Model 90 Pneumatic Relay

Fairchild Pneumatic Low Pressure Selector Relay, 90 Series

Features & Benefits

Features

  • Small, Rugged Design Suitable for Installation Where Space is Limited
  • Soft Seat Construction to Assure Positive Shutoff
  • Low Selection Differential to Allow Precise Control of Switching
  • Fast Response that is Suitable for Control in Critical Loops
  • Automatic Switching that Eliminates Manual Monitoring of Signal Pressure

Benefits

  • Designed for Dead End or Low Flow Service
  • Automatically Selects Lower of Two Signal Pressures
  • Available with NPT or BSPT Port Threads
  • Maximum Signal Pressure: 200 psig, 14.0 bar, 1400 kPa
  • Switching Differential (Minimum) : Less than 0.1 psig, 0.007 bar, 0.7 kPa
  • Differential between Signals (Maximum): 100 psig, 7.0 bar, 700 kPa
  • Ambient Temperature: -40°F to +200°F (-40°C to +93.3°C)
  • Port Size: 1/4"
  • Port Threads: NPT, BSPT (Tapered)
  • Options:
    • Fluorocarbon (Viton) Elastomers
  • Material of Construction:
    • Body: Aluminum Alloy
    • Trim: Brass
    • Elastomers: Dupont Fairprene-coated fabric
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
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90052
90052
Fairchild Low Pressure Selector Relay, Model 90
$315.00
  • Port Size

    1/4" NPT
  • Elastomers

    Dupont Fairprene-Coated Fabric
  • Port Thread

    NPT

Selected Configuration

Model #:

90052

Price:
$315.00 USD
Availability:
In Stock (25+)
Min. Qty:
1 Item

Configuration

reset configuration

Signal or Output Pressure - Maximum

  • bar: 14
  • kPa: 1,400
  • psig: 200

Differential Between Signals - Maximum

  • bar: 7
  • kPa: 700
  • psig: 100

Differential Between Signals - Minimum

  • >psig: 0.1 (bar: 0.007, kPa: 0.7)

Ambient Temperature

  • -40° to 93° C (-40° to 200° F)

Sensitivity

  • Switching Differential: 0.1 psi (<0.7 kPa); Maximum Differential Between Signals: 100 psid (700 kPa)

Process Connection - Threaded

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

Relief

  • Relieving

Vent

  • Straight

Mounting

  • None

Enclosure/Body Material

  • Aluminum Alloy

Trim Material

  • Brass

Elastomers

Available elastomers listed below, dupont fairprene-coated fabric on dacron is standard.
  • Dupont Fairprene-coated Fabric
  • FluoroCarbon (Viton)