The Model 4000ABP uses the force balance principle to open the Relief Valve and vent system pressure when the set point is exceeded.
Features:
  • Control sensitivity of 1/2 Inch Water Column allows use in precision applications
  • Large relief valve provides high exhaust flows
  • An aspirator tube compensates upstream pressure build up under flow conditions
  • A separate control chamber isolates the diaphragm from the main flow to eliminate hunting and buzzing
  • Unit construction lets you service the model 4000ABP without removing it from the line
  • Canadian Registration Number (CRN) certification for all territories and provinces
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
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Selected Configuration

Model #:

Model 4000ABP

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Configuration

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Agency Approvals

  • CRN

Environmental Protection

  • Acceptable for use in Zones 1 and 2 for gas atmosphere; Groups IIA and IIB and Zones 21 and 22 for dust atmospheres

Pressure Range

  • bar: 0.03 to 10
  • kPa: 3 to 1,000
  • psig: 0.5 to 150

Supply Pressure - Maximum

  • bar: 17
  • kPa: 1,700
  • psig: 250

Ambient Temperature

  • -40° to 93° C (-40° to 200° F)

Sensitivity

  • 1/2" WC (1.27 cm)

Process Connection - Threaded

  • 3/8" Female BSPP
  • 3/8" Female BSPT
  • 1/2" Female BSPP
  • 1/2" Female BSPT
  • 3/4" Female BSPP
  • 3/4" Female BSPT
  • 3/8" Female NPT
  • 1/2" Female NPT
  • 3/4" Female NPT

Actuator Type

  • Knob
  • Tamper-Proof

Flow Capacity

  • 150 SCFM (255 m³/hr) at psig: 90 (kPa: 600, bar: 6) Setpoint

Enclosure/Body Material

  • Aluminum

Diaphragm Material

  • Nitrile

Seat/Seal Material

  • Nitrile

Trim Material

  • Brass
  • Zinc-Plated Steel

Elastomers

  • FluoroCarbon
  • Nitrile