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3210A Series Single-Stage Corrosion Resistant Regulator - Monel

USD $1,732.84

3210A Series Single-Stage Corrosion Resistant Regulator - Monel

USD $1,732.84
Part Number:    3210A Series

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Product Description

MATHESON made in the USA



Corrosive service regulators constructed of Monel for superior corrosion resistance.


• Pressure regulation of acid forming halogen gases, such as hydrogen chloride, chlorine, hydrogen fluoride, hydrogen bromide, and silicon tetrafluoride
• Dispensing of corrosive calibration gases
• Research and development applications where a corrosion resistant regulator is required for either corrosive ambient conditions or corrosive gas service
• Applications requiring extended regulator lifespan in severe conditions

MATHESON strongly recommends the use of a cross-purge with any regulator put into highly corrosive or toxic gas service. You can easily add a cross-purge to this model regulator by selecting "Yes" for the Cross Purge option above.

Design Features

• Monel construction for excellent corrosion resistance
• Kel-F seat material for use with chlorinated compounds
• 2-1/2” Monel gauges
• Equipped with Monel needle valve on outlet
• Porous metal filter protects seat from contamination
• 1/4” NPTM outlet connection
• 1/4” compression tube outlet connection available as an option


Materials of Construction

• Gauges: Monel
• Body: Monel
• Bonnet: Chrome-plated brass
• Diaphragm: Monel
• Valve Stem: Monel
• Valve Spring: Monel
• Seat: Kel-F
• Seals: Kel-F 


• Maximum Inlet Pressure: 3000 psig (20,700 kPa)
          Maximum Flow Rate (at 2000 psig, N2):
          Model 3215A, 3217A, and 3219A: 1500 SCFH (700 SLPM)
          Model 3216A, 3218A, 3220A: 600 SCFH (280 SLPM)
• Flow Capacity (Cv): 0.195
• Operating Temperature: -20°F to 150°F (7°C to 66°C)
• Porting (Regulator Body): 1/4” NPT Female
• Porting Configuration: 2 High, 2 Low

Cross Purge Option

• Eliminates the escape of hazardous gases when changing cylinders
• Reduces danger of contamination from atmospheric moisture and oxygen
• Minimizes the amount of gas lost during cylinder changes
• Monel and Aluminum-Silicon-Bronze construction


Model 4775 Monel Cross Purge Assembly



Typical assembly of regulator and cross purge assembly
(stainless steel models shown here for illustration purposes)



Instructions, General Regulator

3D Model


Warranty Information