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Stainless Steel DBB Branch Outlet Monoflange Block and Bleed Valves
Piping and instrument valves in one body
Weight, space and cost saving over traditional designs
Two stem design: nonrotating lower stem reducing the total friction area between the packing and the lower stem
Stem threads above packing, protected from system media
Upper stem threads are cold rolled for high strength and smooth operation
Lower stem hardened needle for positive shut off
Safety back-seating needle seals in fully open position
Maximum working pressure: 6000 psig (413 bar)
Temperatures up to 450ºF (232ºC) with PTFE packing; up to 1112ºF (600ºC) with Graphite packing
Low operating torques
Every VAFINE valve tested with nitrogen for maximum working pressure
Piping and instrument valves in one body
Weight, space and cost saving over traditional designs
Two stem design: nonrotating lower stem reducing the total friction area between the packing and the lower stem
Stem threads above packing, protected from system media
Upper stem threads are cold rolled for high strength and smooth operation
Lower stem hardened needle for positive shut off
Safety back-seating needle seals in fully open position
Maximum working pressure: 6000 psig (413 bar)
Temperatures up to 450ºF (232ºC) with PTFE packing; up to 1112ºF (600ºC) with Graphite packing
Low operating torques
Every VAFINE valve tested with nitrogen for maximum working pressure