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Form: MM-
4/A5SC Revised 07/13/16
CONSULT C.A. NORGREN CO.
PRESSURE REGULATOR
MINNICH P/N 011703-00000
Standard Units: Relieving
Maximum supply Pressure: 250 PSI (17 Bar)
Operating Temperature Range: 40
o
F to 120
o
F (4.4°C to 48.9°C)
WARNING
FOR COMPRESSED AIR SERVICE ONLY. NOT TO BE USED ON LIFE
SUPPORT SYSTEMS.
INSTALLATION
Install regulators so the airflow is in the direction of the arrow as indicated on
the head of unit. Regulators should be installed downstream from filters and
upstream from lubricators, but as close as possible to the pneumatic tools or
appliances being serviced. The regulator will accurately control secondary
pressure between 5 and 200 PSI (0.34 and 13.8 Bar), maximum primary
pressure is 250 PSI (17 Bar). The self-bleed feature permits use on dead-end
applications. WARNING! Units are die cast aluminum. Do not over torque
when installing regulator or gauge. Use of Teflon tape is not
recommended.
OPERATION ADJUSTMENTS
After the regulator is installed, back off pressure by adjusting T-handle
counter-clockwise before the air is turned on. Turn on air supply and adjust T-
handle clockwise until the pressure gauge shows desired pressure. To lock the
T-handle, tighten lock nut on adjustment screw.
MAINTENANCE
On detection of air leaks, pressure fluctuation, or “creep”, depressurize
system and remove bottom cap. Inspect valve seat for damage or wear. Inspect
seat in head casting for foreign material or damage. Clean with naptha or
kerosene and blow out with air. Replace any damaged parts. If leaks persist,
remove spring cage, inspect piston and piston seat for wear or foreign materials.
Replace any damaged parts.
Part Number Item Kit Description Contents
011703-00004 4, 5, 6 Valve Kit Valve Assembly, Valve Spring, O-Ring
011703-00003 3 Piston Kit Relieving Piston Assembly (STD)
011703-00002 2 Spring Kit
Spring, 0-125 PSI (0-8.6 Bar) Range
(STD)
011703-00001 1 Spring Cage Kit
T-Handle Adjusting Screw Assembly,
Spring Cage, Screws
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