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Fisherbrand™ R31B Series High Purity Low Flow Gas Regulators

Diaphragm-Sensed Dual-Stage High Purity regulators designed for analytical applications where a consistent outlet pressure and flow are desired

Manufacturer: genstar technologies co  R31BMKDSKC58011D

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Catalog No. 10-575-221

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Description & Specifications


Inlet 540
No. of Ports 5
Max. Outlet Pressure 250psi
Connection Type 0.25 in. GENLOK
Ports M
Weight (English) 4.03 lb.
Bonnet Material Nickel-plated Brass
Gauge Pressure (English) 2 in.
Includes Diaphragm valve
Operating Temperature Range (English) -40 to 165°F
Operating Temperature Range (Metric) -40 to 74°C
Outboard Leakage 2 x 10-8 heat inlet pressure: 1500psi
No. of Stages Dual
Weight (Metric) 1.82kg
Inboard Leakage 2 x 10-8 He
Seat Material PCTFE
Seal Material Metal
Relief Valve No
Pressure Range (Inlet) 3000psi
Diaphragm Material 316L Stainless Steel
Pressure Range (Outlet) 30 in. Hg Vac-100psi
Product Type Gas regulator
Material Nickel-plated Brass
Knob Material ABS Plastic
Gauge Pressure (Metric) 5.08cm
Front Panel Thickness 0.25 in.
For Use With (Application) Cylinder, research laboratories, gas chromatography, process analyzers, petrochemical industry, power plant