The Fisher™ MR95 Series consists of robust, direct-operated pressure regulators specifically designed for demanding industrial environments. With internal or external pressure registration and a choice of metal or soft seats, the series provides accurate, stable control across pressure-reducing and differential-pressure applications. Built to API 614 standards and available in cryogenic and high-temperature constructions, the MR95 Series ensures long-term reliability even under extreme conditions.
| Parameter | Details |
|---|---|
| Available Types | MR95L, MR95H, MR95HP, MR95HT, MR95LD, MR95HD, MR95HDP |
| Body Sizes | 1/4 NPT to 2 in. / DN 15 to 50 |
| Outlet / Differential Range | 2–30 psig (MR95L/LD); 5–150 psig (MR95H/HD/HDP); 15–400 psig (MR95HP/HT) |
| Maximum Inlet Pressure | Up to 1000 psig / 68.9 bar (type & material dependent) |
| Temperature Range | –40°F to 650°F / –40°C to 343°C (material dependent) |
| Shutoff Classification | Class IV (metal/PTFE); Class VI or better (elastomer) |
| End Connections | NPT, socket weld, flanged CL150/CL300/CL600, PN 16/25/40 |
| Flow Coefficients (Cv) | 1.1 to 18.1 (wide-open relief sizing) |
Perfect for wash tanks, small heaters, fuel and oil lines, air supply systems, test fixtures, sterilizers, and any process requiring precise pressure control in liquid, gas, or steam services.
A: Refer to Table 3 in the manual—each spring is color-coded and matched to a specific outlet or differential pressure range.
A: Yes, but the spring-case vent must remain open and protected from weather and debris.
A: Periodically inspect and replace the diaphragm; retorque flange cap screws after initial use (see Table 9 for torque values).
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