Wafer Butterfly Valve with Single Acting Pneumatic Actuator

Size:12inch
Pressure Rating:150LB
Body: A351 CF8M   
Disc:A351 CF8M    
Seat:A276 420 or SS
FITTED WITH PNEUMATIC SPRING RETURN ACTUATOR,
FAIL CLOSED AND 4-20MA ELECTRO PNEUMATIC POSITIONER


Standards
Design and Manufacture: API609
Face to Face: ANSI B16.10
Flanged EndsANSI B16.5, ANSI B16.47 A Series & B Series
Inspection and Test: API598

Features
With laminated seat ring:Zero leakage sealing in bi-directional(As per DIN Class I or ANSI Class V)
With massive seat ring:Bi-directional tight seating(As per ANSI Class V)
Be excellent for isolation and control of gases and liquids
Having long service life with welded-in stainless steel or stellited body seat.
No friction,wear and galling in the seat(compression only)
Be easily replaceable and adjustable seal ring
Be applicable to harsh working condition such as high temperature,high pressure and corrosive conditions
Self-compensating for process temperature variances
Low operation torque and reliable seated torque
Inherent fire-safe design.