Bossweld CO2 Dual Stage Regulator Side Entry
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The Bossweld CO2 Dual Stage Regulator Side Entry is a dual-stage regulator for the CO2 shielding gas used in MIG welding. The first stage delivers a constant pressure into the regulator and the second stage sets the working pressure, so delivery stays steadier as the cylinder empties. That can lower gas consumption and improve shielding. A built-in safety relief valve is fitted and the body has no soldered joints.
It suits standard Type 30 outlet CO2 cylinders, and the regulator carries a 3-year warranty.
Where this product is used
- CO2 shielding gas supply for MIG welding
- Workshop and production welding
- Fabrication and repair
Features
- Dual-stage CO2 regulator with side cylinder entry
- Suits standard Type 30 outlet CO2 cylinders
- Steady delivery pressure as the cylinder empties
- Built-in safety relief valve, 3-year warranty
Key specifications
| Specification | Detail |
|---|---|
| Brand | Bossweld |
| Gas | CO2 |
| Stages | Dual stage |
| Cylinder entry | Side |
| Cylinder connection | Type 30 outlet CO2 cylinders |
| Safety | Relief valve |
| Warranty | 3 years |
| Part number | 400209C |
Choosing the right option
CO2 cools as it expands, so a high-flow draw can freeze the regulator. A CO2 heater fitted between the cylinder and regulator, or on the regulator stem, is the usual answer for high flow rates. A beverage version of this regulator separately and is not the one for welding.
See also: Bossweld Inline CO2 Heater 240V, Bossweld CO2 Spigot Heater 240V, Bossweld Spigot and Nut to Suit Type 30, Bossweld Single Gas Hose 5mm.
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Bossweld CO2 Dual Stage Regulator Side Entry
SKU: A0149494 | Model: 400209C
Bossweld 400209C: dual-stage CO2 regulator. Suits: Type 30 outlet CO2 cylinders. Gas: CO2.

