Screwdriver Slot Adjustment

When Clippard introduced a miniature regulator in 1962, the MAR-1 became very popular as a simple, robust, and cost-effective regulator in a small package with exceptionally long life. As regulator applications continue to increase, Clippard is meeting the demand with a variety of new models, options and improvements. Regulators are offered in either relieving or nonrelieving versions. The relieving design maintains a constant pressure output even when downstream conditions change, while non-relieving regulators do not automatically compensate for changes in downstream flow or pressure. There is no vent to atmosphere, as in a relieving type regulator, and the output pressure can increase due to a downstream event. Non-relieving versions can accommodate compatible liquid applications.

Medium: Air, Water* or Oil* Input Pressure: 300 psig max. Air Flow: 3 scfm @ 50 psig; 5 scfm @ 100 psig Operating Temperature Range: 32 to 230°F Mounting: #15/32-32 thread. Nuts and lockwashers furnished Materials: Brass body, Nitrile seals (FKM optional “-V”), stainless steel stem and spring Adjustment: By means of a knob with micro-adjustment (40 pitch thread). Screwdriver slot and plastic adjustment versions also available.

  • Non-Relieving models only*

1C and 1CP Models: As plunger is depressed, pressure increases proportionally to the travel; when plunger is released the input is closed and the output pressure is exhausted to atmosphere. 7/32” plunger travel.

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Part No.
Product Description 1-1 of 1
MAR-1 Pressure Regulator, #10-32 Ports, Knurled Knob, 10-100 psig