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www.Fisher.com

Safety manual for Fisher

 ED, ES, ET, EW, EZ, 

or HP Valves

Purpose

This safety manual provides information necessary to design, install, verify and maintain a Safety Instrumented
Function (SIF) utilizing the Fisher ED, ES, ET, EW, EZ, or HP valve.

  WARNING

This instruction manual supplement is not intended to be used as a stand-alone document. It must be used in conjunction
with the following manuals:
Fisher ED and EAD easy-e™ Valves CL125 through CL600 Instruction Manual (

D100390X012

)

Fisher ES and EAS easy-e Valves CL125 through CL600 Instruction Manual (

D100397X012

)

Fisher ET and EAT easy-e Valves CL125 through CL600 Instruction Manual (

D100398X012

)

Fisher EZ easy-e Control Valve Instruction Manual (

D100401X012

)

Fisher EZ-C, ET-C, and EWT-C Cryogenic Control Valves Instruction Manual (

D102175X012

)

Fisher EWD, EWS, and EWT Valves through NPS 12x8 Instruction Manual (

D100399X012

)

Fisher Large ET/EWT and ED/EWD Valves NPS 12 through 30 Instruction Manual (

D103553X012

)

Fisher HP and HPA Control Valves Instruction Manual (

D101634X012

)

Failure to use this instruction manual supplement in conjunction with the above referenced manuals could result in
personal injury or property damage. If you have any questions regarding these instructions or need assistance in obtaining
any of these documents, contact your 

Emerson sales office

 or Local Business Partner.

Introduction

This manual provides information that is necessary for meeting the IEC 61508 or IEC 61511 functional safety
standards.

Figure 1. Fisher Valve with 667 Actuator

X1183

ED or ET Valve

EZ Valve with FIELDVUE

t

 

DVC6200 Digital Valve Controller

HP Valve with FIELDVUE 

DVC6200 Digital Valve Controller

X0183-1

ES Valve

W2174‐3

W2777

EW Valve

X1183

ED, ES, ET, EW, EZ, HP Valves

November 2017

Instruction Manual Supplement

D103401X012

Summary of Contents for Fisher ED

Page 1: ...175X012 Fisher EWD EWS and EWT Valves through NPS 12x8 Instruction Manual D100399X012 Fisher Large ET EWT and ED EWD Valves NPS 12 through 30 Instruction Manual D103553X012 Fisher HP and HPA Control Valves Instruction Manual D101634X012 Failure to use this instruction manual supplement in conjunction with the above referenced manuals could result in personal injury or property damage If you have a...

Page 2: ...hout a demand from the process Fail Dangerous Failure that does not respond to a demand from the process i e being unable to go to the defined fail safe state Fail Dangerous Undetected Failure that is dangerous and that is not being diagnosed by automatic stroke testing Fail Dangerous Detected Failure that is dangerous but is detected by automatic stroke testing Fail Annunciation Undetected Failur...

Page 3: ...esults in either a safe fault or a diagnosed unsafe fault SIF Safety Instrumented Function a set of equipment intended to reduce the risk due to a specific hazard a safety loop SIL Safety Integrity Level discrete level one out of a possible four for specifying the safety integrity requirements of the safety functions to be allocated to the E E PE safety related systems where Safety Integrity Level...

Page 4: ...ion Manual D102175X012 51 1 EW Fisher EW Series EWD EWS EWT Sliding Stem Control Valves through NPS 12x8 Bulletin D100023X012 Fisher EWD EWS and EWT Valves through NPS 12x8 Instruction Manual D100399X012 51 1 ET ED Large Fisher ED EWD and ET EWT Valves NPS 12 through 30 Bulletin D103554X012 Fisher Large ET EWT and ED EWD Valves through NPS 12 through 30 Instruction Manual D103553X012 51 2 HP Fishe...

Page 5: ...can be improved to Class VI Fisher ET single port control valves have balanced plugs and cage guided trim for all general applications with process temperatures up to 316 C 600 F They are available in sizes ranging from NPS 1 to 30 and pressure ratings up to CL600 in several different body configurations including ET and EAT D ET Globe body sliding stem valve with Push Down To Close action D EAT A...

Page 6: ... Close valve for applications with process temperatures up to 316 C 600 F In small to medium sizes these valves utilize a clamped trim design meaning that the cage and seat ring are clamped into the body using compression from the valve bonnet In large sizes the trim is hung in the valve body and the seat ring bolted into the valve body EWD constructions or screwed into the cage EWT constructions ...

Page 7: ...alve does not perform any automatic diagnostic functions by itself and therefore it has no diagnostic response time of its own However automatic diagnostics of the final control subsystem may be performed such as Partial Valve Stroke Testing PVST This typically will exercise the valve over a small percentage of its normal travel without adversely affecting the flow through the valve If any failure...

Page 8: ...of 0 The complete final element subsystem with a Fisher valve as the final control element will need to be evaluated to determine the Safe Failure Fraction of the subsystem If the SFF for the entire final element subsystem is between 60 and 90 a design can meet SIL 2 HFT 0 Safety Parameters For detailed failure rate information refer to the Failure Modes Effects and Diagnostic Analysis Report for ...

Page 9: ...ard practices outlined in the appropriate instruction manual The environment must be checked to verify that pressure and temperature conditions do not exceed the ratings The ED ES ET EW EZ or HP valve must be accessible for physical inspection Table 1 Recommended Full Stroke Proof Test Step Action 1 Bypass the safety function and take appropriate action to avoid a false trip 2 Interrupt or change ...

Page 10: ... maintain the required Safety Integrity of the Safety Instrumented Function The proof test shown in table 1 is recommended The results of the proof test should be recorded and any failures that are detected and that compromise functional safety should be reported to Emerson Process Management The suggested proof test consists of a full stroke of the ED ES ET EW EZ or HP valve The person s performi...

Page 11: ...defined and documented Routing of pneumatic connections determined SIS logic solver requirements for partial stroke tests defined and documented Design formally reviewed and suitability formally assessed Implementation Physical location appropriate Pneumatic connections appropriate and according to applicable codes SIS logic solver valve actuation test implemented Maintenance instructions for proo...

Page 12: ...which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice E 2010 2017 Fisher Controls International LLC All rights reserved Fisher FIELDVUE and easy e are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co Emerson Automation Solutions Emerson and the ...

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