Gas Cylinder Valves Series
| TYPE | MEDIUM AVAILABLE | WP(Mpa) | INLET THREAD | OUTLET THREAD | SAFETY DEVICE(Mpa) | DN(mm) | STRUCTURAL STYLE |
| QF-2 | O2,N2 | 15 | GB8335 PZ27.8 | G5/8 | 21±1.5 | 4 | Valve type |
| QF-2B | O2,N2 | 15 | GB8335 PZ27.8 | G5/8-LH | 21±1.5 | 4 | Valve type |
| QF-2B1 | O2,N2 | 15 | G1/2 | W22×1/14 | 21±1.5 | 4 | Valve type |
| QF-2C | O2,N2 | 15 | GB8335 PZ27.8 | G5/8 | 21±1.5 | 4 | Valve type |
| QF-2D | O2,N2 | 15 | GB8335 PZ27.8 | Internal thread G5/8 | 21±1.5 | 4 | Valve type |
| QF-2E | O2,N2 | 15 | JIS B 8246 V1 φ20 | W22×1/14 | 4 | Valve type | |
| QF-2F | O2,N2 | 15 | GB8335 PZ27.8 | G5/8 | 21±1.5 | 4 | Valve type |
| QF-2G | O2,N2 | 15 | GB8335 PZ27.8 | G5/8 | 21±1.5 | 4 | Shaft type |
| QF-2M | O2,N2 | 15 | GB8335 PZ27.8 | G1/2 | 21±1.5 | 4 | Valve type |
| QF-2P | O2,N2 | 15 | GB8335 PZ27.8 | G5/8 | 21±1.5 | 4 | Valve type |
| QF-4 | O2,N2 | 15 | GB8335 PZ27.8 | G3/4 | 21±1.5 | 4 | Valve type |
| QF-5 | O2,N2 | 20 | GB8335 PZ27.8 | G5/8 | 28±2 | 4 | Valve type |
| QF-6 | O2,N2 | 15 | GB8335 PZ27.8 | Internal thread G5/8 | 4 | Valve type | |
| QF-7 | O2,N2 | 15 | GB8335 PZ27.8 | Internal thread G5/8 | 4 | Needle form | |
| QF-8 | O2,N2 | 15 | GB8335 PZ27.8 | G1/2 | 4 | Shaft type | |
| QF-12 | O2,N2 | 15 | GB8335 PZ19.2 | G5/8 | 21±1.5 | 4 | Valve type |
| QF-20 | O2,N2 | 15 | GB8335 PZ19.2 | G1/2 | 21±1.5 | 2 | Diaphragm type |
| QF-21 | O2,N2 | 15 | GB8335 PZ19.2 | W21.8×1/14 | 21±1.5 | 2 | Diaphragm type |
| QF-22 | O2,N2 | 15 | GB8335 PZ27.8 | W21.8×1/14 | 21±1.5 | 4 | Valve type |
| QF-25 | O2 | 15 | GB8335 PZ19.2 | φ7 Hose | 2 | Needle form | |
| QF-27 | O2,N2 | 15 | JIS B 8246 V1 | W22×1/14 | 21±1.5 | 3 | Valve type |
| F-1 | O2,N2 | 15 | GB8335 PZ27.8 | Internal thread W23×1/14 | 21±1.5 | 4 | Valve type |
| F-2 | O2,N2 | 15 | JIS B 8246 V2 | Internal thread W23×1/14 | 21±1.5 | 4 | Valve type |
| F-3 | O2,N2 | 15 | BS341 1×1/14 | Internal thread G5/8 | 21±1.5 | 4 | Shaft type |
| DF-4 | O2,N2 | 15 | GB8335 PZ27.8 | G5/8 | 21±1.5 | 4 | Shaft type |
GAS CYLINDER VALVES 3/4″ -14 NGT – ARGON, HELIUM, NITROGEN
This DSW gas valve is made from heavy-duty forged brass and is specifically designed for use with argon, helium, or nitrogen in steel inert gas cylinders.
Common applications include welding and other industrial uses.
PREMIUM CONSTRUCTION
Heavy-duty forged brass body for durability and high pressure
Precisely machined internal components meet the most stringent international valve performance standards
Metal-to-metal seal below bonnet threads prevents pressure in the threads at top of valve body
GAS CYLINDER VALVES
Pressure relief device
Automated assembly and testing processes ensure exceptional quality
100% helium leak tested
Pressure Relief Device (PRD) is a unitized plug design that provides excellent flow characteristics, ensures proper assembly and tamper resistance
Direct-drive stem design with optimized O-ring or double O-ring seal reduces friction and operates at exceptionally low torque levels
Tapped for dip tube as required
