API LUG style triple offset butterfly valve is one kind of ZFV's main products. LUG is a end connection type, body hole of LUG butterfly valve may be threaded hole, if needed, the hole can be throught hole without screw in it.
Standards of ZFV API LUG style triple butterfly valve:
Design and manufacturing: API609
Face to face length: API609
Connection dimension: ASME B16.5 & ASME B16.47
Test and inspection: API598
Available material of ZFV API LUG style triple butterfly valve: ASTM A216 WCB, ASTM A351 CF8, ASTM A351 CF8M, ASTM A890 4A, ASTM A217 WC6, ASTM A217 C12, ASTM A352 LCB, etc.
Operation type of ZFV API LUG style triple butterfly valve: Manual handle operator, worm gear with handwheel operator, electric actuator operator, pneumatic actuator operator, etc.
Installation of ZFV API LUG style triple butterfly valve: because of it's threaded body hole construct, the LUG valve can be installed into a pipeline systom using two sets bolts and no nuts, if needed only need one set nut. The valve can be installed between two flanges using a seperate set of bolts for each flange. So either side of the piping system do not disturb the other side .
Diameter of ZFV API LUG style triple butterfly valve: NPS 2-80 inch, pressure class150 - class600.
There are two type connection flange dimension for valve size larger than NPS24 inch, ASME B16.47 A series and ASME B16.47 B series. The price of A series valve and B series valve are differen because different dimensions and different weight .