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0781-0354 - Victor SR312 High Flow CO2 Regulator with Heat Sink

Packaging: pack of 1
$1,393.14/EA $952.21/pack of 1 only $952.21/EASave 32%

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OVERVIEW

Reliable High-Flow CO2 Delivery for Heavy Fabrication

Every welder knows the frustration of a freezing regulator. When you are running high-deposition wires or pushing hard on a core wire application, the rapid expansion of CO2 can turn your regulator into a block of ice, cutting off your shielding gas and ruining your weld porosity. The Victor SR312 High Capacity CO2 Regulator is built to stop that before it starts. It isn't just a standard regulator with a different sticker; it features a heavy-duty machined aluminum body with built-in heat sink fins. These fins absorb ambient heat to keep the gas flowing smoothly, even when you are pushing up to 100 SCFH.

Built for the Industrial Shop
This regulator is a workhorse for MIG and Flux-Cored welding stations. The large 1.75-inch diaphragm gives you responsive flow control, ensuring that when you pull the trigger, your gas coverage is instant and stable. The stem-type seat mechanism is designed to handle the rigors of daily shop use, resisting wear and maintaining accuracy over time. With a clear 2-inch gauge, you can easily monitor your settings at a glance, keeping your focus on the arc, not on troubleshooting your gas supply.

Key Operational Benefits:

  • No More Freeze-Ups: The finned aluminum body acts as a passive heater, preventing the flow interruptions caused by dry ice formation in the seat assembly.
  • High Capacity Flow: Delivers up to 100 SCFH, perfect for large diameter flux-cored wires that demand heavy gas coverage to protect the molten pool.
  • Durable Construction: From the sintered inlet filter that blocks tank debris to the fabric-reinforced diaphragm, every part is built to last in a dirty, industrial environment.

If you are welding with straight CO2 and need a regulator that can keep up with high duty cycles without failing, the Victor SR312 is the professional choice. It connects directly to standard CGA-320 cylinders and provides the reliability you need to keep your production line moving.

Additional Information
Brand:Victor
Cga Fitting:CGA 320
Item:Flow Regulator
Used On Which Gas:CO2
Max Inlet:1500 PSI
Max Outlet:100 SCFH
Diameter:2
Packaging Description:1-per-ea
Gas Type:Carbon Dioxide (CO2)
Connection Type (CGA):CGA-320
Flow Range:0 - 100 SCFH
Inlet Pressure:Max 1500 PSIG
Gauge Type:2" Brass Gauge
Body Material:Machined Aluminum
Connection Sizes:Inlet: CGA-320, Outlet: 5/8" - 18 UNF (RH Female)
Pressure Relief Type:Self-reseating relief valve
Applications:Core Wire, High Flow CO2
Country Of Manufacture:Mexico
Used On Which Gas?:CO2

INCLUDED

  • Victor SR312 High Capacity CO2 Flowmeter Regulator
  • Instruction Manual

APPLICATIONS

  • Core Wire Welding
  • High Deposition MIG/MAG Welding
  • Industrial CO2 Shielding Gas Delivery
  • Heavy Fabrication Shops
  • Automated Welding Cells

FAQ

The Victor SR312 is designed to deliver a flow rate of 0 to 100 SCFH (Standard Cubic Feet per Hour), making it suitable for high-demand applications.

Yes, the SR312 features a machined aluminum body with integrated heat sink fins. This design helps dissipate cold and absorb ambient heat to prevent freeze-up during high flow rates.

The regulator is equipped with a CGA-320 inlet connection, which is the standard for Carbon Dioxide cylinders.

No, this regulator is specifically designed and fitted for Carbon Dioxide (CO2) with a CGA-320 connection. Argon and mixed gas cylinders typically use CGA-580 connections.

The maximum inlet pressure for the SR312 regulator is 1500 PSIG.

Yes, the SR312 is specifically marketed and designed for core wire applications where high flow rates and resistance to freezing are critical.

The outlet connection is a 5/8" - 18 UNF (Right Hand Female), which is a standard fitting for inert gas hoses.

Yes, it includes a self-reseating relief valve for safety, though it is not designed to protect downstream equipment from over-pressurization.

CATALOGUE & SPEC SHEETS

Spec Sheet