1, with the kind of safety valveValve play a security role in the system. When the pressure exceeds a predetermined valu......

1. fully welded ball valve test:    (1) Strength test: strength test using water as medium; welding sleeves on......

Usually integrally connected by a rotary valve actuator (0 ~ 90 ° part-turn) by mechanical, composed after installation......

     Electric butterfly valve is a circular disc for opening and closing member and with the rotation of ......