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Model 55 Miniature Precision Regulator

Brand: Fairchild Industrial Products

The Rotork Fairchild Model 55 is a compact precision polymer pressure regulator for high performance applications where space or weight may be limited or material compatibility concerns dictate use of a polymer construction regulator.

Stability of regulated pressure is maintained under varying flow conditions through the use of an aspirator tube which adjusts the supply valve in accordance with the flow velocity.

The Model 55 pneumatic regulator features control sensitivity of 5" water column to deliver consistent and reliable precision accuracy to maintain your desired set point regardless of supply pressure changes or conditions.

The Fairchild Model 50 pressure regulator will handle a 150 psi, 10 BAR maximum supply pressure and offers four (4) set point pressure ranges from 0-10 psi, 0-0.7 BAR, 0-70 kPa up to 2-100 psi, 0.1-7 BAR, 15-700 kPa.
Features
  • Compact size
  • Lightweight unit
  • Polymer construction
  • Separate control chamber isolates the Diaphragm from the main flow
  • Non-rising adjustment knob

1 - 12 of 128 Part Numbers
55120NNKNGB
55120NNKNGB
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Non-Relieving
  • Gauge - With Pressure Gauge
  • Mounting - With Bracket
55120NNKNGN
55120NNKNGN
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Non-Relieving
  • Gauge - With Pressure Gauge
  • Mounting - Without Bracket
55120NNKNNB
55120NNKNNB
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Non-Relieving
  • Gauge - Without Gauge
  • Mounting - With Bracket
55120NNKNNN
55120NNKNNN
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Non-Relieving
  • Gauge - Without Gauge
  • Mounting - Without Bracket
55120NNKRGB
55120NNKRGB
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Relieving
  • Gauge - With Pressure Gauge
  • Mounting - With Bracket
55120NNKRGN
55120NNKRGN
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Relieving
  • Gauge - With Pressure Gauge
  • Mounting - Without Bracket
55120NNKRNB
55120NNKRNB
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Relieving
  • Gauge - Without Gauge
  • Mounting - With Bracket
55120NNKRNN
55120NNKRNN
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Knob Adjustment
  • Relief - Relieving
  • Gauge - Without Gauge
  • Mounting - Without Bracket
55120NNTNGB
55120NNTNGB
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Tamper Proof
  • Relief - Non-Relieving
  • Gauge - With Pressure Gauge
  • Mounting - With Bracket
55120NNTNGN
55120NNTNGN
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Tamper Proof
  • Relief - Non-Relieving
  • Gauge - With Pressure Gauge
  • Mounting - Without Bracket
55120NNTNNB
55120NNTNNB
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Tamper Proof
  • Relief - Non-Relieving
  • Gauge - Without Gauge
  • Mounting - With Bracket
55120NNTNNN
55120NNTNNN
  • Base Model - 5512
  • Port Size - Manifold Mount
  • Elastomers - Nitrile
  • Actuation Adjustment Means - Tamper Proof
  • Relief - Non-Relieving
  • Gauge - Without Gauge
  • Mounting - Without Bracket
1 - 12 of 128 Part Numbers

Specifications

Actuator Type

  • Knob Adjust
  • Tamper-Proof

Ambient Temperature Range

  • -40° to 65.5° C (-40° to 150° F)

Diaphragm Material

  • Polymer Reinforeced Nitrite

Elastomers

  • Nitrile

Enclosure, Body Material

  • Valox 508

Exhaust Capacity - Relieving Units Only

  • 2 scfm

Flow Capacity

  • 9 scfm

Maximum System Pressure

  • bar: 10.34
  • kPa: 1,034
  • psi: 150

Media

  • Compressed Air
  • Gas

NPT Connection

  • 1/8” NPT Female

Pressure Range

  • bar: 0 to 0.69
  • bar: 0.03 to 2.07
  • bar: 0.07 to 4
  • bar: 0.138 to 06.89
  • kPa: 0 to 68.9
  • kPa: 13.79 to 689.5
  • kPa: 3.45 to 206.8
  • kPa: 6.89 to 413.68
  • psi: 0 to 10
  • psi: 0.5 to 30
  • psi: 2 to 100
  • psig: 1 to 60

Relief

  • Non-Relieving
  • Relieving

Sensitivity

  • 1/4” WC (0.64 cm)

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

Vent

  • Straight
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