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APPLY LUB

Figure 2.

 Type 66Z Regulator

Type 66, 66Z and 66ZZ

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Emerson Automation Solutions

For further information on the current 

PED revision see Bulletin: 

D103053X012

or scan the QR code.

Fisher.com

Americas

 

McKinney, Texas 75070 USA 

T   +1 800 558 5853 

+1 972 548 3574

Europe

 

Bologna 40013, Italy 

T  +39 051 419 0611

Asia Pacific

 

Singapore 128461, Singapore 

T  +65 6777 8211

Middle East and Africa 

Dubai, United Arab Emirates 

T  +971 4 811 8100

D100247X014 © 2002, 2018 Emerson Process Management Regulator 

Technologies, Inc. All rights reserved. 09/18. 

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.

Summary of Contents for FISHER 66

Page 1: ...ng Pressure Type 66 66Z or 66ZZ 0 55 bar 8 psig positive pressure 66 Series Vacuum Regulator 1 01 bar differential 14 7 psi or 29 9 in Hg vacuum 66 Series Vacuum Breakers 0 55 bar differential 8 psi or 16 3 in Hg vacuum Maximum Safe Pressure to Avoid Internal Parts Damage Type 66 66Z or 66ZZ 0 07 bar differential 1 psig above outlet pressure setting 66 Series Vacuum Regulator No more than 0 07 bar...

Page 2: ... 3 4 in NPT control line to the lower diaphragm casing connection from the point where the downstream pressure is to be sensed Overpressure Protection The recommended pressure limitations are stamped on the regulator nameplate Some type of overpressure protection is needed if the actual inlet pressure exceeds the maximum operating outlet pressure rating Overpressure protection should also be provi...

Page 3: ... Vent Assembly 31 Pipe Plug not shown 34 Washer 35 Gasket 36 Washer Types 66 and 66Z only 37 Sealing Washer 38 Counter Spring Type 66Z only 43 Spring Retainer Type 66ZZ only 44 Set Screw for Type 66 with external control line and adjustable travel stops 45 Hex Nut for Type 66 with external control line and adjustable travel stops 46 Adjusting Screw Cap for Type 66 with external control line and ad...

Page 4: ...he 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 ...

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