Stainless Steel Flanged Butterfly Valves are designed in accordance with API 609 with features of bi-directional、 lightweight 、cost-effective and low torque.

Double offset butterfly valves are manufactured to the latest edition of API Standard 609 and tested to API Standard 598.

Applicable Standards:

– Butterfly valve design according to API 609, ASME B16.34, EN593

– Face to face ASME B16.10/API 609

– End Flanges ASME B16.5/ASME B16.47

– Butt welding ends ASME B16.25

– Inspection and testing API 598



– ASME CL150


Temperature Range:

– 0°C~180°C


Size Range:

– 3″~200″


End Connection:

– Flanged, wafer, lug


Body Material:

– A216 WCB, A352 LCB, A217 WC6, A351 CF8, A351 CF8M



– electric, pneumatic, hydraulic, gearbox

Stainless Steel Flanged Butterfly Valve

Design Description:

– Low friction between seat and disc of valve

– “”Zero Leakage””Sealing Design

– One Piece Shaft

– Low torque enables the compact actuator and a long cycle life

– Blow-out proof shaft

– Optional stem extension

– Optional locking device

– Double offset butterfly valves creating the prominent strengths of long service life, small size, light weight, easy maintenance, etc.