soft butterfly valve Standard technical parameters

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

soft butterfly valve In-valve components
Seat seal: EPDM: -30 ℃ ～ 120 ℃
NBR: -30 ℃ ～ 80 ℃
PTFE: -30 ℃ ～ 140 ℃
VITON: -30 ℃ ～ 150 ℃
soft butterfly valve plate material: Ductile iron nickel plated, nylon coating, aluminum bronze, 304, 316
316L, 1.4529, 2507

soft butterfly valve Stembutterfly valve material: stainless steel 410, 304

soft butterfly valve 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

soft butterfly valve Pneumatic actuators
Double-acting: Ventilation on, ventilation off
soft 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

soft butterfly valve Optional accessories: Reversing solenoid valve, limit switch, air filter pressure reducing valve, electric positioner, handwheel mechanism, position retaining valve

soft butterfly valve Electrical part can choose explosion-proof

soft butterfly valve Working principle
Sanitary valves can be driven by electric or pneumatic actuator, with signal to automatic control the valve open and close. The actuators rotate the discs freely within 90° to open or close or regulate the flow of the medium.

soft butterfly valve Leakage Class
Soft sealing butterfly valve: Zero leakage
Metal hard seal concentric butterfly valve: 1% leakage
Metal hard seal double/triple eccentric butterfly valve: Zero leakage