Is it necessary to install a drain line in front of the check valve on the pump outlet pipeline?
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Dear experts: The layout of the pump outlet pipeline is as shown in the attached diagram. Under normal conditions, there is a drain line behind the check valve. If the pump stops operating, how should the fluid in the pipeline ahead of the check valve be drained? Is it necessary to add a drain line? Thank you
No need; use nitrogen – just pump air to blow the medium out, that’s all!
There is an error in the figure. ，，，，，，，
The drawing is good. Could you send me the 3D CAD file to my email so I can study it? Thanks! 1064736607@qq.com
Could you send the 3D CAD to my email so I can study it? Thanks, 120760854@qq.com
There is no need to add a guide drain at the corner; why is the check valve located in front of the globe valve?
The corner drain is a pilot drain in front of the control valve; it is necessary that there be a check valve first, followed by a shut-off valve at the pump outlet