The MAR-1 series is a miniature pressure regulator available in relieving and non-relieving configurations, designed for precise pressure control in compact applications. It features a brass body with nitrile seals (FKM optional), a stainless steel stem and spring, and is adjusted via a knurled knob, screwdriver slot, or plastic knob. The regulator supports input pressures up to 300 psig, with air flow rated at 3 scfm at 50 psig and 5 scfm at 100 psig, and operates within a temperature range of 32 to 230°F. Mounting options include #10-32 female inlet and outlet, 1/8" NPT inlet and outlet, or manifold mounting with #15/32-32 threads and nuts and lockwashers included. Non-relieving variants are compatible with air, water, or oil. The part number MAR-1 refers to the series, as specific variants like MAR-1BPF-5 are distinct models within it.
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 pack- age 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 non-relieving 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
Temperature Range: 32 to 230°F
Mounting: #15/32-32 thread. Nuts and lock washers 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 adjust- ment versions also available.
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.
| Clippard | |
|---|---|
| Product Category | Industrial Valves |
| Product Number | MAR-1 |
| Product Name | Miniature Pressure Regulator |
| Valve Type | Relief (optional feature) |
| Primary Material | Brass / Bronze |
| Media | Air; Compressed Air |
| Valve Size | 0.19 inch (4.83 mm) |
