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DB&B VALVES 2010-10-19
Application of double block & bleed valves,single block & bleed valves ; where and for what working classes these are necessary ?
Why use ball valves not gate valve. 2010-10-19
It appears the general trend of this thread is going in the right direction, but I will add my 2-cent's worth (after adjusting for inflation)
Gate valves were invented many years ago.
Blowoff Valve on Water Main 2010-10-19
Looking for the proper type of valve to install to bleed pressure off water mains when they have to be taken down for maintenance
Bubble Tight Shutoff definition 2010-10-18
Bubble-tight is a relevant term if applied to a certain set of conditions. It must be explained that way.
Difference between "CLASS" and "LBS" in "Valves" 2010-10-18
How the flange rating of the valve must be mentioned with "CLASS" or "LBS"
Example: CL 150 or 150 LBS
Impact type handwheel 2010-10-18
An impactor handwheel has a crossarm that is directly coupled to the valve stem. The handwheel pushes against the crossarm to apply the torque.
Definition of wear travel of gate valve in API 600 2010-10-18
Recall that this API 600 requirement is for a wedge gate valve. As the name implies, a wedging force is used to accomplish sealing. To accomplish the minimum seating force for sealing.
Blowoff Valve on Water Main 2010-10-18
Looking for the proper type of valve to install to bleed pressure off water mains when they have to be taken down for maintenance.
