Fairchild Positive & Negative Bias Relay, Model 14
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14253U

Series: Model 14 Positive & Negative Bias Relay Brand: Fairchild Industrial Products - by Rotork
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Fairchild Positive & Negative Bias Relay, Model 14 Fairchild Positive & Negative Bias Relay, Model 14 Fairchild Positive & Negative Bias Relay, Model 14 Fairchild Positive & Negative Bias Relay, Model 14
  • Base Model - 1425
  • Port Size - 3/8" NPT
  • Port Thread - BSPT (Tapered)
  • Elastomers - Nitrile on Dacron
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Relieving
  • Exhaust Port - Straight

Specifications

Brand

Actuator Type

  • Knob 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

  • FluoroCarbon (Viton)
  • Nitrile on Dacron
  • Silicone

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • Acceptable for use in Zones 1 & 2 for Gas Atmosphere, Groups IIA & IIB & Zones 21 & 22 for Dust Atmospheres

Exhaust Capacity - Relieving Units Only

  • 5.5 scfm
  • 5.5 scfm (9.35 m³/hour)
  • 9.4 m³/hour

Flow Capacity

  • 40 scfm
  • 40 scfm (68 m³/hour) psig: 100 (bar: 7, kPa: 700) Supply, psig: 20 (bar: 1.5, kPa: 150) Set Point
  • 68 m³/hour

Mounting

  • None

NPT Connection

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

Pressure Range

  • bar: -1.2 to 0.7
  • kPa: -120 to 700
  • psig: -18 to 100

Relief

  • Non-Relieving
  • Relieving

Sensitivity

  • less than 1/2" WC (1.27 cm)

Signal or Output Pressure - Maximum

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

Supply Pressure - Maximum

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

Supply Pressure Effect

  • psig: 0.1 (bar: 0.007, kPa: 0.7) for a psig: 100 (bar: 7, kPa: 700) Change in Supply Pressure

Trim Material

  • Brass
  • Stainless Steel
  • Zinc-Plated Steel

Vent

  • Straight
  • Tapped Exhaust

Documentation

Data Sheets

Product Manuals

Catalogs

Certifications & Approvals

Installation Instructions

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