The Victor SR4F-320 Regulator (P/N: 0781-1401) is a high-performance single-stage gas pressure regulator designed for precision control of oxygen in welding, cutting, and industrial gas applications. Built with Victor’s proven reliability, it delivers stable outlet pressure, excellent flow capacity, and superior safety features. Its rugged brass body and stainless-steel diaphragm ensure long service life and consistent performance, even under demanding operating conditions.
| Cylinder Gas | Part Number | Model | Diameter | Case Material |
|---|---|---|---|---|
| Methane, Hydrogen | 0781-1424 | SR 4G-350 | 63.5 mm ( 2.5 in. ) | Brass |
| Methane, Hydrogen | 0781-1444 | SR 4J-350 | 63.5 mm ( 2.5 in. ) | Brass |
| Methane, Hydrogen | 0781-1404 | SR 4F-350 | 63.5 mm ( 2.5 in. ) | Brass |
| Oxygen | 0781-1425 | SR 4G-540 | 63.5 mm ( 2.5 in. ) | Brass |
| Oxygen | 0781-1445 | SR 4J-540 | 63.5 mm ( 2.5 in. ) | Brass |
| Oxygen | 0781-1405 | SR 4F-540 | 63.5 mm ( 2.5 in. ) | Brass |
| Inert Gas | 0781-1408 | SR 4F-580 | 63.5 mm ( 2.5 in. ) | Brass |
| Inert Gas | 0781-1430 | SR 4G-680 | 63.5 mm ( 2.5 in. ) | Brass |
| Inert Gas | 0781-1448 | SR 4J-580 | 63.5 mm ( 2.5 in. ) | Brass |
| Air | 0781-1442 | SR 4J-346 | 63.5 mm ( 2.5 in. ) | Brass |
| Air | 0781-1463 | SR 4K-347 | 63.5 mm ( 2.5 in. ) | Brass |
| Air | 0781-1422 | SR 4G-346 | 63.5 mm ( 2.5 in. ) | Brass |
| Air | 0781-1403 | SR 4F-347 | 63.5 mm ( 2.5 in. ) | Brass |
| CO2 | 0781-1401 | SR 4F-320 | 63.5 mm ( 2.5 in. ) | Brass |
Specifications
| Cylinder Gas | Model | Delivery Range | Maximum Delivery Pressure | Maximum Inlet Pressure | CGA Inlet | CGA Outlet |
|---|---|---|---|---|---|---|
| - | SR 4K-677 | 300-4500 psig | 7500 psig | 677 | 1/4" Swagelok | |
| - | SR 4J-680 | 200-3000 psig | 5500 psig | 680 | 1/4" Swagelok | |
| - | SR 4G-350 | 100-1500 psig | 3000 psig | 350 | 1/4" Swagelok | |
| Methane, Hydrogen | SR 4J-350 | 200-3000 psig | - | 1/4" | ||
| - | SR 4J-346 | 200-3000 psig | 3000 psig | 346 | 1/4" Swagelok | |
| Methane, Hydrogen | SR 4G-350 | 100-1500 psig | - | 1/4" | ||
| - | SR 4J-350 | 200-3000 psig | 3000 psig | 350 | 1/4" Swagelok | |
| - | SR 4F-540 | 30-750 psig | 3000 psig | 540 | 1/4" Swaglok® | |
| - | SR 4K-680 | 300-4500 psig | 5500 psig | 680 | 1/4" Swagelok | |
| - | SR 4F-347 | 50-750 psig | 5500 psig | 347 | 1/4" Swagelok® | |
| - | SR 4G-346 | 100-1500 psig | 3000 psig | 346 | 1/4" Swagelok | |
| Methane, Hydrogen | SR 4F-350 | 50-750 psig | - | 1/4" | ||
| - | SR 4G-540 | 100-1500 psig | 3000 psig | 540 | 1/4" Swaglok® | |
| - | SR 4F-320 | 50-750 psig | 3000 psig | 320 | CGA 032 5/8" – 18 UNF | |
| - | SR 4F-350 | 50-750 psig | 3000 psig | 350 | 1/4" Swagelok® | |
| - | SR 4K-347 | 300-4500 psig | 5500 psig | 347 | 1/4" Swagelok | |
| - | SR 4G-680 | 100-1500 psig | 5500 psig | 680 | 1/4" Swagelok | |
| - | SR 4F-680 | 50-750 psig | 5500 psig | 680 | 1/4" Swagelok | |
| - | SR 4J-540 | 200-3000 psig | 3000 psig | 540 | 1/4" Swaglok® | |
| - | SR 4F-580 | 50-750 psig | 3000 psig | 580 | 1/4" Swagelok® | |
| - | SR 4J-580 | 200-3000 psig | 3000 psig | 580 | 1/4" Swagelok | |
| - | SR 4J-677 | 200-3000 psig | 7500 psig | 677 | 1/4" Swagelok | |
| - | SR 4G-580 | 100-1500 psig | 3000 psig | 580 | 1/4" Swagelok | |
| Oxygen | SR 4J-540 | 200-3000 psig | - | 1/4" | ||
| Oxygen | SR 4G-540 | 100-1500 psig | - | 1/4" | ||
| Oxygen | SR 4F-540 | 50-750 psig | 5500-7500 psig | - | 1/4" | |
| Inert Gas | SR 4G-680 | 100-1500 psig | - | 1/4" | ||
| Inert Gas | SR 4F-580 | 50-750 psig | - | 1/4" | ||
| Inert Gas | SR 4J-580 | 200-3000 psig | - | 1/4" | ||
| Air | SR 4F-347 | 50-750 psig | - | 1/4" | ||
| Air | SR 4J-346 | 200-3000 psig | - | 1/4" | ||
| Air | SR 4K-347 | 300-4500 psig | - | 1/4" | ||
| Air | SR 4G-346 | 100-1500 psig | - | 1/4" | ||
| CO2 | SR 4F-320 | 50-750 psig | - | 1/4" |
