For back pressure or economizer service
- Type FR: Large flows, max. 400 psi (28.12 kg/ cm2 )
- Type FR-6: Max. 600 psi (42.18 kg/cm2 )
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Construction
- 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
- Also available with BSP threads
- Type FR (HP): Stainless steel and special construction for hi-purity systems
- All parts are commercially cleaned for cryogenic service
- Temperature rating: +150°F to -320°F (339K to 78K)
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