve After these requirements are confirmed the valve can be installed and connected in the piping. FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com...
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Page 8: Valve Quick-Check
Valtek FlowTop 1. Remove the protective flange covers and coating from possible. Vertical installation permits easier valve the control valve; clean the flange gasket surface. maintenance. 3. Install and connect the control valve to the pipeline. Unsuitable cleaning agents can dam- NOTICE Locate gaskets in the center of the body flanges and age and cause leakage in PTFE and... -
Page 9: Valve Maintenance
Dependent upon results of previous maintenance (see numbers 1 to 4 above) or a the valve minimum once every 60 months Operation test No action Perform 3 full strokes if packing and / or bonnet tightening is modified; check for leakage FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com... - Page 10 Valtek FlowTop Recommended maintenance actions using the Logix digital positioner with ValveSight diagnostic solution software Valve Condition Inter- Service Good Adequate Inadequate Visual inspection of Weekly No action - Take action per warning Overhaul or replace required part per diagnostic interface valve is healthy alarm Check health parameter...
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Page 11: Troubleshooting
Make sure there are no leaks. • Valve trim worn or stuck • Contact customer service department or contract partner Jerky stem movement • Damaged stem • Contact customer service department or contract partner FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com... - Page 12 Valtek FlowTop Defect Possible Causes Remedy Jerky stem movement • Actuator not powerful enough • Compare actuator specifications on the serial plate with operation specifications of the facility. If incompatible, contact customer service department or contract partner Stem travel less than full stroke • Air supply pressure too low • Provide air at the pressure stated on the serial plate (0 to 100 %)
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Page 13: 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 14 Valtek FlowTop After these requirements are confirmed the control valve can be maintained and repaired. Description of the Procedure 1. Disconnect the air supply from the actuator and / or assembled accessories. O-ring 2. Disassemble the positioner from the valve as neces- sary (See Figure 7: Remove the positioner).
- Page 15 9. Install a new profile ring (55) and seat ring (20). Profile ring 10. Lower the seat retainer (30) into the body and place it Table 11: Valve parts on top of the seat ring (See Figure 9). FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com...
- Page 16 Valtek FlowTop 15. Install the new packing. Exercise care with a pressure bal- NOTICE anced plug design. While removing For details, see the associated packing NOTICE the pressure balanced plug, the retainer may stick to variant (see Page 19 - 20). Install and the bonnet then become detached while lifting the plug push two packing rings consecutively using the Tamp- and stem out of the valve.
- Page 17 Loosen the bolted connection Item Part Item Part and start again if it proves difficult to move the plug. Bonnet Stem Plug Lock bushing 16. Finish packing follower (80) tightening with a wrench Table 13: Bonnet parts FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com...
- Page 18 Valtek FlowTop Standard and Extension Bonnet design Bellows Seal Bonnet design NPS 1/2 - 2 with a pressure balanced trim - disas- - disassembly instructions sembly instructions 1. To disassemble the packing assembly, switch to the relevant description (see Page 19 - 20). 1.
- Page 19 (93) and packing (88) by knocking out from below. Figure 15: Disassemble / Reassemble the packing Item Part Item Part Packing follower Packing Upper stem guide Packing box ring Figure 14: Disassemble / Reassemble the bonnet Table 17: Packing parts FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com...
- Page 20 Valtek FlowTop NOTICE The belleville springs must be stacked in series ! Internal packing design, live loaded - disassembly instructions 1. Turn the packing follower (80) counter clockwise to loosen, remove the belleville springs (138) and upper stem guide (87). 2.
- Page 21 (See Section 10: Valve Quick-Check). 10. Log the maintenance interval and the work performed. Figure 21: Reassemble the positioner FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com...
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Page 22: Torque Requirements
Valtek FlowTop 14 Torque Requirements BONNET NUTs (114) Torque Requirements for per nominal diameter Presssure Class 1/2“ 3/4“ 1“ 1 1/2“ 2“ 3“ 4“ 6“ Class 150 Class 300 Class 150 ft lb Class 300 V750 is designed for Class 150 while V752 is desigend for Class 300 HEAD NUTs (110) Torque Requirements for per nominal diameter... -
Page 23: Lubricants
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. FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com... -
Page 24: Parts List
Valtek FlowTop 18 Parts List see page 18, see page 14 and page 21 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 316L Seat retainer 410SS 316SS... - Page 25 Valtek FlowTop Standard / Extended Bonnet Balanced Unbalanced Bellows Seal Bonnet CavStream MegaStream FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com...
- Page 26 Valtek FlowTop Space for personal notes FCD VLEEIM1485-04 (EN/A4) November 2022...
- Page 27 Valtek FlowTop Space for personal notes FCD VLEEIM1485-04 (EN/A4) November 2022 flowserve.com...
- Page 28 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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