Flowserve Valtek MaxFlo 4 User Instructions
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Flowserve Valtek MaxFlo 4 User Instructions

Eccentric rotary plug control valve
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Table of Contents

USER INSTRUCTIONS
Valtek MaxFlo 4
Installation
Eccentric Rotary Plug Control Valve
Operation
Maintenance
FCD VLENIM0064-01-A4 – (11/15)
Experience In Motion

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Summary of Contents for Flowserve Valtek MaxFlo 4

  • Page 1 USER INSTRUCTIONS Valtek MaxFlo 4 Installation Eccentric Rotary Plug Control Valve Operation Maintenance FCD VLENIM0064-01-A4 – (11/15) Experience In Motion...

  • Page 2: Table Of Contents

    Between the actuator and The terms DANGER, WARNING, CAUTION, NOTE are used in the valve there are moving parts. To avoid injury, Flowserve this document to highlight particular dangers and/or to provide provides pinch-point-protection in the form of cover plates, additional information on points which may require particular especially where side-mounted positioners are fitted.

  • Page 3: Unpacking

    Fire protection must be provided by the user. clean. Flowserve will not accept deliveries if a certificate has not been provided (a form can be obtained from Flowserve). Check the direction of fluid flow to ensure that the valve is correctly installed.

  • Page 4: Quick-Check

    Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 4 Quick-Check Table I: Line Flange Bolting Specifications MaxFlo 4 flanged MaxFlo 4 flangeless Nominal Valve Size x Length Size x Length Pressure / Before commissioning, check the control valve by following these steps:...
  • Page 5 Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 Item 117 Packing box nuts  Item 109 Packing box studs  Item 80 Gland flange  Item 87 Packing follower  Item 114 Bonnet nuts  Item 108 Bonnet studs  Item 93 Packing spacer ...

  • Page 6: Valve Disassembly

    Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 Ensure all accessories, brackets and bolting are securely fastened. 6.10 Remove the shaft bearing (item 83) from the valve body. Use a suitable dowel to push the bearing out if necessary. Be If possible, remove air supply and observe actuator for correct careful not to damage the bearing.
  • Page 7 Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 7.10 Place the bonnet gasket (item 58) on the gasket step inside the 7.14 Tighten the bonnet and end post nuts evenly. Torque nuts to the body. Gently push the bonnet into the bonnet bore.

  • Page 8: Seat Replacement (No Shims)

    Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 8 Seat Replacement (No Shims) 9 Seat Replacement (With Shims) Determine if shims are required on the valve specification sheet. Determine if shims are required on the valve specification sheet. If shims are not required follow instructions in this section. If If shims are required follow instructions in this section.
  • Page 9 Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 Close the plug into the seat and then measure dimension “B” 9.10 Remove the seat and add the appropriate number of shims. as shown in figure 4b. 9.11 Apply lubricant to the threads of the seat retainer. Replace the...

  • Page 10: Actuator Remounting

    Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 Recommended plug rotation. Plug Recommended plug rotation ex- Maximum limit for plug rotation. The slightly under-rotated. ceeded. Setting should be avoided. plug should not be rotated further. Figure 5: positioning of plug Table IV: Shim Selection...

  • Page 11: Mounting Orientation - Air-To-Open - Diaphragm Actuator

    Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 11. Pipeline Mounting Orientations – Air-To-Open Configuration - Diaphragm Actuator AIR-TO-OPEN, FAIL CLOSE CONFIGURATION SHAFT DOWNSTREAM SHAFT UPSTREAM AIR TO OPEN AIR TO OPEN LEFT LEFT RIGHT RIGHT RIGHT RIGHT LEFT LEFT AIR TO OPEN...

  • Page 12: Mounting Orientation - Air-To-Close - Diaphragm Actuator

    Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 12 Pipeline Mounting Orientations – Air-To-CloseConfiguration - Diaphragm Actuator AIR-TO-CLOSE, FAIL OPEN CONFIGURATION SHAFT DOWNSTREAM SHAFT UPSTREAM AIR TO CLOSE AIR TO CLOSE LEFT LEFT RIGHT RIGHT RIGHT RIGHT LEFT LEFT AIR TO CLOSE...
  • Page 13 Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 Pipeline Mounting Orientations – Air-To-Open Configuration - Cylinder Actuator AIR-TO-OPEN, FAIL CLOSE CONFIGURATION SHAFT DOWNSTREAM SHAFT UPSTREAM AIR TO OPEN AIR TO OPEN LEFT LEFT RIGHT RIGHT BOTTOM BOTTOM RIGHT RIGHT LEFT LEFT...
  • Page 14 Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 14 Pipeline Mounting Orientations – Air-To-Close Configuration - Cylinder Actuator AIR-TO-CLOSE, FAIL OPEN CONFIGURATION SHAFT DOWNSTREAM SHAFT UPSTREAM AIR TO CLOSE AIR TO CLOSE LEFT LEFT RIGHT RIGHT BOTTOM BOTTOM RIGHT RIGHT LEFT...

  • Page 15: Troubleshooting

    Valtek MaxFlo 4 FCD VLENIM0064-01-A4 – 11/15 15 Pipe Mounting Orientation Codes 3 - Air Action 4 - Pipe Configuration 5 - Actuator Orientation 6 - Shaft Direction Air-to-open - ATO Left Hand Mounting Left Shaft Upstream Air-to-close - ATC...
  • Page 16 Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to Arabia 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 Phone: +966 3 857 3150 ext. 243 numerous applications under a wide variety of industrial service conditions.

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