Type 70 - T70 BP High Flow Back Pressure Regulator Valve
The Bellofram Precision Controls Type 70 BP is a high-flow back pressure regulator valve that functions as an adjustable, precision pneumatic relief regulator. It responds to upstream pressure changes and can relieve up to 50 SCFM, helping maintain a selected upstream pressure while protecting instrument and control-device supply lines from overpressure. With maximum pressure capability of 250 psig, the Type 70 BP is used for high-flow back-pressure relief, pneumatic clutch regulation, pressure-cylinder control, paper-machinery felt guides, and compressor-control systems.
Features:
- High Flow Capacity – Up to 50 SCFM (1400 LPM)
- Accurate Pressure Controls
- May Be Used in Place of a Standard Relief Valve
- Units Respond Quickly to Minute Upstream Pressure Changes
- Stack-up Construction May Be Disassembled and Service Without Removal from Air Line
- Precision High-Flow Back Pressure Relief
- Precise Control of Paper Machinery Felt Guides
- Pneumatic Clutch Regulation
- Pressure Cylinder Control
- Protection of Instrument and Control Device Supply Pressure Line
Size
3.0" X 3.0" X 6.0" (76 X 76 X 152 mm)
Port Sizes
1/4", 3/8", 1/2"
Sensitivity
1/8" (3.2 mm) Water Column
Pressure Ranges
N/A
Mounting Options
Pipe, panel, or bracket
Temperature Range
-40˚ to 200˚F (-40˚ to 93˚C)
Maximum Supply Pressure
250 psig (17.2 BAR)
Materials of Construction
Body: Diecast aluminum with
vinyl paint
Adjusting Screw: Plated steel
Trim: Plated steel, brass,
acetal resin
Diaphragm: Buna-N with
polyester fabric
Knob: Phenolic plastic
Spring: Music wire
vinyl paint
Adjusting Screw: Plated steel
Trim: Plated steel, brass,
acetal resin
Diaphragm: Buna-N with
polyester fabric
Knob: Phenolic plastic
Spring: Music wire
Exhaust Capacity @ 5 psig (0.4 BAR) above setpoint
N/A
Find Your Part Number
Not sure? Call for help. Phone: 304-387-1200
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