*Has indicator for location of open or close of valve *eaeternal pilot prolong the service life *up to 500million more cycls

Has indicator for location of open or close of valve,eaternal pilot witch can prolong the service life, no leak for 500 million times, free maintence, has adjustive airproof cover between relif orifice and slide block.

 Material of body :stainless steel.

Control air source : neutral gas, air.

                       

 

Pneumatic control Angle seat valve (completely Stainless steel)