Pneumatic flange type hard sealing butterfly valve

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Pneumatic flange type hard sealing butterfly valve

Product model: D643H/Y
Body material: nodular cast iron, 304, 316, WCB
Valve plate: 304, 316, 316L, 1.4529
Seat material: EPDM, PTFE, alloy
Connection: to clip type, flange type
Pressure level: PN10, PN16
Pneumatic actuator: three stage pneumatic actuator
Pneumatic accessories: solenoid valve, limit switch, filter and so on
shared:

[valve body]
Nominal diameter: DN40-DN1600
Body material: nodular cast iron, WCB, 304, 316
Connection: clamp type, flange type, lug type, clip type
Pressure levels: PN1.0, 1.6, 2.5, 4.0MPa
Structure: eccentric structure

[valve assembly]
Seat seal: EPDM: -30℃~120℃
NBR: -30℃~80℃
PTFE: -30℃~140℃
VITON: -30℃~150℃
Valve plate: 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.

[pneumatic actuators]
Double acting: three stage pneumatic actuators are: 0 degrees -45 degrees -90 degrees (order, please determine the middle value)
Single acting: when the gas source fails, the air supply failure is opened; 0 degrees -45 degrees -90 degrees (order, please determine the middle value)

[Standard parameter]

Design standardGB/T12238-2008
Structural lengthGB/T12221-2005
Connection standardJB/T 79.1-1994
Pressure testGB/T13927-2008


[Adaptive condition]
       Now widely used in petroleum, chemical industry, gas equipment, nuclear power equipment, water treatment, air conditioning, iron and steel metallurgy, industrial furnace, canned equipment, brewing equipment, drying equipment, vacuum equipment, surface treatment, bio pharmaceutical, food machinery, textile, papermaking and other industries, is the preferred product construction the construction of national defense science and technology.


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