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Argon Regulator with Dual Flow Meter: Two-Sided Custom Welder Cylinder Assemblies
Quick Answer: Silver Instruments supplies argon regulators with dual flow meters for two-sided custom welder cylinder assemblies. The dual flow meter gives two welders independent shielding gas flow from one argon cylinder or manifold. Standard models cover 0 to 25 L/min per side with inlet pressure up to 300 bar.
What Is a Two-Sided Custom Welder Cylinder Assembly
A two-sided custom welder cylinder assembly is a gas control setup with one inlet and two separate flow meter outlets. Each outlet has its own needle valve and flow tube. A metal fabrication shop can run two TIG torches from one argon source without adding a second regulator.
In practice, a stainless steel workshop in Vietnam used one argon cylinder for two weld booths. The first booth ran a root pass at 10 L/min. The second booth ran a cover pass at 14 L/min. The dual flow meter kept both flows steady during shift work.
Dual Flow Meter Argon Regulator Specifications
Silver Instruments model SAI-AR-DM2 covers most welding gas control jobs. The inlet pressure rating is 300 bar. The outlet pressure range is 0 to 8 bar. Each flow meter side has a range of 0 to 25 L/min. A high flow version is available for heavy wall pipe welding with 0 to 50 L/min per side.
The body is forged brass with nickel plating. The flow tubes are glass or polycarbonate depending on the gas mix. Seals are available in EPDM for pure argon and nitrile for argon carbon dioxide blends. Inlet connections include CGA 580, DIN 477 No. 6 and BS 341 No. 4. Outlet connections can be 1/4 inch BSP or 6 mm hose barb.
Why Independent Gas Flow Matters
A single flow meter regulator has one outlet. Two welders share the same setting. When one welder opens a torch, flow can drop at the other station. That causes porosity in aluminum and stainless welds. A dual flow meter avoids this problem because each side has its own needle valve and flow tube. One side can run at 8 L/min while the other runs at 18 L/min with no interaction.
We have seen this on customer sites many times. A pipe spool fabricator in Malaysia had two welders on one argon manifold. With a single flow meter, weld reject rates increased during shift changes. After switching to a two-sided assembly, each welder set his own flow and the reject rate dropped.
These argon regulator assemblies are used in oil and gas pipe welding, marine deck pipe repair, chemical plant tubing, food and beverage stainless pipe work and water treatment pipe joints. They also work for MIG welding with argon carbon dioxide mixed gas when ordered with the correct seals.
In the Middle East, a pressure vessel workshop in Saudi Arabia needed argon control for two purging lines at the same time. One line purged the pipe ID during root pass. The other supplied the torch shield gas. A custom two-sided assembly reduced setup time and gas waste.
How to Specify a Custom Welder Cylinder Assembly
Most engineers skip this part. They order a generic regulator and then change fittings on site. That causes leaks and lost argon. A better process is to send the full gas connection data before ordering.
Send us your cylinder connection standard (CGA, DIN, BS or AS), inlet pressure in bar, outlet pressure in bar, flow range per side in L/min, and the number of welding stations. Also tell us the gas type such as pure argon, argon helium or argon carbon dioxide. We will quote the correct seal material, flow tube type and outlet fitting.
For a price quote contact Silver Instruments. Tel: +86-25-68650347. WhatsApp: +86-25-52155837. WeChat: +86 15365082610.
FAQ: Argon Regulator with Dual Flow Meter
What does dual flow meter mean on an argon regulator? It means the regulator has two separate flow tubes and two needle valves. Each side controls shielding gas flow for one torch or one purging line.
Can this regulator handle argon CO2 mixes? Yes. Order the version with nitrile seals and a polycarbonate flow tube. Do not use EPDM seals with high CO2 content.
What cylinder connections do you support? We support CGA 580 for North American cylinders, DIN 477 No. 6 for many Asian and European cylinders, and BS 341 No. 4 for UK and Commonwealth cylinders. Custom adapters are available.
Do you offer replacement flow tubes or needle valves? Yes. We stock spare glass tubes, polycarbonate tubes, needle valves and inlet filters for the SAI-AR-DM2.
What is the delivery time for a custom two-sided cylinder assembly? Standard models ship in 7 to 10 days. Custom outlet fittings or non standard inlet adapters may need 15 to 20 days depending on the quantity.