Baker Hughes Masoneilan VariPak 28000 Series Instruction Manual
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Baker Hughes Masoneilan VariPak 28000 Series Instruction Manual

Adjustable-cv control valves
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Masoneilan*
28000 Series VariPak*
Adjustable-C v Control Valves
Instruction Manual (Rev. B)
BHGE Data Classification : Public

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Summary of Contents for Baker Hughes Masoneilan VariPak 28000 Series

  • Page 1 Masoneilan* 28000 Series VariPak* Adjustable-C v Control Valves Instruction Manual (Rev. B) BHGE Data Classification : Public...
  • Page 2 THESE INSTRUCTIONS PROVIDE THE CUSTOMER/OPERATOR WITH IMPORTANT PROJECT-SPECIFIC REFERENCE INFORMATION IN ADDITION TO THE CUSTOMER/OPERATOR’S NORMAL OPERATION AND MAINTENANCE PROCEDURES. SINCE OPERATION AND MAINTENANCE PHILOSOPHIES VARY, BHGE (BAKER HUGHES, A GE COMPANY) AND ITS SUBSIDIARIES AND AFFILIATES) DOES NOT ATTEMPT TO DICTATE SPECIFIC PROCEDURES, BUT TO PROVIDE BASIC LIMITATIONS AND REQUIREMENTS CREATED BY THE TYPE OF EQUIPMENT PROVIDED.

  • Page 3: Table Of Contents

    5.8 Converting a 7700P Positioner (Pneumatic) into a 7700E Positioner (Electro-Pneumatic) ....20 © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 3...
  • Page 4 • All surrounding pipe lines must be thoroughly flushed to ensure property damage. all entrained debris has been removed from the system. CAUTION Note: Indicates important facts and conditions. DANGER DANGER DANGER DANGER © 2018 Baker Hughes, a GE company. All Rights Reserved. 4 | BHGE...

  • Page 5: General

    1. General These installation, operation, and maintenance instructions apply to Masoneilan VariPak 28000 series control valves. They also include a parts reference list with recommended spare parts. IMPORTANT REMARKS Before installing, operating, or performing maintenance on this equipment, you should read these instructions carefully and make sure you have understood them.

  • Page 6: Operation

    0.035 0.040 0.045 0.050 0.10 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.25 0.10 0.13 0.16 0.19 0.21 0.23 0.25 0.25 0.30 0.35 0.45 0.55 Figure 1 © 2018 Baker Hughes, a GE company. All Rights Reserved. 6 | BHGE...
  • Page 7 1.4 (20) 1.4 (20) (20) (25) 0.010 to 0.004 1035 0.004 to 0.0016 Figure 3 - Actuator spring ranges and supply pressures © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 7...

  • Page 8: Actuator

    The block is guided by the actuator bracket (108). Figure 4 - Adjusting the of VariPak 28002 valve for each plug/ seat ring combination Figure 5 © 2018 Baker Hughes, a GE company. All Rights Reserved. 8 | BHGE...

  • Page 9: Reversing The Valve Action

    (see figure 6). D. Unlock nut (117) and completely loosen screw (116). Unhook spring (114) from spring clamp (115). © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 9...
  • Page 10 VariPak 28001 with single lever VariPak 28002 with adjustable C v (2 levers) *Only with type 7700 positioner Figure 6 - Identification of lever pivot pin holes © 2018 Baker Hughes, a GE company. All Rights Reserved. 10 | BHGE...

  • Page 11: Installation

    Fit the bolts and tighten in criss-cross Fit gaskets compatible with service conditions between the fashion. valve body and the pipe flanges. © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 11...

  • Page 12: Pneumatic And Electrical Circuit

    7700P or 7700E positioners can be installed on both VariPak 28001 single-lever and VariPak 28002 adjustable-C v valves. Figure 13 - Limit switch installation Figure 11 - Connections with 7700P positioner © 2018 Baker Hughes, a GE company. All Rights Reserved. 12 | BHGE...

  • Page 13: Calibration

    4.1.2 Adjusting the piston rod clevis on the Figure 15 - Presetting the plug stem position Figure 14 - Piston rod clevis (104b) adjustment © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 13...

  • Page 14: Limit Stop Adjustment

    B. Hold the limit stop with a 12 mm wrench and tighten a 25 mm shim for an Air-to-Close actuator. Release the air locknut (181). Release the air pressure. pressure after inserting the shim. © 2018 Baker Hughes, a GE company. All Rights Reserved. 14 | BHGE...

  • Page 15: Varipak 28002 C V Adjustment

    Refit diaphragm cover (137) with the four screws (139) and reconnect the tubing with the two pressure connection nuts (138a). Check that all connections are leaktight. © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 15...

  • Page 16: Disassembly

    Shut off signal and supply pressure. Slightly tighten locknut (103) against the clevis. © 2018 Baker Hughes, a GE company. All Rights Reserved. 16 | BHGE...

  • Page 17: Reassembly

    (see figure 20). Note: Measuring this distance can be simplified by fitting pins (105), (184) and (18) into their holes. © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 17...
  • Page 18 (see "Calibration", section 4.2.1). Then an Air-to-Close actuator is used, the spring must be hooked to continue from step M. of the VariPak 28002 procedure. the bottom hole (see figure 6). © 2018 Baker Hughes, a GE company. All Rights Reserved. 18 | BHGE...

  • Page 19: Packing Quick Change Method (Only For Valves With Max. C V Of 0.6 To 3.8)

    B Remove safety pin (11) from the valve body. The safety pull tubing (140) out. pin stub engages with the hole in packing spacer (5). The DANGER © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 19...

  • Page 20: Maintenance Operations Specific To The 7700E Positioner

    Note: To ensure correct positioner performance, check that H. Fit O-ring (153), shims (145), pilot valve assembly, gasket all gaskets are perfectly leaktight. © 2018 Baker Hughes, a GE company. All Rights Reserved. 20 | BHGE...

  • Page 21: Converting A 7700P Positioner (Pneumatic) Into A 7700E Positioner (Electropneumatic)

    Otherwise, simply check that parts are in perfect condition before refitting. CAUTION Handle the shims carefully (145). DANGER © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 21...
  • Page 22 E.P. positioner (fig. 5). and157). Δ Only for pneumatic positioner. Only for optional limit-switch adaptation: quantity ■ Not shown. given for two limit switches (see fig. 13). See Figure 2. © 2018 Baker Hughes, a GE company. All Rights Reserved. 22 | BHGE...
  • Page 23 Figure 25 - Cross-section of the VariPak 28001 single-lever actuator and the 7700E positioner Figure 26 - Partial cross-section of VariPak 28001 single-lever, air-to-open valve © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 23...
  • Page 24 © 2018 Baker Hughes, a GE company. All Rights Reserved. 24 | BHGE...
  • Page 25 , air-to-open valve Figure 29 - Coupling detail of levers No. 1 and 2 Figure 28 - Partial top view © 2018 Baker Hughes, a GE company. All Rights Reserved. Masoneilan VariPak Control Valve Instruction Manual | 25...
  • Page 26 The BHGE logo is a trademark of Baker Hughes, a GE company LLC. GE and the GE monogram are trademarks of the General Electric Company used under trademark license.

This manual is also suitable for:

Masoneilan varipak 28002Masoneilan varipak 28001Masoneilan varipak 28000 series

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