Fisher™ 67CFSR-226 67C Series Instrument Supply Regulators

The 67CFSR-226 is a stainless steel instrument supply regulator manufactured by Fisher. The following are its technical parameters:

1. **Type**: Stainless steel with filter and internal pressure relief.

2. **Spring case style**: 1/4 NPT.

3. **Adjusting screw**: Square head with closed cap.

4. **Outlet pressure range**: 0 to 150 psig (0 to 10.3 bar).

5. **Drain valve**: Stainless steel, for manual drain only.

6. **Fixed drain**: Yes.

7. **Smart drain internal check valve air setting**: Yes.

8. **Second outlet**: Plugged with pipe plug.

9. **Pressure relief performance**: Low capacity, only for slight seat leakage; if the inlet pressure may exceed the maximum pressure rating of the downstream equipment or exceed the maximum outlet pressure rating of the regulator, other overpressure protection must be provided.

10. **Approximate weight**: 4 pounds (1.8 kg).

11. **Filter Capacity**:

- **Free Area**: 12 times the pipe area.

- **Micron Rating**: Standard polyethylene filter is 5 micron; optional fiberglass filter is 5 micron, optional polyvinylidene fluoride (PVDF) filter is 40 micron, and optional stainless steel filter is 40 micron.

12. **Temperature Capability**:

- **Nitrile (NBR)**: -40 to 180°F (-40 to 82°C);

- **Fluorocarbon (FKM)**: 0 to 300°F (-18 to 149°C);

- **Silicone (VMQ) diaphragm and cryogenic bolts**: -60 to 180°F (-51 to 82°C);

- **Arctic/Cryogenic Construction**: -76 to 140°F (-60°C to 60°C).

Additionally, the maximum inlet pressure (body rating) for the 67C Series regulators to which the 67CFSR-226 belongs is 250 psig (17.2 bar) for all models except the 67CS and 67CSR types, which is 400 psig (27.6 bar); the maximum emergency outlet pressure is 50 psi (3.4 bar) above the outlet pressure setting.