Butterfly valve Selection method

The selection of butterfly valve mainly refers to the valve body material, valve plate material, valve seat material, valve diameter and other parameters.

Body materialDisc materialSeat materialBody styleFlange  accommodationSizeOperator type
Cast iron
Ductile iron
Stainless steel
WCB
ASTM A536 65-45-12 Nylon coated,
CF8
CF8M
2507
1.4462
EPDM
NBR
FRM
PTFE
Wafer
Lug
Flange
EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN10/ PN16
JIS 5K/10K
DN50-DN2000
2”-80”
Hand lever,
gear box, pneumatic actuator, electric actuator