1, Long life cycle angle seat valve 2, Quality Ensure,100% Tested 3, Good after ... CONTACT: Ms Luna MOBILE: 0086-137 7794 4409 2/2-WAY PISTON-OPERATED seat valves FOR NEUTRAL AND AGGRESSIVE ... or welding residue, toavoid any damage to the seal.2. To be installed as required, preferably with actuator ... the seat (direction A) ensure long service life.2,Valves used for liquid media are waterhammer-free. ...