PRODUCTS > Diaphragm valve > Fluorine lined pneumatic regulating diaphragm valve

                  Fluorine lined pneumatic regulating diaphragm valve

                  Product model:G641F46
                  Nominal diameter: DN15~DN300
                  Nominal pressure: 0.6MPa, 1.0MPa
                  Operating temperature: -30℃~+150℃
                  Main material: HT200, ZG230-450, ZG0Cr18Ni9

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                  [Essential information]
                        Working principle: using compressed air as power source, to accept the pressure signal of electric - gas valve positioner input or solenoid valve, the pressure in the membrane chamber on thrust compression spring assembly, and the push rod drives the valve rod displacement, change the flow area of the diaphragm and the valve seat, thrust reaction and signal pressure until the spring in the membrane phase equilibrium, so as to achieve the purpose of automatic adjustment of the process parameters.


                  [Valve structure drawing]


                  [Technical parameter ]

                  Nominal diameter DN(mm)1520253240506580100125150200250300
                  Rated flow coefficient(KV)815162860689160300500600120021003500
                  Equipped with actuator typeZM-2ZM-3ZM-4ZM-5ZM-6
                  Trip(mm)1016254060100
                  Nominal pressure(MPa)0.6MPa、1.0MPa
                  Mode of actionAir shut type(B)、Air opening(K)
                  Signal range(Kpa)200-100、40-200、20-60、60-100
                  Flow characteristicsApproximately fast opening
                  Maximum pressure is
                  allowed when closed
                  Signal
                  pressure
                  P2=01200.90.90.400.40.30.20.20.10.050.0150.010.060.030.01
                  1401.01.00.800.80.60.40.40.20.10.030.020.120.060.02
                  P1=P21200.450.450.200.20.150.10.10.050.020.070.050.030.150.06
                  1400.90.90.400.40.30.20.20.10.050.140.100.060.030.01


                  [Valve features]

                  1, Corrosion resistance: almost all capability of the medium (including concentrated nitric acid and aqua regia) of corrosion.

                  2, Good sealing performance: because the valve cover is no stuffing box, to ensure that no leakage.

                  3, Leakage volume is small: because the valve core and valve seat use soft seal, so the leakage is low.

                  4, Equipped with multi spring pneumatic film actuating mechanism, the output force is huge and the structure is compact.



                  [Adaptive condition]
                        Fluorine pneumatic diaphragm valve is widely used in chemical, petroleum, metallurgical, pharmaceutical, power and other industries in the acid, alkali and other strong corrosive media and toxic and volatile gases, liquids and media process control.


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