butterfly valve

pneumatic aluminum bronze butterfly valve 

Technical parameters of pneumatic aluminum bronze butterfly valve
aluminum bronze butterfly valve body
Nominal diameter: DN50-DN600
Body material: Ductile iron, 304, 316
Connection method: lug to clip type
Pressure level: PN10, PN16
Structure: LT lug centerline structure

Marine butterfly valve internal components
Valve plate material: ductile iron, nylon coating, 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.

Standards for design and manufacture of seawater butterfly valves
Design and manufacture: GB / T12238-2008
Connection standard: JB / T 79.1-1994 ASME B16.10
Structure length: GB / T12221-2005 ASME B16.5
Pressure test: GB / T13927-2008

Pneumatic aluminum bronze butterfly valve actuator
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, handwheel mechanism, position retaining valve

Electrical part can choose explosion-proof

aluminum bronze 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.

aluminum bronze 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