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Figure 6.

 Type CT88 Body Assembly for NPS 3 and 4 / DN 80 and 100

D104030X012 © 2014, 2019 Emerson Process Management Regulator 

Technologies, Inc. All rights reserved. 05/19. 

The Emerson logo is a trademark and service mark of Emerson 

Electric Co. All other marks are the property of their prospective owners. 

Fisher™ is a mark owned by Fisher Controls International LLC, a 

business of Emerson Automation Solutions.
The contents of this publication are presented for information purposes 

only, and while effort has been made to ensure their accuracy, they are 

not to be construed as warranties or guarantees, express or implied, 

regarding the products or services described herein or their use or 

applicability. All sales are governed by our terms and conditions, which 

are available on request. We reserve the right to modify 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.

Type CT88

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Emerson Automation Solutions

Americas 

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Содержание Fisher CT88

Страница 1: ...tion Only a qualified person must install or service the unit Installation operation and maintenance procedures performed by unqualified personnel may result in improper adjustment and unsafe operation Either condition may result in equipment damage or personal injury Figure 1 Type CT88 Use qualified personnel when installing operating and maintaining the Type CT88 backpressure regulator Introduct...

Страница 2: ...pressures contact the factory 3 It may be assumed that the material temperature is the same as the working fluid temperature 4 Maximum inlet pressure depends on working temperature Refer to ASME B16 42 or Table 1 5 Fluorocarbon FKM is limited to 200 F 93 C for hot water 6 Increased working temperature may reduce the maximum inlet pressure range Refer to ASME B16 42 or Table 1 Principle of Operatio...

Страница 3: ...n to permit free flow of gas to the atmosphere Protect openings against entrance of rain snow insects or any other foreign material that may plug the vent Do not install the Type CT88 backpressure regulator in hazardous or flammable service indoors or in an enclosure where accumulation of vented fluid may occur In hazardous or flammable fluid applications vented fluid may accumulate and cause pers...

Страница 4: ...esult if this backpressure regulator is Overpressurized Used with incompatible process fluid Installed where service conditions could exceed the limits given in the Specifications section and on the appropriate nameplate or Where conditions exceed any ratings of adjacent piping or piping connections To avoid such injury or damage provide pressure relieving or pressure limiting devices to prevent s...

Страница 5: ...lator damage personal injury and property damage To avoid such injury and property damage make certain the bleed plug is properly closed after bleeding process fluid 1 Close the inlet block valve see Figure 2 2 Close the outlet block valve 3 Turn the adjusting screw counterclockwise until all spring force from the backpressure regulator has been removed 4 Slowly open the outlet block valve to rele...

Страница 6: ...sembly drawing Actuator Disassembly 1 Isolate the Backpressure Regulator relieve all pressure in body and actuator and relieve spring force by following the procedure described in the Shutdown section 2 Loosen and remove sense line from diaphragm lower casing key 54 3 Loosen and remove 8 bolts key 58 8 nuts key 57 and 8 washers key 8 around the actuator flange 4 Lift the upper casing key 59 direct...

Страница 7: ...agm casing and lower diaphragm casing 11 Apply lubricant to the thread of 8 bolts key 58 and insert the bolts down through the upper diaphragm casing key 59 then through the lower diaphragm casing key 54 12 Place 8 washers key 8 and 8 nuts key 57 onto the 8 bolts key 58 from below the lower diaphragm casing key 54 Tighten the nuts and bolts using a multi pass criss cross pattern Torque values list...

Страница 8: ...ng a multi pass criss cross pattern by using a torque wrench Torque values are listed in Table 4 Parts Ordering When corresponding with your local Sales Office about this regulator include the type number and all other pertinent information stamped on the nameplate Specify the part name when ordering new parts from the following parts list Separate repair part kits containing all recommended elast...

Страница 9: ...carbon FKM 11 O ring Fluorocarbon FKM 12 Bonnet Carbon steel 13 Bolt 8 required Steel 14 Stem Stainless steel 15 O ring Fluorocarbon FKM 16 Screw 4 required Stainless steel 17 Spring Washer 4 required Stainless steel 18 Cage Stainless steel 19 Plate Stainless steel NPS 3 DN 80 NPS 4 DN 100 20 Bushing Stainless steel 21 Stem Guide 2 required PTFE 22 O ring Fluorocarbon FKM 23 O ring Fluorocarbon FK...

Страница 10: ...53 52 51 50 30 44 60 34 37 58 48 59 57 56 36 68 17 16 54 55 8 65 BLEED PLUG DETAIL D 66 DETAIL D Figure 4 Type CT88 Actuator Assembly 10 Type CT88 ...

Страница 11: ...31 30 61 16 17 15 14 13 8 12 11 10 9 7 6 4 3 2 1 5 K H 24 29 21 23 20 22 DETAIL H DETAIL K 18 Figure 5 Type CT88 Body Assembly for NPS 2 DN 50 11 Type CT88 ...

Страница 12: ...ein or their use or applicability All sales are governed by our terms and conditions which are available on request We reserve the right to modify 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 select...

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