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Emerson Fisher ED, Инструкция по эксплуатации

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Instruction Manual Supplement

D103401X012

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

November 2017

12

Emerson Automation Solutions

Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore

www.Fisher.com

The contents of this publication are presented for informational purposes only, and while every 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 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 Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their
respective owners.

Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance
of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

Содержание Fisher ED

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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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