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Zhejiang Shengwei High Pressure Vessel Co., Ltd.

Oxygen Valve Qf-7b for O2 Cylinders, Oxygen Cylinder Valves, Oxygen Valves manufacturer / supplier in China, offering Oxygen Valve Qf-7b for O2 Cylinders, Medical Oxygen Tube Flow Regulator with Nasal Cannula, OEM O2 Gas Cylinders 40L (6m3) for Gas Plants and so on.

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Oxygen Valve Qf-7b for O2 Cylinders

FOB Price: Get Latest Price
Min. Order: 200 Pieces
Production Capacity: 30, 000PCS/Month
Transport Package: Ctns(25PCS/CTN)
Payment Terms: L/C, T/T, Paypal, Western Union

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Basic Info
  • Model NO.: ethanvuv(skype)
  • Mat.: Brass
  • Thread: Female
  • Specification: Skype(ethanvuv)
  • HS Code: 84819010
  • Item: Oxygen Valve Qf-7b for O2 Cylinders
  • Use: for Industrial Oxygen Cylinders
  • Trademark: CBMCARE
  • Origin: China
Product Description
Oxygen Valve QF-7B, Female Outlet Thread O2 Valve, Brass O2 Valve for Oxygen Gas Cylinders & Gas Oxygen Supply System.

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

Keywords: Medical Oxygen Valves, brass oxygen valves, brass gas valves, brass oxygen gas valves, gas cylinder valves, gas oxygen cylinder accessaries.

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.

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.

Gas cylinder valves are found in virtually every industrial process, including water & sewage processing, mining, power generation, processing of oil, gas & petroleum, food manufacturing, chemical & plastic manufacturing and many other fields.

NO.Type No.Product NameSuitable 
Outlet thread
Jiont thread to
 cylinder (mm)
of safety device ( Mpa)
1QF-2Brass oxygen cylinder valve(Flapper type)O2,N2,Air154G5/8GB8335 PZ27.821±1.5
2QF-2(Plate chrome)Brass oxygen cylinder valve(Plate chrome)(Flapper type)O2,N3,Air154G5/8GB8335 PZ27.821±1.5
3QF-2BBrass oxygen cylinder valve(Flapper type)O2,N4,Air154G5/8-LHGB8335 PZ27.821±1.5
4QF-2B1Brass oxygen cylinder valve(Flapper type)O2,N5,Air154W22 x 1/14G1/221±1.5
5QF-2B2Brass oxygen cylinder valve(Flapper type)O2,N6,Air154W22 x 1/14-LHG1/221±1.5
6QF-2B3Brass oxygen cylinder valve(Flapper type)O2,N7,Air154G5/83/4-14-NGT21±1.5
7QF-2B4Brass oxygen cylinder valve(Flapper type)O2,N8,Air154CGA300GB8335 PZ27.821±1.5
8QF-2CBrass oxygen cylinder valve(Flapper type)O2,N9,Air154G5/8GB8335 PZ27.8
9QF-2C2Brass oxygen cylinder valve(Flapper type)O2,N10,Air154G1/2GB8335 PZ27.8
10QF-2C3Brass oxygen cylinder valve(Flapper type)O2,N11,Air16.53.5G5/8GB8335 PZ27.8
11QF-2C6Brass oxygen cylinder valve(Flapper type)O2,N12,Air154G5/8G5/8 Union coupling
12QF-2C7Brass oxygen cylinder valve(Flapper type)O2,N13,Air154w21.8 x 1/14GB8335 PZ27.8
13QF-2DBrass oxygen cylinder valve(Needle type)O2,N14,Air154Female thread G5/8GB8335 PZ27.8
14QF-2EBrass oxygen cylinder valve(Flapper type)O2,N15,Air153W22 x 1/14JIS B 8246 V1 Ø2021±1.5
15QF-2E1Brass oxygen cylinder valve(Flapper type)O2,N16,Air153G5/8GB8335 PZ19.221±1.5
16QF-2E2Brass oxygen cylinder valve(Flapper type)O2,N17,Air153W22 x 1/14GB8335 PZ19.221±1.5
17QF-2FBrass oxygen cylinder valve(Plate chrome)(Flapper type)O2,N18,Air154G5/8GB8335 PZ27.821±1.5
18QF-2GBrass oxygen cylinder valve(Shaft coupling)O2,N19,Air154Femal threead G5/8GB8335 PZ27.821±1.5
19QF-2MBrass oxygen cylinder valve(Flapper type)O2,N20,Air154G1/2GB8335 PZ27.821±1.5
20QF-2PBrass oxygen cylinder valve(Flapper type)O2,N21,Air154W21.8 x 1/14GB8335 PZ27.821±1.5

*About Us:
We can manufacture and supply Seamless Steel Oxygen Cylinders, Portable Oxygen Cylinder Sets, Gas Oxygen Tanks, Oxygen Flowmeters, Medical Oxygen Flow Regulators, Oxygen Cylinder Regulators With Humidifiers, Medical Oxygen Inhalers, Click-style Oxygen Regulators, Wall-type Oxygen Regulators, Reuseable O2 Humidifiers, Disposable Oxygen Humidifiers, Medical Oxygen Cylinders, Aluminum Oxygen Cylinders, Medical Oxygen Kits, Oxygen Intake Devices, Gas O2 Valves, Medical Pin Index Valves, Medical Gas O2 Supply System Products, Gas O2 Cylinder Trolleys, Oxygen Carts, Gas O2 Outlets, Ceiling Medical Pendants, Medical Gas Oxygen Respiratory Products and etc.

Advantages We Have:
-1)Original Manuacturer: We have professional equipments like 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 our branch factories;
-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. =100PCS;
-7)Exporting experience: We have nearly 5 years' experience for exporting.

Anyway,if any interests or some more info needed on our gas cylinders,gas valves,gas regulators and allied products,just pls feel free to contact us!

Key Contact: Ethan Liu (Exp. Mgr)
Mob: +86-153 5606 5235
URL: ;
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