Safety principle of the pneumatic valve and Settings

security pneumatic valve is to prevent pressure equipment and containers, easy cause pressure or internal pressure exceeds limit and burst safety device. Safety pneumatic valve is pressure vessels, boilers, pressure piping system using a wide range of pressure of a safety device, guarantee the safe operation of the pressure system.

when tank pressure exceeds design rules, safety pneumatic valve automatically opens, discharge gas lower in high pressure, prevents damage to the container or pipe. And when the pressure inside the container drop to normal operating pressure, which shut down automatically to avoid the container overpressure discharge gas, resulting in the waste and production disruptions.

security pneumatic valve is mainly composed of pneumatic valve seat, pneumatic disc ( Pneumatic valve core and the loading mechanism of three parts. Pneumatic seat there and pneumatic valve body as a whole, have a plenty of and pneumatic valve assembly together, it is connected with the device. Pneumatic disc are jointly and severally pneumatic valve stem, it closely on the pneumatic valve seat. Pneumatic disc loading mechanism is above, the size of the load can be adjusted. When the pressure inside the equipment in the range of certain work pressure, internal medium on the pneumatic disc load mechanism is less than the above force and the force on the pneumatic valve, the difference between the two between the pneumatic valve and pneumatic valve seat seal, press the pneumatic pneumatic valve seat valve, equipment of medium can't discharge. When the pressure inside the equipment in excess of the prescribed work pressure and achieve safe pneumatic valve opening pressure, internal media role in alarm valve is greater than the force loading mechanism exert force on it, then leave the pneumatic pneumatic valve seat valve, pneumatic safety valve opens, the equipment within the medium that is through the pneumatic valve seat, if the security of the pneumatic valve displacement is greater than the equipment safety discharge capacity, equipment internal pressure is gradually decline, and through the vent after a short period of time, pressure drop back to normal working pressure. The internal pressure acting on the pneumatic valve and load mechanism is less than the above force exerting on it, and press the pneumatic pneumatic valve seat valve, medium to stop discharging, maintain the normal working pressure to continue running. So, security pneumatic valve by pneumatic disc on the ebb and flow of medium force and loading force, to close or open to achieve the purpose of preventing equipment overpressure.

set security pneumatic valve should be paid attention to the following:

( Container have spirit, liquid two phase materials safety pneumatic valve should be installed in the gas phase.
　　
　　( Safety of pneumatic valve to discharge the flammable liquid, safe the export of pneumatic valve should be connected with accident storage tank. When the discharge material is high temperature fuel, the receiving vessel shall have the corresponding protective facilities.
　　
　　( General pneumatic valve can on-site safety, put an operator meters above should and should not be towards meters above the fire place, send out spark locations and the high temperature equipment. The safety of the indoor equipment, containers, hollow pneumatic valve shall be lead to roof, and higher meters above the roof. Safety principle of the pneumatic valve and set the

( When security pneumatic valve, pneumatic valve inlet have partition partition pneumatic valve should be in a normally open state, and I will try to seal, in order to avoid mistakes.