Natural Gas & Propane Regulators

Product catalog summary

Overview: The document provides detailed specifications and features of various gas regulators (P32, P36, P37, P38) offered by Belgas, a division of Marsh Bellofram. These regulators are designed for applications involving natural gas and propane, with specific models catering to different flow and pressure requirements.

P32 Regulator: Ideal for lower flow applications, the P32 features superior regulation and stability. It includes a square head adjustment screw for easy calibration and offers options like a handwheel adjustment and output pressure gauge. It is recommended to use a relief valve as per NFPA 58 standards. Key features include a 60-mesh screen, UL listing, and a temperature range of -0 to 160˚F.

P36 Regulator: This precision preset regulator is suitable for tamper-resistant environments. It is ordered with specific pressure regulation and also requires a relief valve according to NFPA 58. It shares similar features with the P32, including a 60-mesh screen and UL listing, but also releases undesirable moisture.

P37 Regulator: Offering high flow capacity at a reduced price, the P37 is comparable to market suppliers with a flow rate of 110 SCFM. It features a balanced pintle design and is suitable for high volume applications. It operates within a temperature range of -40 to 200˚F and is UL listed.

P38 Regulator: Known for its exceptional flow capacity, the P38 uses a patented balanced pintle design to maintain steady outlet pressure despite inlet fluctuations. It is a non-relieving regulator with a flow rate of 27 Mbtu/hr and is suitable for high volume applications. It operates within a temperature range of -40 to 200˚F.

Applications: These regulators are used in pneumatic controllers, valve positioners, actuation, fuel gas, and compressed air systems.

Specifications: The document provides detailed specifications for each model, including sensitivity, maximum inlet pressure, port size, outlet ranges, adjustment methods, materials of construction, diaphragm material, and approximate weight.

Flow and Pressure Data: The document includes tables and graphs illustrating gas flow rates (SCFM) at various pressures (PSIG) for each regulator model, highlighting their performance under specific conditions.

Catalog excerpts

Natural Gas & Propane Regulators P32applications. Squareand excellent stability make the for easy in-fieldideal for Superior regulation P32 Regulator lower flow head adjustment screw allows calibration. The P32 is available with handwheel adjustment, output pressure gauge and/or mounting bracket as options. The use of a relief valve is recommended for this product in accordance with NFPA 58. • 60-mesh screen • UL listed (Standard P32) • NACE construction available Pneumatic Controllers Valve Positioners Actuation Fuel Gas Compressed Air • Harmful particles blocked • Non-Relieving • Temperature Range -0 to 160˚F P36required. Idealprecision preset regulator is ordered with the exactor where This reliable pressure regulation for areas requiring tamper resistant components incidental re-adjustment is a concern. The use of a relief valve is recommended for this product in accordance with NFPA 58. • • • • 60-mesh screen • Harmful particles blocked UL listed (Standard P36) • Release undesirable moisture NACE construction available • Non-Relieving Temperature Range -0 to 160˚F P37 TheAtP37 contains(16.5 Mbtu/hr),same P37 offers flowas the comparable to many of the characteristics P38, but at a reduced price. 1 SCFM 10 the rates current market suppliers. The use of a relief valve is recommended for this product in accordance with NFPA 58. • • • • • Balanced pintle design Bubble tight/non-relieving 16.5 Mbtu/hr. (1 scfm) 10 UL listed Bellofram Rolling Diaphragm • High flow capacity • Enclosed space use • High volume applications • Non-Relieving • Temperature Range -40 to 200˚F P38 The in outlet pressure due to inlet pressure fluctuations. The P38 eliminates P38 uses a patented balanced pintle design which unsteady changes is a spring opposed, diaphragm - operated, non-relieving regulator. The use of a relief valve is recommended for this product in accordance with NFPA 58. • • • • • • Balanced pintle design • Exceptional flow capacity Bubble tight/non-relieving • Enclosed space use 27 Mbtu/hr (260 scfm) • High volume applications UL listed • Minimal effect on output pressure from variation Bellofram Rolling Diaphragm of supply pressure Temperature Range -40 to 200˚F Sensitivity Max. Inlet Pressure Port Size Outlet Ranges Adjustment Screw Aluminum, Brass, Plated Steel, Buna-N Aluminum, Brass, Plated Steel, Buna-N Zinc, Aluminum, Plated Steel, Buna-N, Brass Zinc, Aluminum, Plated Steel, Buna-N, Brass Diaphragm Material Nitrile Elastomer with Polyester Fabric Nitrile Elastomer with Polyester Fabric Nitrile Elastomer with Polyester Fabric Nitrile Elastomer with Polyester Fabric Approximate Weight

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0 Regulator P32 regulators P36 regulators P37 regulators P38 regulators Body Size 1/4" P32 & P36 only 3/8" P38 only 1/2" P37 & P38 only 3/4" P37 & P38 only 1" P38 only Spring Range (see ‘NOTE’ for P36) 0-10 PSIG 0-0.7 BAR P32 & P37 only 0-30 PSIG 0-2 BAR P32, P37, P38 0-60 PSIG 0-4.1 BAR P32, P37, P38 0-120 PSIG 0-8.3 BAR P32 only 0-125 PSIG 0-8.6 BAR P37 & P38 only Special Construction None Epoxy Paint P37 & P38 only Tapped supply P38 only port for gauge Both options 1 & 2 P38 only PED Version P32, P37 & P38 only (for EU) Tapped vent P32, P37 & P38 only Options 1 & 5 P37 & P38 only Options 2...

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