CASH VALVE FR, FR-6 BACK PRESSURE OR ECONOMIZER SERVICE
Threaded ends; 3-way, 2 side inlets-bottom outlet; bronze body, spring chamber and diaphragms;
brass body seat; stainless steel seat disc, seat ring and pressure spring; PTFE O-ring and
diaphragm gasket; stainless steel bolts; pressure-tight closing cap. All parts are commercially
cleaned for cryogenic service. Also available with BSP threads.
FR Series valves are available in various pressure control and temperature ranges and are
designated as follows:
• Type FR has a bronze body as standard, is suitable for pressure of 0 to 400 psig (0 to 27.6 barg)
and maximum temperatures 200°F to 600°F (93°C to 316°C)*.
• Type FR-6 incorporates a diaphragm ring mounted above the diaphragm to accomodate
higher back pressure ranges: 200 to 600 psig (13.8-41 barg); 200°F to 600°F (93°C to 316°C)*.
Note: Also available in stainless steel and special construction for hi-purity systems.
Contact your sales representative.
Temperature rating: +150°F to -320°F (339K to 78K)