The Model 4800 Volume Booster is a rugged precision instrument with key features providing reliable, efficient and stable operation.
Features:
  • Fixed Deadband between the operation of the supply valve and exhaust valve for accurate and stable valve positioning.
  • Integral bypass needle valve to optimize response time and stability.
  • Soft seat supply and exhaust valves for leak free operation and prevent hunting with feed & bleed positioners
  • Pressure balanced supply valve maintains deadband specification.
  • Damped diaphragm control chamber protects valves from damaging oscillation.
  • Two accessory ports connected to the outlet chamber.
  • Tapped exhaust port for exhaust air or for incorporation of a silencer.
  • 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 4800A

Price:
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Availability:
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Min. Qty:
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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

Supply Pressure - Maximum

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

Supply Pressure Effect

  • psi: 0.10 (kPa: 0.7, bar: 00.7) for psi: 100 (kPa: 700, bar: 7) Change in Supply Pressure

Signal or Output Pressure - Maximum

  • psig: 150 (kPa: 1,000, bar: 10)

Ambient Temperature

  • -40° to 93.3° C (-40° to 200° F)

Exhaust Capacity - Relieving Units Only

  • 100 SCFM (170 m³/hr)

Ratio

  • 1:1

Ratio Accuracy

  • 0.5% of psi: 100 (kPa: 700, bar: 7) Output Span

Process Connection - Threaded

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

Flow Rate

  • 5.0 Cv
  • 9.0 Cv

Flow Capacity

  • 500 SCFM (850 m³/hr) at psig: 100 (kPa: 700, bar: 7)

Mounting

  • Bracket

Enclosure/Body Material

  • Aluminum

Diaphragm Material

  • Nitrile on Dacron

Trim Material

  • Stainless Steel
  • Zinc-Plated Steel

Elastomers

  • FluoroCarbon
  • Nitrile