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Bellofram’s Type 40 Air Pressure Regulator is a dependable adjustable air pressure regulator, created for instrumentation and general purpose use. Test data for the Type 40 shows outstanding performance characteristics in such areas as regulated pressure vs. flow, forward-to-reverse flow offset, supply pressure sensitivity, repeatability and stability, among others.
Its precision design and selection of quality construction materials throughout guarantee extensive, trouble-free operation, including diecast aluminum housings, finished with scratch- and weather-resistant vinyl paint. A rubberized, soft-seat valve stem offers positive shut-off and “forgives” dirt or other foreign matter. An aspirator maintains downstream pressure and compensates for droop when high flow occurs. The gauge port is convenient for gauge installation and can also be used as an additional full flow outlet. Even more, an integral 60-mesh 304 stainless steel screen prevents foreign particles from entering the output stream.
| Sensitivity | 1" Water Column (2.5 cm) |
| Flow Capacity @ 100 psig (6.9 BAR) Supply and 20 psig (1.4 BAR) outlet | 20 SCFM (566 LPM) |
| Effect of Supply Pressure Variation (25 psig/1.7 BAR) on Outlet Pressure | Less than 0.2 psig (0.01 BAR) |
| Exhaust Capacity 5 psig (0.35 BAR) above 20 PSIG set point | 0.1-0.45 SCFM Typical 2.8 - 12.7 LPM |
| Max Supply Pressure | 250 PSIG (17.2 BAR) |
Effect of Changes in Flow on Regulated Pressure (100 psig / 6.9 BAR Supply) | 2 PSIG over flow of 10 SCFM / 283 LPM (0-30 PSIG / 0-2.1 BAR range 1/4 NPT, 20 PSIG / 1.4 BAR set point) |
Output Pressure Ranges | 0-10 PSIG (0-0.7 BAR) 0-35 PSIG (0-2.4 BAR) 0-60 PSIG (0-4.1 BAR) 0-120 PSIG (0-8.3 BAR) |
| Temperature Range | 0-160 °F (-18 to 71 °C) |
| Total Air Consumption @ Maximum Output | 6 SCFH (2.8 LPM) |
| Port Size | 1/4 NPT, BSPT |
Materials of Construction | Body: Die cast aluminum with vinyl paint Adjusting Screw: Plated steel Trim: Plated steel, brass, acetal resin Diaphragm: Buna-N elastomer and polyester fabric Knob: Phenolic Plastic (option) Spring: Music wire |
| Tamper Resistant Cover | Optional |
| Mounting Options | Pipe, Panel or Bracket |
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