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Zhejiang Shengwei High Pressure Vessel Co., Ltd.

Oxygen Cylinder Valve Qf-7c, Oxygen Cylinder Valves, Gas Valves Qf-7c manufacturer / supplier in China, offering Oxygen Cylinder Valve Qf-7c, 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 Cylinder Valve Qf-7c

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.: QF-7C
  • Mat.: Brass
  • Thread: Female
  • Origin: China
  • Item: Oxygen Cylinder Valve Qf-7c
  • Use: for Industrial Oxygen Cylinders
  • Trademark: CBMCARE
  • HS Code: 84819010
Product Description
Oxygen Cylinder Valve QF-7C, Female Outlet Thread O2 Valve QF-7C, Brass O2 Valve QF-7C for Oxygen Gas Cylinders & Gas Oxygen Supply System.

-1). Mat: Brass;
-2). DN: 4mm; W. P: 15Mpa;
-3). Safety device: 21± 1.5 Mpa
-4). Inlet Thread: PZ 27.8;
-Outlet thread: 5/8G(female).
-Feature: FEMALE OUTLET, with safety device.

Keywords: Oxygen Valves QF-7C, brass oxygen valves QF-7C, 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.

Should you have any intersts or some more info needed on our gas cylinder valves, just pls feel free to enquire us!

Key Contact: Ethan Liu (Exp. Mgr)
Mob: +86-153 5606 5235
NO. Type No. Product Name Suitable 
Outlet thread
Jiont thread to
 cylinder (mm)
of safety device ( Mpa)
1 QF-2 Brass oxygen cylinder valve(Flapper type) O2,N2,Air 15 4 G5/8 GB8335 PZ27.8 21±1.5
2 QF-2(Plate chrome) Brass oxygen cylinder valve(Plate chrome)(Flapper type) O2,N3,Air 15 4 G5/8 GB8335 PZ27.8 21±1.5
3 QF-2B Brass oxygen cylinder valve(Flapper type) O2,N4,Air 15 4 G5/8-LH GB8335 PZ27.8 21±1.5
4 QF-2B1 Brass oxygen cylinder valve(Flapper type) O2,N5,Air 15 4 W22 x 1/14 G1/2 21±1.5
5 QF-2B2 Brass oxygen cylinder valve(Flapper type) O2,N6,Air 15 4 W22 x 1/14-LH G1/2 21±1.5
6 QF-2B3 Brass oxygen cylinder valve(Flapper type) O2,N7,Air 15 4 G5/8 3/4-14-NGT 21±1.5
7 QF-2B4 Brass oxygen cylinder valve(Flapper type) O2,N8,Air 15 4 CGA300 GB8335 PZ27.8 21±1.5
8 QF-2C Brass oxygen cylinder valve(Flapper type) O2,N9,Air 15 4 G5/8 GB8335 PZ27.8  
9 QF-2C2 Brass oxygen cylinder valve(Flapper type) O2,N10,Air 15 4 G1/2 GB8335 PZ27.8  
10 QF-2C3 Brass oxygen cylinder valve(Flapper type) O2,N11,Air 16.5 3.5 G5/8 GB8335 PZ27.8  
11 QF-2C6 Brass oxygen cylinder valve(Flapper type) O2,N12,Air 15 4 G5/8 G5/8 Union coupling  
12 QF-2C7 Brass oxygen cylinder valve(Flapper type) O2,N13,Air 15 4 w21.8 x 1/14 GB8335 PZ27.8  
13 QF-2D Brass oxygen cylinder valve(Needle type) O2,N14,Air 15 4 Female thread G5/8 GB8335 PZ27.8  
14 QF-2E Brass oxygen cylinder valve(Flapper type) O2,N15,Air 15 3 W22 x 1/14 JIS B 8246 V1 Ø20 21±1.5
15 QF-2E1 Brass oxygen cylinder valve(Flapper type) O2,N16,Air 15 3 G5/8 GB8335 PZ19.2 21±1.5
16 QF-2E2 Brass oxygen cylinder valve(Flapper type) O2,N17,Air 15 3 W22 x 1/14 GB8335 PZ19.2 21±1.5
17 QF-2F Brass oxygen cylinder valve(Plate chrome)(Flapper type) O2,N18,Air 15 4 G5/8 GB8335 PZ27.8 21±1.5
18 QF-2G Brass oxygen cylinder valve(Shaft coupling) O2,N19,Air 15 4 Femal threead G5/8 GB8335 PZ27.8 21±1.5
19 QF-2M Brass oxygen cylinder valve(Flapper type) O2,N20,Air 15 4 G1/2 GB8335 PZ27.8 21±1.5
20 QF-2P Brass oxygen cylinder valve(Flapper type) O2,N21,Air 15 4 W21.8 x 1/14 GB8335 PZ27.8 21±1.5

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