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70 (BP) High Flow Pressure Regulator
Brand: Marsh Bellofram Group of CompaniesThe Type 70 Back Pressure Regulator functions as a high flow, high precision pneumatic relief valve with an adjustable setpoint.
The Type 70BP can be used in place of a standard relief valve to improve pressure control while maintaining protection against over pressurization, as in supply pressure lines to instruments and other control devices.
Features- High flow Capacity - Up to 50 SCFM (1400 LPM)
- Responds quickly to minute changes in upstream pressure
- Bellofram’s Buna-N and polyester rolling diaphragms are designed to give millions of cycles
- Stack up construction can be disassembled and serviced without removal from air line
Specifications
Actuator Type
- Knob Adjust (Plastic)
- Screwdriver Adjust
- Tamper-Proof
Ambient Temperature Range
- -40° to 93° C (-40° to 200° F)
BSP Connection
- 1/2” BSPT Female
- 1/4” BSPT Female
- 3/8” BSPT Female
Elastomers
- Buna-N
Enclosure Finish
- Epoxy Coated
- Vinyl
Enclosure, Body Material
- Die Cast Aluminum
Exhaust Capacity - Relieving Units Only
- 4 scfm
Flow Capacity
- 40 scfm
- 50 scfm
- 80 scfm
Mounting
- Bracket
- Pipe or Panel
NPT Connection
- 1/2” NPT Female
- 1/4” NPT Female
- 3/8” NPT Female
Pressure Range
- bar: 0 to 13.7
- kPa: 0 to 1,379
- psig: 0 to 200
Relief
- Low Bleed
- Non-Relieving
Sensitivity
- 1/4” WC (0.64 cm)
Supply Pressure - Maximum
- bar: 17.2
- kPa: 1,723
- psig: 250
Supply Pressure Effect
- Less than psig: 0.025 (bar: 0.17, kPa: 0.17)
Trim Material
- Acetyl, Acetal Resin
- Brass
- Nitrile
- Plated Steel
Vent
- Straight
- Tapped Exhaust
