QF Series Oxygen/Co2/Nitrogen/Argon Gas Cylinder Valves

Oxygen/Co2/Nitrogen/Argon Valves

Pressure Reducing Control Valves, Pressure Regulators
MEDIUM AVAILABLE: O2/Co2/Ar/Nitrogen
INLET THREAD: GB8335 PZ27.8
OUTLET THREAD: G5/8
SAFETY DEVICE(Mpa):21±1.5
WP(Mpa): 15
DN(mm):4

Gas Cylinder Valves Series

DSW provides high-pressure, high-temperature valves, which are designed and built for extreme longevity.
These are the industry’s most rugged, in-line repairable valves with the lowest life cycle cost.
They are widely used in the gas industry, like industrial gas, medical gas, high purity gas, specialty gas, mixture gas, standard gas, etc.

Oxygen/Co2/Nitrogen/Argon Cylinder Valves

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
gas cylinder valves
gas cylinder valves
gas cylinder valves
gas cylinder valves
gas cylinder valves
gas cylinder valves

GAS CYLINDER VALVES 3/4″ -14 NGT – ARGON, HELIUM, NITROGEN
This DSW  argon cylinder 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 the top of the 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