Flanged valves are easy to install and disassemble, but flanged valves are bulkier and more expensive than threaded valves, so they are suitable for pipe connections of all sizes and pressures. Large size pipeline usually use the flanged connection. Flanged ball valves and flanged butterfly valves are widely used in wastewater treatment, paper and pulp, shipyard, and other applications which require flanged connection. Threaded Connection Valve Looking for a threaded valve?
Selection of Variable Spring Hanger Support. Procedure for Pneumatic Testing of Piping Systems. Volume Conversion - Convert Volume between various Units.
Pressure Conversion - Convert Pressure between various Units. Length Conversion - Convert Length between various Units. The threaded flange is screwed on to a pipe which has external taper pipe threads.
Threaded flanges are generally used for galvanized and cast-iron piping. Threaded flanges are subject to the requirements for threaded joints in accordance with para.
As per the requirements of this para. When using threaded flange the bending stresses in the piping system should be carefully evaluated due to possibility of leakage through the threads. Threaded flanges are available up to class rating and can be used for high pressure service at ambient temperatures.
The integrity of a threaded flange is less when compared to a weld-neck slip-on or socket weld flange. To prevent leakage through the threads a threaded flange may be seal welded. However, the seal weld is not considered to provide any strength to a threaded joint.
When threaded flanges are assembled with threaded-end pipe, the intent is for the end of the pipe be reasonably close to the mating surface of the flange. This is achievable in flanges up to class rating. This statement can be clarified with an example of inch flange. However, for threaded flanges in Class and higher ratings, the minimum thread length T through the hub of the flange exceeds the limitations of ASME B1. Read more Check Valve Check Valve - Introduction. Plug Valve Plug Valve - Introduction.
Butterfly Valve Butterfly Valve - Introduction. Diaphragm Valve Diaphragm Valve - Introduction. Strainer Strainers - Introduction. Steam Trap Steam Traps - Introduction. Expansion Joint Expansion Joints - Overview. Sight Glass Sight Glass - Introduction.
Flame Arrestor Flame Arresters - Introduction. Flange Guard Flange Guards - Introduction. Thus, they ultimately need less tightening torque than what a threaded end connection requires. Hence, flanged end connections can be effectively used for various types of valves.
Threaded Valve End Connections — These types of end connections are suitable for low pressure piping systems. These are affordable and ensure quick assembly to the users, without any difficulty.
In some cases, these connections may be welded around the joint, once they are assembled. Click Here to join Eng-Tips and talk with other members! Already a Member?
Join your peers on the Internet's largest technical engineering professional community. It's easy to join and it's free. Register now while it's still free! Already a member? Close this window and log in. Join Us Close. Are you an Engineering professional? Join Eng-Tips Forums! Join Us! By joining you are opting in to receive e-mail. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Students Click Here. Related Projects.
Flanged or threaded ends thread Hi people, I suppose that valves with flanged ends load higher pressure than valves with threaded ends.
Is it true?
0コメント