Application

The BR-1780 Series Regulators are designed for final line pressure regulation on medical oxygen systems. They are equally suitable for a variety of gases in medical or industrial applications. The BR-1780 Series Regulators have a balanced seat, are constructed with oxygen compatible materials, and offer a tamper resistant adjustment screw cap. Flow performance is impressive as well offering up to 30,000 SCFH for the 3/4” and 1” model and up to 20,000 SCFH for the 1/2” model.

Features

• Maintains a steady downstream pressure across a range of inlet pressure commonly provided by a cryogenic bulk tank.
• Large seat and diaphragm areas provide high capacity with sensitive control of delivery pressure with low falloff.
• Two ¼” FNPT delivery pressure gauge ports are located (plugged) on each side of the valve.
• Two bonnet drain/vent holes to allow for different mounting orientation.
• Bonnet cap covering adjusting screw for tamper protection.
• Maximum inlet pressure is 435 psig.
• Available in four delivery pressure ranges.
• Temperature range: -40° F to +165° F. (-40ºC to +74ºC)
• Cleaned per CGA G-4.1 for oxygen service.
• 100% Factory Tested

Materials

Body ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Forged Brass
Bonnet ,,,,,,,,,,,,,,,,,,,,,,,,,,,,Cast bronze for BR-1786/1788
..............................................Forged brass for BR-1784
Diaphragm ...................................Nitrile with PTFE liner
Springs, fasteners, and adjusting screw ...Stainless Steel
Other valve parts .................................................Brass
Seat Disc & O-Rings ...........................Viton is standard


For Carbon Dioxide and Nitrous Oxide Service: Specify EPDM material for seat disc and 0-Rings, add “E” to end of part number.

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