Model 4100 Low Pressure Pneumatic Regulator

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Details:

The Fairchild 4000A Pneumatic Precision Regulator is a no bleed design regulator that precisely controls a set pressure.

Features

  • Sensitivity of 0.05" WC for Precision Control in low pressure applications.
  • Large Relief Valve provides high exhaust flows.
  • Soft Valve seat minimises air consumption.
  • An Aspirator Tube compensates upstream pressure build up under flow conditions.

Operating Principles

When you adjust the Range Screw to a specific setpoint, the Range Spring exerts a downward force against the top of the Control Diaphragm. This downward force opens the Supply Valve. Output pressure flows through the Outlet Port and the Aspirator Tube to the Control Chamber where it creates an upward force on the bottom of the Control Diaphragm.

When the setpoint is reached, the force of the Range Spring that acts on the top of the Control Diaphragm balances with the force of output pressure that acts on the bottom of the Control Diaphragm and closes the Supply Valve.

When the output pressure increases above the setpoint, the Diaphragm Assembly moves upward to close the Supply Valve and open the Exhaust Valve and output pressure exhausts through the Vent on the side of the unit until it reaches the setpoint.

Catalogue PDF: application/pdf
Located in: Regulators

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