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MSS SP-67-2017

MSS SP-67-2017

$31.20

Butterfly Valves

Published By Publication Date Number of Pages
MSS 2017-05-01 23
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Full Description

SCOPE

This Standard Practice covers dimensions, design, testing, and marking requirements for butterfly
valves. Further reference should be made to the MSS SP-68.

This Standard Practice covers two types of butterfly valves:

—Type I – Valves for tight shut-off (Tested per Section 10.2.1)

—Type II – Valves permitting seat leakage (See Section 10.2.2)

This Standard Practice covers flangeless (wafer-type), single-flange (lug-type), and flanged-end
valves in size NPS 1? through NPS 72, along with grooved-end valves, and shouldered-end valves,
with pressure ratings in accordance with the requirements of Sections 3 and 4.

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MSS SP-67-2017
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