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QF-6AOxygen Cylinder Valve

Brass Valve QF-6A for Oxygen Cylinder
  • QF-6A
  • 8481804090


-Mat: Brass;
-DN: 4mm; W. P: 15Mpa;
-Inlet Thread: PZ 27.8;
-Outlet thread: Female 5/8''G.

The simplest, and very ancient, valve is simply a freely hinged flap which drops to obstruct fluid (gas or liquid) flow in one direction, but is pushed open by flow in the opposite direction. This is called a check valve, as it prevents or "checks" the flow in one direction.
Valves have many uses, including controlling water for Irrigation, industrial uses for controlling processes, residential uses such as on / off & pressure control to dish and clothes washers & taps in the home. Even aerosols have a tiny valve built in. Valves are also used in the military & transport sectors.

NO.Type  No.                              Produce Namesuitable 
Outlet thread(mm)Jiont Thread
 to cylinder (mm)
of safety device
Valve type oxygen bottle valve
Oxygen, Nitrogen, Air
154G5/8GB8335 PZ27.821±1.5
2QF-2A1Brass Shaft Coupling type Cylinder
 valve for CO2
CO2157W22 x 1/14GB8335 PZ27.821±1.5
3QF-2A8Brass Shaft Coupling type Cylinder 
valve for CO2
CO2154W21.8 x 1/14GB8335 PZ27.821±1.5
4QF-2A17Brass Shaft Coupling type Cylinder 
valve for CO2
CO2154CGA320GB8335 PZ27.821±1.5
5QF-17Brass Flapper Coupling type Cylinder 
valve for CO2
6QF-16ABrass Flapper Coupling type Cylinder 
valve for CO2
CO2152.5W21.8 x 1/14M18 x 1.521±1.5
7QF-35Brass Flapper Coupling type Cylinder 
valve for CO2
8QF-35ABrass Flapper Coupling type Cylinder 
valve for CO2
CO2154W22 x 1/14UNF1.125-1221±1.5
9QF-35BBrass Flapper Coupling type Cylinder 
valve for CO2
CO2154W22 x 1/14UNT(1A)3/4-1621±1.5
10QF-35CBrass Flapper Coupling type Cylinder 
valve for CO2
11F-5Brass Flapper Coupling type Cylinder 
valve for CO2
CO2157Female Thread G5/8GB8335 PZ27.821±1.5
12F-2MBrass Flapper Coupling type Cylinder 
valve for CO2
CO2154W22 x 1/14JIS B 8246 V221±1.5
13F-2M1Brass Flapper Coupling type Cylinder 
valve for CO2
CO2154W22 x 1/14GB8335 PZ27.821±1.5
14F-2M2Brass Flapper Coupling type Cylinder
 valve for CO2
CO2154W22 x 1/14GB8335 PZ19.221±1.5
15F-2NBrass Flapper Coupling type Cylinder 
valve for CO2
CO2154W21.8 x 1/14JIS B 8246 V2 28

Oxygen Cylinder Valve QF-6A:

A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure.

*About Us:

We are a professional manufacturer and supplier of Gas Cylinders Regulators, Oxygen Flowmeters, Medical Oxygen Flow Regulators, Medical Oxygen Kits, Oxygen Intake Devices, Gas O2 Valves, Medical Pin Index Valves, Medical Gas O2 Supply System Products, Gas O2 Cylinder Carts/Trolleys, Gas O2 Outlets, Ceiling Medical Pendants, Medical Gas Oxygen Respiratory Products and etc.

*Advantages :
-1).Original Manuacturer: Being a professional manufacturer, we have professional equipments for our manufactureing products, including Punch Machines, CNC Machines, and etc.;
-2)Large Output capability: We have the capability to produce more than 50, 000PCS of Medical Oxygen Flowmeters each month;
-3)Quality Control: With ISO13485 Quality Management system; All products have been tested before out of factory;
-4)Cost Advantages: We have cost advantage because our professional and scale economy;
-5)Series: We have different series and models, for different standards in different countries;
-6)Small order can be acceptable: M. O. Q. =50PCS;
-7)Exporting experience: We have over 5 years' experience for exporting.

-a). Various types of seamless steel/aluminum gas cylinders,cylinder valves & flowmeter regulators can be optional;

-b).We have many advantages of satisfying our potential customers' MIXED needs of different sizes of HP steel gas(O2/Helium/Argon/CO2/N2) cylinders raning from 0.2L~68L @15Mpa/20Mpa & ISO3807-1/2 Dissolved  Acetylene Cylinders(2L~60L),as well as cylinder regulators & cylinder carts.


Anyway,should you have any intersts or some more info needed on our cylinder carts, medical/industrial gas cylinders & allied gas items(gas cylinder valves,gas cylinder regulators,medical hospital central oxygen system products),you are really welcome to enquire us anytime!





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