MSS Banner The Technical Voice of the Industry
View Larger Image


Bypass and Drain Connections

This Standard Practice establishes requirements for connections to valves and fittings to accommodate drains and bypasses in all pressure classes.
Specific requirements contained in this Standard Practice include: a) Standard symbols and locations of openings for drains and bypasses b) Standard sizes of drain and bypass openings c) Minimum pipe thread lengths in drain and bypass tapping’s d) Minimum diameter and depth of socketweld connection for drains and bypasses e) Butt-welding connections for drains and bypasses f) Bosses for drain and bypass connections g) Method for designating outlets of reducing fittings


Today is: Thursday
July 16, 2020

MSS Member Login

MSS Scholarships
(Now Accepting 2020 Applications)
Deadline Extended

MSS Apparel

We Accept:
VISA  MasterCard  American Express
Discover  Diners Club 
Site Secured by:

Like us on:

Accept Credit Cards Online