Cut off the pneumatic valve model establishment and performance

to cut off the pneumatic valve has simple structure, convenient operation, small size, light weight, good seal performance, large flow, the operation reliable, etc. Can be done using single-seat or pneumatic valve core sleeve to adapt to the different differential pressure to cut off the requirements. Can choose a big thrust of pneumatic piston actuator or electric actuator. Cut off the pneumatic ball valve is composed of actuators and pneumatic ball valve body, O type pneumatic ball valve with strong function, small volume, light and pleasant, form a complete set of reliable performance, simple, large flow capacity, etc. Pneumatic ball valve has a reliable sealing performance, in particular, as to cut off the use of the pipe inner medium, this series regulating pneumatic valve is widely used in petroleum, chemical, electric power, metallurgy, steel, paper making, medicine, food, textile, light industry and other industries. According to allow the pressure differential, medium characteristics and process piping requirements, can choose single-seat pneumatic valve, pneumatic valve sleeve cut cut, tee to cut off the pneumatic valve.

cut the application of the pneumatic valve
, connected with combustible gas leakage monitoring instrument, the instrument to detect combustible gas leakage, automatically shut down the main gas supply pneumatic valves, cut off the gas supply, in a timely manner to prevent malignant accidents;
and the limit of thermal equipment, temperature and pressure safety controller connection when the temperature of the equipment within the testing point pressure exceeds the limit of the set value, pneumatic valve automatically shut down the gas supply, stop fuel supply;
and the high-rise building fire alarm system in the middle of the connection, when building fire, cut off the gas inside the building, to prevent the occurrence of gas explosion;
, or factory in the city gas supply network ZCR gas emergency cut-off pneumatic valve is installed inside, can be in the central control room centralized control, emergency shut down the scene of the accident of pipeline gas supply remote control.

to cut off the pneumatic valve model establishment




Z


actuator


Q


structure


- 公称压力


气动阀体材质


公称通径




Z系列切断气动阀


H:气动活塞执行机构
J:气动薄膜执行机构
R:电动L执行机构
D:电动PSL执行机构


Q
切断气动阀


P:标准型单座切断气动阀
PF:软密封单座切断气动阀
PG:带散热型单座切断气动阀
PV:波纹管型单座切断气动阀
PD:低温型单座切断气动阀
M:标准型套筒切断气动阀
MF:软密封套筒切断气动阀
MG:带散热型套筒切断气动阀
MV:波纹管型套筒切断气动阀
MD:低温型套筒切断气动阀


PN=
CLLB= LB
JISK=K


C=WCB
LC=LCB
P=CF
PL=CF
R=CFM
RL=CFM
D=特殊材质


DN= DN
NPS〞=NPS〞




如：Z型气动薄膜单座调节气动阀，压力PN，气动阀体材料为WCB，公称通径DN，型号为：ZJHP- C DN





to cut off the performance of the pneumatic valve





flow characteristics

quick opening




to allow leakage


hard seal: level IV ( 。 % pneumatic valve rated capacity) Soft seal: VI level ( Bubble level)
leakage standard: GB/T




note: the performance index of each parameter with locator for the pure ptfe packing pneumatic valve adjustment.

to cut off the pneumatic valve selection parameter list




(nominal diameter DN)





































行程（ mm）

















thrust pneumatic piston actuators ( N)






























pneumatic diaphragm actuator
effective area of diaphragm Ae ( cm


咋/ B -


咋/ B -


咋/ B -


咋/ B -



















electric actuators thrust ( N)


L-


L-


L-


L-