Type P50/Type P50 NACE Filter Regulator

Brand: BelGas

BelGAS Type P50 and Type P50 NACE Filter Regulators are reliable precision units designed for instrumentation and general purpose use in both standard (P50), and corrosive environments (P50 NACE).

These BelGAS regulators are generally superior in regulated pressure vs. flow, forward-to-reverse flow offset, supply pressure sensitivity, repeatability, and stability. Ruggedly designed and constructed, the regulators have housings of diecast aluminum.

The P50 Regulator is finished with vinyl paint (which resists scratching, weathering & other physical abuse), while the P50 NACE is finished with epoxy paint and includes a vent cap for added protection.

Both models are pressure and leak tested prior to shipment from the factory.

The full flow gauge port is convenient for gauge installation and can also be used as an additional full flow outlet.

The P50 regulators include a unique self-cleaning 40-micron nylon mesh filter (316 stainless steel in the P50 NACE) that can be easily removed.

The Type P50 NACE complies with NACE material requirement MR0175 for sulfide stress cracking resistant metallic material for oilfield equipment.

The design of these regulators is especially well suited to pilot-operated level, pressure, and flow controllers and instruments, as well as applications such as air chucks, air spray guns, air cylinders and actuators, and a wide range of industrial pneumatic systems and equipment.


Used in applications where it is desirable to relieve pressure downstream of the regulator, for some constant flow applications, and where the gas flowing through the regulator must not escape at the regulator.

Non-relieving regulators should not be used for low or no flow applications.

5 Micron Filter

Replaces the 40-micron filter supplied with the standard P50 for more complete air filtration. The standard P50 will have a tapped vent, vinyl paint, 40-micron filter and low bleed.

The standard P50N will have a tapped vent, epoxy paint, 40-micron filter and standard bleed.
  • Superior regulation characteristics
  • Self-relieving
  • Rugged, corrosion-resistant construction
  • Standard tapped vent
  • Soft relief seat on P50
  • Integral, 40 micron, self cleaning filter
  • Economical
  • Several mounting options

  • Pilot-Operated Level, Pressure and Flow Controllers and Instruments
  • Air Chucks, Air Spray Guns, Air Cylinders and Actuators
  • Industrial Pneumatic Systems and Equipment Monitoring

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