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              Location:PRODUCTS >> Metallurgical valve >> Pneumatic blind valves
              Pneumatic blind valves
              Model: F643X
              Nominal diameter: DN300 ~ 1600mm
              Nominal pressure: PN0.05 ~ 0.25MPa
              Temperature: ≤450 ℃
              Main material: carbon steel, stainless steel, silicone rubber
              Design criteria: API 600, API6D, ASME B16.34 , 12234 GB / T
              Structural length: ASME B16.10, API6D, GB / T 12221
              Connection standard: ASME B16.5, ASME B16.47, GB / T 9113, JB / T 79, HG / T 20592
              Pressure test: API 598, GB / T 13927 , JB / T 9092
              Pressure - temperature rating: ASME B16.34, GB / T 12224

              First, the product uses

              This series of blind valve according to GB6222 "Industrial Enterprise Gas Safety Regulations" while digesting and absorbing the relevant domestic and foreign advanced technology, based on their own research and development of a new generation of products. Widely used in industrial and mining enterprises, environmental protection industries such as gas, toxic gas pipeline media, as a reliable cutting device. 
               

              Second, the structural characteristics  

              1, the valve by the valve body, fan valve plate, stainless steel bellows, drive, clamping devices and other components; 

              2, the valve body with three-point locking fan valve structure; 

              3, the sealing parts of stainless steel and rubber seals, reliable sealing performance, thereby increasing the service life of the seal, the seal is located on the valve plate, easy to replace the seal for maintenance;

              4, the actuator operation, work smoothly, opening and closing flexible, reliable action; 

              5, clamping action using screw nut clamping, self-locking is good; 

              6, Blind valve with a stainless steel bellows, with flexibility, long service life and so on. 

               

              Third, the installation and use rights

              1, the valve is installed, the bracket should be fixed valve base, the valve force in the action on the bracket; 

              2, first start the clamping device to the left and right valve body displacement so that the valve body and valve plate completely separated, and then open the valve plate drive to open or close, and then restart the clamping device, check the valve body is stuck on the valve body And whether the limit switch is activated when the drive is operating. 

               

              Fourth, product introduction

              The pneumatic blind valve is mainly composed of the left valve body, the right valve body, the valve stem, the gate, the sealing ring, the pneumatic push rod and other components, and the base and the support column form a rigid structural body. Sealing parts with stainless steel and rubber seals, good sealing performance, long service life, the seal set on the gate, easy to replace the seal when the seal, rubber seals with clamp in the gate. Pneumatic putter blind valve can be a single long-distance control, remote control can also be more than one network, under normal circumstances can also use the valve itself device manual operation. 

               

              Five, working principle

              1, the valve opens to the valve closed:

              Clamping motor action, driven screw for counterclockwise rotation, the valve body loose in place (indicator light display), the drive motor action, drive the counterclockwise rotation of the gate in place, the gate closed in place (indicator display), clamping motor Action, driven screw clockwise rotation, body clamping in place (indicator shows) to complete the valve from opening to closing the entire process. 
               

              2, the valve is closed to open: 

              Clamping motor action, driven screw for counterclockwise rotation, the valve body loose in place (indicator light display), drive motor action, drive the gate clockwise rotation, the gate open in place, (indicator light) To open the whole process.


              Sixth, the main connection size:

              DN D D1 b n-φd L
              300 440 395 22 12-φ22 500
              350 490 445 22 12-φ22 500
              400 540 495 22 16-φ22 600
              450 595 550 24 16-φ22 600
              500 645 600 24 16-φ22 600
              600 755 705 24 20-φ26 600
              700 860 810 26 24-φ26 800
              800 975 920 26 24-φ30 800
              900 1075 1020 28 24-φ30 800
              1000 1175 1120 30 28-φ30 800
              1100 1275 1220 30 28-φ30 800
              1200 1375 1320 30 32-φ30 800
              1300 1475 1420 32 32-φ30 800
              1400 1575 1520 32 36-φ30 850
              1500 1675 1620 32 36-φ30 850
              1600 1790 1730 32 40-φ30 850
              1800 1990 1930 32 44-φ30 1100
              2000 2190 2130 32 46-φ30 1100


              The previous:Manual blind valve
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