PRODUCTS > Butterfly valve > Pneumatic flange type soft sealing butterfly valve

                  Pneumatic flange type soft sealing butterfly valve



                  Product model: D641X
                  Nominal diameter: DN40-DN1000
                  Pressure level: PN1.0MPa, PN1.6MPa
                  Body material: ductile iron, cast steel, 304, 316
                  Valve plate material: ductile iron, nickel plated, nylon plate, 304, 316, 316L, 1.4529, 2507
                  Seat material: EPDM, NBR
                  Connection: double flange, optional pair
                  Flange standards: GB, ANSI, JIS, DIN
                  Structure: midline structure
                  Pneumatic actuator: double acting, single acting, normally closed, single acting, normally open

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                  [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: ventilation, ventilation, gas failure to maintain the current position
                  Single action: ventilation, breathe air to open, closed source fault
                  Single acting air to close off gas and ventilation: open source, open fault
                  Optional accessories: reversing solenoid valve, limit switch, air filter pressure reducing valve, electrical positioner, hand wheel mechanism, retaining valve
                  Electrical parts can be selected explosion-proof

                  [valve structure]

                  [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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