Pneumatic concentric wafer butterfly valve introduction:
Pneumatic concentric wafer butterfly valve is wafer type with double or single acting pneumatic actuator,simple structure, small volume, light weight, low cost,Pneumatic concentric wafer butterfly valve fully open the effective flow area is larger, easy opening and closing fast, disc pull rotation Angle of 90 to complete opening and closing, due to the rotation axis disc plate hand medium force nearly equal, and the torque in the opposite direction, thus opening and closing torque is small, low pressure can achieve good sealing,Pneumatic concentric wafer butterfly valvesealing material is nitrile butadiene rubber, fluorine rubber, rubber, four fluorine lining so sealed performance is good.
Pneumatic concentric wafer butterfly valve is  widely used in building materials, metallurgy, mining, power and other production process medium temperature ≤100℃ nominal pressure of 0.1Mpa on the pipeline, for connecting, opening and closing or regulating medium quality.

Pneumatic concentric wafer butterfly valve specification
Product name: Pneumatic concentric wafer butterfly valve
Product model: D671J-10
Material of valve body: QT450, WCB, 304 stainless steel, 316 stainless steel, 316L stainless steel
Spool material: 304 stainless steel, 316 stainless steel, 316L stainless steel
Valve seat material: rubber (normal temperature), hard alloy steel (high temperature)
Body pressure: 1.6mpa - 2.5mpa
Valve body temperature resistance: -29℃-300℃
Connection: clamping, perforating clamping
Driving mode: manual, electric, pneumatic

Pneumatic concentric wafer butterfly valve technical parameter

Optional functions of electric actuator	double acting, single acting
Optional models of electric actuator	AT series, AW series
Voltage	AC110V, AC220V, AC24V,DC24V
Air source pressure	2bar-8bar
Nominal diameter	DN25mm ~ DN1200mm
Nominal pressure	PN1.0MPa~PN1.6MPa
Applicable temperature	NBR: -9~+80℃ EPDM: -30~+120℃ PTFE:-30~ +180℃
Connection mode	flange type
Body material	carbon steel, stainless steel,etc,
Valve plate material	Ductile iron,304, 316, 316L, 2507, 1.4529, copper, etc
Seat lining	NBR, EPDM, PTFE
Suitable medium	water liquid, gas, slurry, oil, etc.