Model 3400 Lever Operated Pressure Regulator

Brand: Fairchild Industrial Products

The Rotork Fairchild Model 3400 Lever Operated pressure Regulator is designed to allow rapid changes in pressure settings at control stations and test panels.
 
This high quality unit, capable of handling high flows and exhausts combines positive control with good sensitivity.
 
The Model 3400 Pneumatic Lever Operated Regulator is the combination of a Model 1000 High Flow Pressure Regulator and a hand held operated lever mechanism with 120 degree maximum travel.
 
The Model 3400, offered in four (4) different pressure ranges, is recommended for use in systems requiring the execution of hand operated pressure control such as the control of a throttle in an engine or engine room.
 
The regulator is the logical choice for rapid, "hands on" control in a variety of applications, including construction machinery, industrial and oil rig equipment, and cylinder operation.
Features
  • Lever mechanism actuation
  • Regulator is sensitive to 1/2" Water Column
  • Balanced Supply Valve
  • Aspirator Tube
  • Soft Supply and Exhaust Seats
  • Flow of up to 50 SCFM with 100 psig Supply
  • Separate Control Chamber isolates the diaphragm from the main flow
  • Unit construction
  • Short Lever Stroke over full pressure range

Specifications

Pressure Range

  • 0.5-10 psig : 0.03-0.7 bar : 3-70 kPa
  • 0.5-30 psig : 0.03-2 bar : 3-200 kPa
  • 1-60 psig : 0.1-4 bar : 10-400 kPa
  • 2-150 psig : 0.1-10 bar : 15-1000 kPa

Pipe/Port Size

  • 1/4"
  • 3/8"

Pipe/Port Thread Type

  • NPT

Max. Supply Pressure

  • 250 psig : 17.0 bar : 1700 kPa

Effect of Supply Pressure Variation

  • Less than 0.1 psig : 0.007 bar : 0.7 kPa per 100 psig : 7.0 bar : 700 kPa change.

Flow Capacity

  • 50 scfm (85 m³/hr) @ 100 psig : 7.0 bar : 700 kPa supply; 20 psig : 1.5 bar : 150 kPa setpoint.

Exhaust Capacity

  • 8 scfm (13.6 m³/hr) where downstream pressure is 5 psig : 0.35 bar : 35 kPa above set pressure.

Sensitivity

  • 1/2” (1.27 cm) W.C.

Ambient Temperature Limits

  • -40° F to +200° F (-40° C to 93.3° C)

Body & Housing Material

  • Zinc

Diaphragm Material

  • Buna-N on Dacron

Trim Material

  • Plastic, Zinc-Plated Steel

Mounting Style

  • Panel Mount

Supply Pressure - Maximum

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

Pressure Range

  • bar: 0.035 to 0.7
  • bar: 0.035 to 2
  • bar: 0.07 to 4
  • bar: 0.15 to 10
  • kPa: 15 to 1,000
  • kPa: 3.5 to 200
  • kPa: 3.5 to 700
  • kPa: 7 to 400
  • psi: 0.5 to 30
  • psig: 0.5 to 10
  • psig: 1 to 60
  • psig: 2 to 150

Exhaust Capacity - Relieving Units Only

  • 8 scfm (13.6 m³/hour)

Supply Pressure Effect

  • Less than psig: 0.1 (bar: 0.007, kPa: 0.7) Per psig: 100 (bar: 7, kPa: 700) Change

Sensitivity

  • 1/2 inH₂O (1.27 cm)

Enclosure, Body Material

  • Zinc

Trim Material

  • Plastic
  • Zinc-Plated Steel

Media

  • Compressed Air
  • Gas

Diaphragm Material

  • Buna-N
  • Dacron

NPT Connection

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

Mounting

  • Panel Mount

Ambient Temperature Range

  • -40° to 93° C (-40° to 200° F)
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