• Ratio: 1:1, 1:2, 1:3, 2:1, 3:1
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40° to 93.3°C (-40° to 200°F)
  • Port Size: 3/8", 1/2", 3/4"
  • Port Threads: NPT, BSPP (Parallel), BSPT (Tapered)
  • Options:
    • Tapped Exhaust
    • By-pass Valve
    • Feedback
  • Materials of Construction:
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass, Stainless Steel
    • Elastomers: Nitrile on Dacron, Viton
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
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4514AI
4514AI
$438.00
  • 1:1 (1)
  • 1/2" FNPT (4)
  • By-Pass Valve (I)

  • Ratio

    1:1

  • Port Size

    1/2" NPT

  • Port Thread

    NPT

  • Elastomers

    Nitrile on Dacron

  • Exhaust Port

    Straight

  • Increased Adjustability

    By-Pass Valve

  • Feedback Option

    None

  • Trim

    Zinc Plated Steel, Brass
4516AI
4516AI
$438.00
  • 1:1 (1)
  • 3/4" FNPT (6)
  • By-Pass Valve (I)

  • Ratio

    1:1

  • Port Size

    3/4" NPT

  • Port Thread

    NPT

  • Elastomers

    Nitrile on Dacron

  • Exhaust Port

    Straight

  • Increased Adjustability

    By-Pass Valve

  • Feedback Option

    None

  • Trim

    Zinc Plated Steel, Brass

Selected Configuration

Model #:

4514AI

Price:
$438.00 USD
Availability:
In Stock (5)
Min. Qty:
1 Item

Configuration

reset configuration

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

Set Point - Increasing

  • Inches WC: 1.0 to 3.0

Set Point - Decreasing

  • Inches WC: 1.0 to 3.0

Supply Pressure - Maximum

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

Supply Pressure Effect

  • bar: 0.007 to 0.021
  • kPa: 0.7 to 2.1
  • psig: 0.1 to 0.3

Output Pressure - Maximum

  • bar: 10
  • kPa: 1,000
  • psig: 150

Ambient Temperature

  • -40° to 93° C (-40° to 200° F)

Exhaust Capacity - Relieving Units Only

  • 40 SCFM
  • 40 SCGM (65.2 m³/Hour) where downstream Pressure is psig: 5 (bar: 0.35, kPa: 35) above psig: 20 (bar: 1.5, kPa: 150) Set Point.
  • 65.2m³/Hour

Ratio

  • 1:1
  • 1:2
  • 1:3
  • 2:1
  • 3:1

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

Relief

  • Relieving

Vent

Available vent/exhaust port types listed below, straight is standard.
  • Straight
  • Tapped Exhaust

Actuator Type

  • By-Pass Valve

Flow Capacity

  • 150 SCFM (255 m³/Hour)
  • 150 SCFM (255 m³/Hour) at psig: 100 (bar: 7, kPa: 700) Supply and psig: 20 (bar: 1.5, kPa: 150) Set Point
  • 255m³/Hour

Enclosure/Body Material

  • Aluminum

Trim Material

Available trim materials listed below, zinc plated steel & brass is standard.
  • 316 Stainless Steel
  • Brass
  • Zinc-Plated Steel

Elastomers

Available elastomers listed below, nitrile on dacron is standard.
  • FluoroCarbon (Viton)
  • Nitrile on Dacron

19549-1

19549-1

Fairchild Service Kit, Model 4500A, 1:1 Ratio

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19549-1E

19549-1E

Fairchild Service Kit, Model 4500A, 1:1 Ratio, Tapped Exhaust

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