butterfly valve bottom cover repetative leak
butterfly valve bottom cover repetative leak
(OP)
I'm seeking your support to findout the reason of the repetative leak from the bottom cover in butterfly valve in our site.
the process is low temp hydrocarbon and frequently leaking from the bottom cover.
the fluid pressure is around 800 psig. however we don't have any leakage from the flanges while they are (flange gasket and bottom cover gasket) are the same type.
the process is low temp hydrocarbon and frequently leaking from the bottom cover.
the fluid pressure is around 800 psig. however we don't have any leakage from the flanges while they are (flange gasket and bottom cover gasket) are the same type.





RE: butterfly valve bottom cover repetative leak
RE: butterfly valve bottom cover repetative leak
RE: butterfly valve bottom cover repetative leak
RE: butterfly valve bottom cover repetative leak
So the bolts of botton cover don't works for thightness.
If during the hidrostatic test you got approval of the valve, the problem is the valve design for low temperature and material selection.