Strong R & D and production of Germany valve Blind plate valve including a pneumatic fan-shaped blind plate valve, manual fan-shaped blind plate valve, electric fan-shaped blind plate valve. How it works: a total of three drives of the blind plate valve, including two manual clamping or release the device, an electric device so that the gate opened or closed in the opening or closing plate, the first release of two manual device, and then start the electric device, in order to achieve the purpose of the gate on or off (pay particular attention to: two manual device does not release, may not open the electric device), the gate on or off is completed, and then two manual device folder tight pipe in order to work. 
 Two performance parameters: 

 Nominal pressure MPa, 0.25 0.15 0.10 0.05 
 Sealing test pressure MPa 0.275 0.165 0.11 0.055 
 Strength test pressure (MPa) 0.375 0.225 0.15 0.075 
 Driving source of compressed air 0.4-0.6MPa Hydraulic pressure 6.3MPa 3 phase 380V50HZ to 
 Applicable temperature ° C nitrile rubber silicone rubber Viton 
 -20-100-20-250 -20-300 
 Suitable medium gas, other combustible gases 
 Opening and closing time S ≤ 60 
 The body of the main components of materials, gate for carbon steel; stem of stainless steel; seals Silastic