Emerson Fisher Y696VR Series Instruction Manual Download Page 8

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Technologies, Inc. All rights reserved. 01/19. 

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Emerson Process Management Regulator Technologies, Inc. product 

remains solely with the purchaser.

A7176

TYPE Y696VRM BODY AND STEM ASSEMBLY DETAIL

Figure 3. 

Types Y696VR and Y696VRM Vacuum Regulator Assemblies (continued)

Y696VR Series

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Summary of Contents for Fisher Y696VR Series

Page 1: ... may result in equipment damage or personal injury Use qualified personnel when installing operating and maintaining the Y696 Series regulator Introduction Scope of Manual This manual describes and provides instructions and parts lists for the Type Y696VR and the Type Y696VRM vacuum regulators Instructions and parts lists for other equipment used with these breakers are found in separate manuals P...

Page 2: ...he body and have a face to face dimension of 14 in 356 mm Body Sizes and End Connection Styles 1 See Table 1 Maximum Allowable Emergency Inlet Casing Pressure 2 15 psig 1 03 bar Maximum Allowable Pressure Without Internal Parts Damage 2 8 psig 0 55 bar Maximum Downstream Pressure 2 Full Vacuum Vacuum Control Pressure Ranges 2 See Table 2 Wide Open Flow Coefficients Cg 515 Cv 14 7 C1 35 IEC Sizing ...

Page 3: ...d restore the vacuum to its original setting On the Type Y696VR the controlled pressure registers directly into the diaphragm casing The Type Y696VRM has a control line connecting the diaphragm casing to the vacuum being controlled and an O ring stem seal blocking the throat allowing for registration only through the control line connection Startup and Adjustment To place the vacuum regulator in o...

Page 4: ...control spring diaphragm assembly valve stem and stem O ring All pressure must be released from the diaphragm case before these steps can be performed Key numbers are referenced in Figure 3 Type Y696VR Vacuum Regulator 1 Remove the closing cap key 3 and turn the adjusting nut key 2 counterclockwise until all compression is removed from the control spring key 1 If the only further maintenance is to...

Page 5: ...ep 10 2 Remove the spring case cap screws key 21 and hex nuts key 22 and remove the spring case key 23 3 Remove the diaphragm key 5 and attached parts by tilting it so the pusher post key 8 slips off the lever assembly key 9 To separate the diaphragm key 5 from the attached parts unscrew the diaphragm hex nut key 37 If the only further maintenance is to replace the diaphragm parts or change the co...

Page 6: ...1A309324122 NACE 1A309338992 Recommended Spare Parts Hastelloy C is a mark owned by Haynes International Inc 4 To replace the lever assembly key 9 remove the machine screws key 11 and lever pin 5 To replace the valve stem key 13 or stem seal O ring key 15 remove the valve stem from the diaphragm casing 6 Lightly grease the new stem seal O ring key 15 and install on the valve stem key 13 Install th...

Page 7: ...em Stainless steel standard 0L025135032 Stainless steel NACE 0L0251X0022 Hastelloy C 0L0251X0012 41 Valve Spring 303 Stainless Steel standard 0D002827022 316 Stainless Steel NACE or Hastelloy C 10B6027X012 44 Upper Spring Seat 1 to 3 in w c 2 to 7 mbar 1A869524092 1 1 2 to 5 in w c 4 to 12 mbar 1A869524092 3 to 8 in w c 7 to 20 mbar 1A869524092 8 to 16 in w c 20 to 40 mbar 1A869524092 16 to 32 in ...

Page 8: ...ify or improve the designs or specifications of our products at any time without notice Emerson Process Management Regulator Technologies Inc does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management Regulator Technologies Inc product remains solely with the purchaser A7176 TYPE Y696V...

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