Series 8140 Vacuum Relief Valve / Vacuum Valve is used when vacuum relief is the only requirement. Intake relief necessary under working conditions is achived by a spring or weight loaded pallet. The type 8145and 8147 may be side mounted on the tank body or piped in..
Features
Designed and tested according to API2000;
Vertical/Horizontal installation;
Size 2” through 12” for 8140,8145,while 3”to14”for8143,8147;
Available material option: aluminum, carbon steel, stainless steel and other material;
Modula construction;
FEP diaphragm can effective prevent seat and pallet from sticking, Select the seal structure according to the operation condition;
The inlet and outlet flange are in according with ANSI B 16.5 150Lb RF(It can be designed according to users’ requirement);
It can be specially designed with Flame Arrester, Inlet Pipe, Steam Jacket, Blowing Hole, Lining or Humidity Absorber.