Wafer type pneumatic butterfly valve

Standard technical parameters
Wafer type pneumatic butterfly valve body
Nominal diameter: DN40-DN1000
Body material: Ductile iron, 304, 316
Connection method: wafer type, flange type, lug wafer type
Pressure level: PN1.0MPa, PN1.6MPa
Structure form: midline structure

In-valve components
Wafer type pneumatic butterfly valve Seat seal: EPDM: -30 ℃ ～ 120 ℃
NBR: -30 ℃ ～ 80 ℃
PTFE: -30 ℃ ～ 140 ℃
VITON: -30 ℃ ～ 150 ℃
Valve plate material: Ductile iron nickel plated, nylon coated, aluminum bronze, 304, 316
316L, 1.4529, 2507
Stem material: stainless steel 410, 304
Applicable medium: water, liquid, gas, oil, powder, steam, acid and alkali corrosive medium.

Design and manufacturing standards
Design and manufacture: GB / T12238-2008
Connection standard: JB / T 79.1-1994
Structure length: GB / T12221-2005
Pressure test: GB / T13927-2008

Pneumatic actuators
Double-acting: Ventilation on, ventilation off
Single-acting gas-opening type: ventilation open, air cut-off, gas source failure closed
Single-acting gas-closed type: ventilation closed, air cut-off open, gas source fault open
Optional accessories: Reversing solenoid valve, limit switch, air filter pressure reducing valve, electric positioner, hand wheel mechanism, position retaining valve
The electrical part can choose explosion-proof