Set the security problems that should be paid attention to when the pneumatic valve

（ ） The safety of pressure vessel pneumatic valve best directly installed on the container body. Liquefied gas container on the safety of the pneumatic valve should be installed in the gas phase section, prevent the discharge of liquid material, have an accident.
　　（ ） Security pneumatic valve for drain combustible gases, such as directly into the atmosphere, it must lead to far away from open flame or combustible materials, and is well ventilated place, discharge pipe must be piecewise in grounding conductor to eliminate static electricity. If the flammable gas temperature is higher than its ignition point, should consider the back fire prevention measures or cooling the gas into the atmosphere.
　　（ ） Security pneumatic valve to discharge the flammable liquid, the discharge line should be connected to the accident storage tank, sewage tank or other containers; Used to discharge such as high oil and gas or flammable and combustible liquid, in case of air may be burning material immediately appropriate access closed reservoir system of empty tower or accident.
　　（ ) Indoor equipment ( Such as distillation tower, pneumatic valve, put the safety of the combustible gas compressor lip) Appropriate room items, derivation and m above the roof above.