M4100A0 pages
Model M4100 Low Pressure Pneumatic Regulator
Model
M4100
The Model 4100A 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 minimizes air consumption.
• An Aspirator Tube compensates
upstream pressure build up underflow ExhaustValve
conditions.
Range Screw
Range Spring
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 cre-
ates 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 bal-
ances with the force of output pres-
sure 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.
Inlet Port
Co-tro
Diaphram
Supply Valve
Aspirator
Tube
Outlet Port
[215.9]
S.5TJ 0
"K" OPTION-
KNOB
125.1]
AGE FORTS
T OPTION
TAMPER? ROOF
fa/SMiEX
#77 800-334-8422
^A#CTO#-#fl_D www.fairchildproducts.com
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