Products

September 17, 2010

Lug style Butterfly Valve

Butterfly valve include wafer type butterfly valve and lug style butterfly valve.  The valve body and disc material is ductile iron or cast gray iron.

PN10/PN16 Pressure rate
Size: DN50 – DN600;
100% hydraulic pressure testing;
Epoxy coating or primer painting.

Lug Style Butterfly Valve

Lug Style Butterfly Valve

EPDM/NBR/VITON valve seat;
Cast iron handle/lever operation or gearbox.

Lug-style valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.

A lug-style butterfly valve used in dead end service generally has a reduced pressure rating. For example a lug-style butterfly valve mounted between two flanges has a 150 psi pressure rating. The same valve mounted with one flange, in dead end service, has a 75 psi rating.

Cast iron valve include gate valve, butterfly valve, check valve, strainer and ball valve. The body material is cast gray iron or ductile iron.

Cast Iron Valves
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