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Butterfly valves inside manholes/chambers 2010-11-15
If butterfly valve will be installed inside manhole, what is the best coating for this application to protect the valve from corrosion,do we need to paint this valve with epoxy
4" 150# lug Butterfly valve 2010-11-15
4" 150# Lug Butterfly Valve on a chilled water return line that is leaking past the seat. I asked the owner and only the CHW with a rust inhibitor and am anti-bacterial agent are present.
Part-turn pneumatic actuators 2010-11-15
What is the design life for a part-turn pneumatic actuator operating butterfly valves?. What is a endurance test for pneumatic actuators containg? What is the method?
Velocity damages butterfly valve liner 2010-11-15
If the flow velocity increases to a certain value, the EPDM liner of butterfly valve will be damaged according to the catalog.
Butterfly valve failure causing Nuclear Submarine sinking 2010-11-15
I'm talking about "The Hunt for Red October" novel by Tom Clancy*, where the sinking of the fictional Soviet submarine "Politovskij" is described.
Rubber lined butterfly valve failures 2010-11-12
Rubber lined (carbon steel bodied) butterfly valves we have installed in a sulphate reducing package (sea water filtered to 5 microns with occasional acid and alkali washes).
Butterfly valve disc/shaft connection 2010-11-12
According to API609, the butterfly valve shaft to disc connection shall be designed to prevent loosening due to vibration. What will happen if loosening occur?
New design of Butterfly valve 2010-11-12
Patented and am now manufacturing a new kind of butterfly valve. The design was geared towards a plastic valve that would be used on an outlet to a storage tank
