PRODUCTS > Butterfly valve > Pneumatic flange type multi layer metal hard sealing butterfly valve

                  Pneumatic flange type multi layer metal hard sealing butterfly valve

                  Product model:D643H/Y/F
                  Body material: nodular cast iron, 304, 316, UPVC
                  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


                  [valve assembly]

                  Seat Tightness:EPDM:-30℃~120℃

                  NBR :-30℃~80℃



                  Valve plate: ductile iron, nickel plated, nylon coated, aluminum bronze、304、316


                  Stem material: stainless steel 410, 304
                  Applicable medium: water, liquid, gas, oil, powder, steam, acid and alkali corrosive medium.

                  [Pneumatic actuator]

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

                  [Valve structure drawing]

                  [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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