NAI-LOK NR31 Two-stage Air Pressure Regulator
NAI-LOK NR31 Two-stage Air Pressure Regulator - Image 2
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NAI-LOK NR31 Two-stage Air Pressure Regulator - Image 5

The NAI-LOK SS316 two-stage gas regulator is specifically designed for industrial and laboratory gas systems requiring consistent pressure control and high-purity performance. Constructed from corrosion-resistant 316 stainless steel, this regulator ensures stable outlet pressure even as inlet pressure from the cylinder changes, making it ideal for analytical instrumentation, gas chromatography, and specialty gas applications.

Designed for use with standard CGA, BS, or DIN cylinder connections, this regulator supports a wide range of corrosive and non-corrosive gases. The two-stage design minimizes pressure droop, while its compact body allows for efficient installation in limited spaces.

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Description

NAI-LOK NR31 Two-Stage Gas Pressure Regulator

Key Features

     

  • Two-stage design ensures stable outlet pressure.

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  • Compatible with gases up to 6.0 purity.

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  • High inlet pressure up to 3500 psi (240 bar).

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  • Low internal leakage and long service life.

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  • Body material: 316 Stainless Steel / Chrome-plated Brass.

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  • Optional inlet connections: CGA, BS, DIN.

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  • Cleaned and packaged for high-purity service.

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  • Suitable for cylinder or panel mounting.

Specifications

Parameter Details
Product Name NR31 Two-Stage Regulator
Size 1/4″ NPT
Material Stainless Steel (316L)
Flow Coefficient (Cv) 0.05
Maximum Inlet Pressure 3500 PSI (241 bar)
Outlet Pressure Range 0-25 / 0-50 / 0-100 / 0-150 / 0-250 psi (optional)
Operating Temperature -40°C to 74°C (-40°F to 165°F)
Leakage Standard Internal: Bubble-tight
Standard Options CGA, inlet and outlet pressure gauges, safety relief valve

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