MSS SP91 1996阀门手动操作指南(英文).pdf

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资源描述
SSSPー91日5?7ロもD50】55D?
SP-91
199y
Edit
Reaffn
1996
MSS
GUIDELINES FOR MANUAL
OPERATION OF VALVES
pproved
by the
Manufacturers Standardization Society
the
Id Fittings Industry
27 Park Street.、N.E.
Vienna. Virginia 22180
(703)281-6613
Originally Approved 1980
COPYRIGHT Manufacturers Standardiza t
Society of the Vaive and Fittings
工 icensed by Information Handユ1 ag services
MSS SP-9] 9
5770b?ロ050もJ吕?ロ
MSS
STANDARD PRACTICE
SP-91
An MSS Standard Practice is intended as a basis for common practice
y the manufacturer, the user, and the general public. The existence of
an MSS Standard Practice does not in itself preclude the manufacture
sale, or use of products not conforming to the Standard Practice. Man
datory conformance is established only by reference in a code, specifica
tion, sales contract, or public law, as applicable
U.S. customary units in this SP are the standard; the metric units are for refer-
ence only.
Other standards documents referred to herein are identified by the date of issue
that was applicable to this standard at the date of issue of this standard. This
standard shall remain silent on the applicability of those other standards of prior
or subsequent dates of issue even though provisions of concern may not have
changea
Any part of this standard ma be quoted. Credit lines should readexraeed frommsssp-91, 1992(R 1996)
facturers Sta
tion Societ y. ' Reproducti
prohibited
copyright convention unless written permission is granted by the Manufacturers Standardization Society of the
Yalve and Fittings Industry, Inc
Copyrights, 1984 b
Manufacturers Standarization Society
Valve and Fittings Industry, Inc
the U. SA
COPYRIGH Manufacturers standardization Society of the vaive and Fittings
Licensed by Information Handling Services
MSS SP-91与577D日?ロD50ロム177る7
MSS
STANDARD PRACTICE
SP-91
FOREWORD
The handwheels or handles proied with manually actuated valves are designed so that reasonable effort ex
ed by the operator(s)is sufficient to actuate. However, o
of manually controlled valves is d
on many factors, such as fluid pressure and temperature, location of valve in relation to operators, desired speed
of operation, physical capabilities of operators, ambient conditions and frequency of operation. Suitability of
valves with manual actuators should therefore be evaluated by the purchaser, based upon anticipated on-site
conditions. This document was prepared to assist users in establishing actual requirements relative to valve
operation. Most valves can be provided with actuators suitable for specific service conditions, regardless of
severity, when conditions are defined
COPYRIGHT Manufacturers standardization Society of the vaive and Fittings
工 rented by Information Hand1ュ ng Services
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