Model 10 BP0 pages

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Model
10BP

Model 10BP Precision Pressure Regulator
Features
The Model 10BP is a high capacity regulator
that relieves excess pressure in a pneumatic
system.
The Model 10BP provides greater accuracy
than relief valves over a narrow pressure
range. The Model 10BP is an excellent choice
for a wide range of precision applications.
The Model 10BP has the following features:
• Control sensitivity of 1/8" water column
allows use in precision applications.
• A separate Control Chamber and Aspirator
Tube isolate the diaphragm from the main
flow to eliminate hunting and buzzing.
• Unit construction lets you service the Model
10BP without removing it from the line.
• Mounting Bracket is available.

Operating Principles
The Model 10BP Regulator uses the force
balance principle to open the Relief Valve
and vent system pressure when the set point
is exceeded.
Downstream pressure is transmitted through
the Aspirator Tube to the bottom of the
Diaphragm Assembly. When you adjust the
range screw for a specific set point, the
Positive Bias Spring compresses and exerts
a force on the top of the Diaphragm
Assembly. As long as the pressure acting on
the bottom of the Diaphragm Assembly
produces a force less than the spring force
acting on the top of the Diaphragm
Assembly, the Relief Valve remains closed.
When system pressure increases, the force
on the bottom of the Diaphragm Assembly
increases until it reaches the set point.
When system pressure increases beyond the
set point, the assembly moves upward, lifting
the Relief Valve from its seat and vents the
downstream air.
If downstream pressure decreases below the
set point, the assembly moves downward
closing the Relief Valve.

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