For Johnson Controls Applications
Category: Pneumatic Controls
Sub Category: Air Pressure Regulators
Air Pressure Reducing Valve
The Johnson R-131 Precision Air Pressure Reducing
Valve is designed for use where highly accurate
regulation of air pressure is required. When properly
adjusted with the system in operation and used within its rated capacity, this valve will maintain an output
pressure within ± 0.1 psi.
The valve is supplied in 1/4 in. pipe size with two
auxiliary 1/4 in. ports, either of which can be used for
connection of an output pressure gage. The direction
of flow is marked on the bottom of the valve. The
finish is moss green.
Output pressure is adjusted by turning a hand-wheel
on top of the valve. Clockwise rotation increases the
output pressure. A locking nut is provided which can
be tightened without altering the setting. Integral
filters prevent dirt from entering the valve.
To protect the system from possible damage, the
output pressure will not pass if the valve
malfunctions. Thus, the R-131 is failsafe.
The R-131 valve is designed for in-line mounting or
can be panel mounted using the optional mounting
bracket. Clean, dry air should be used to assure
Replaces Part Numbers: R-131-2, CARR-131-2