Bellofram Type 50 Filter Regulators

Marsh Bellofram’s General Purpose Type 50 and Type 50 NACE Filter Regulators are reliable precision units designed for instrumentation and general purpose use in both standard environments (Type 50), and corrosive environments (Type 50 NACE). The Type 50 NACE complies with NACE material requirement #MR0175 for sulfide stress cracking resistant metallic material for oil field equipment.

Data Sheet

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  • Superior regulation characteristics
  • Rugged, corrosion-resistant construction
  • Excellent stability and repeatability
  • Self-relieving
  • Integral, 40 micron, self-cleaning filter
  • Low droop at high flow
  • Several mounting options
  • Meets ATEX II 2 G Dc T 6 (Non-electrical certification)


  • Oilfield Equipment (NACE approved version)
  • Chemical Processing Plants (NACE approved version)
  • Corrosive Industrial Environments (NACE approved version)
  • Air Chucks
  • Air Spray Guns
  • Air Cylinders and Actuators
  • Industrial Pneumatic Systems and Equipment
  • Pilot-operated Controllers and Instruments