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          產品詳情

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          ZZYVP nitrogen valve closure

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          所屬類別:Self-regulating valve

          Nitrogen seal device ZZYVP is mainly used for tank top gas pressure constant control, in order to protect the tank material is not safe nitrogen seal device nitriding and storage by ZZDQ quick release valve and ZZV valve is composed of two micro pressure. The quick release valve by the pressure controller and ZMQ-16K type single seat valve. The pressure in the tank rises to the set pressure relief valve opened quickly, quickly put in the tank, the excess pressure relief. Regulating valve to reduce the pressure in the tank pressure, open the valve, to the tank filled with nitrogen. The regulator must be used in pressure 0.1Mpa pressure micro pressure, the pressure is higher, you must install the ZZYP type pressure regulating valve of the pressure regulating valve pressure drop to below 0.1Mpa can use. Nominal pressure 0.1Mpa, pressure can be set according to the section, from 0.5Kpa to 66 Kpa, the temperature of the medium temperature ≤ 80 ℃.

          Characteristic
          1, nitrogen sealing device for (discharge) nitrogen pressure set is convenient, and can be carried out under the condition of continuous production;
          2, the nitrogen pressure set range, low to 0.5Kpa (50mm.w.c), up to Kpa, the ratio reached 132 times, the effective area of diaphragm pressure detection, set the spring stiffness is small, action extremely sensitive.
          3, adjust:
          (1) nitrogen pressure adjustment: in ZZV type micro pressure control valve pressure regulating range selected a set value such as 1Kpa (100mm.w.c), by adjusting the adjusting screw 2 to change the spring 3 pre compression (tension) to achieve;
          (2) the discharge of nitrogen pressure adjustment: in the part of the pressure controller ZZDQ the quick release valve in, by adjusting the seat 3, change the spring pre compression reached 4. Generally avoid nitrogen seal device frequent opening and closing the set value, the discharge of nitrogen from nitrogen pressure value, such as 2Kpa (200mm.w.c);
          (3) the breathing valve high value adjustment: in the two set value after adjustment, in order to avoid breathing valve frequent opening and closing, breathing valve set value should be greater than the pressure set value.

          Parts material

          Part name
          Part name

          The valve body

          ZG230-450 ZG1Cr18 Ni9Ti
          The valve stem, valve core, valve seat
          1Cr18 Ni9Ti
          Diaphragm

          Nitrile rubber reinforcing polyester fabric

          Spring

          60Si2Mn
          Bellows
          1Cr18 Ni9Ti

          The main technical parameters of the shape and size of the

          Nominal diameter DN

          20
          25
          32
          40
          50
          65
          80
          100
          A
          192
          232
          308
          H
          629
          631
          652
          666
          689
          797
          837
          1050
          L
          150
          160
          180
          200
          230
          290
          310
          350
          G(Kg)
          18
          19
          21
          23
          25
          37
          50
          59

          Flange size               unit:mm

          Nominal diameter DN
          20
          25
          32
          40
          50
          65
          80
          100
          D
          105
          115
          140
          150
          165
          185
          200
          220
          D1
          75
          85
          100
          110
          125
          145
          160
          180
          B
          16
          18
          20
          22
          n-ф
          4-14
          4-18
          8-18
          f1×D2
          2×56
          3×65
          3×76
          3×84
          3×99
          3×118
          3×132
          3×156

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