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Help CenterQF-2B Oxygen Gas Cylinder Valve
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QF-2B Gas Cylinder Valve
(1) Type: QF-2B
2)Working Pressure: 15MPA;
(3)DN4/ G5/8LH /GB8335 PZ27.8;
For Oxygen/Air/Nitrogen
Valve Introduction:
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.
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.
People in developed nations use valves in their daily lives, including plumbing valves, such as taps for tap water,
gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot
water systems, and poppet valves in car engines
In nature there are valves, for example oneway valves in veins controlling the blood circulation, & heart valves
controlling the flow of blood in the chambers of the heart and maintaining the correct pumping action.
Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven
by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn
activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or
More complex control systems using valves requiring automatic control based on an external input (i.e., regulating
flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its
input and set up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.
LLocated in Shanghai, SEFIC is a professional supplier of gas and gas equipment. Founded in the 90s, the company has already accumulated enough experience and became one of the best suppliers of all kinds of gas and gas equipment. Besides, it is one of the earliest in the country to gain the License of Pressure Vessel Type A2 and C2, ISO9001 and ISO14000 Certification, Private Hi-Tech Enterprise, Hi-Tech Enterprise, and Special Equipment Manufacture Permission. We almost can supply all kinds of gas cylinders with TUV, TPED, CE and DOT certification.Located s, vaporizeia, Africa countries, such as Angola and South Africa.
Quality and Safety:
We have implemented a strict and complete quality control system, which ensures that each product can meet the quality requirement of customers. In addition, all of our products have been strictly inspected before shipment. Our products have attained the CE/DOTTPED certification.
HIGH QUALITY
SEFIC has implemented a strict and complete quality control system, which ensures that each gas cylinder can meet quality requirements of customers, and all cylinders have been strictly inspected before shipment.
LOWER PRICE
SEFIC always supply the lower price! We never stop trying to find new ways to reduce the gas cylinder cost, so that we can offer our customers a competitive price. Cooperate with SEFIC, Choose a Trustworthy Partner!
QUICK DELIVERY TIME
We are committed to work hard to ensure that every shipment of the gas cylinders are safe, punctual arrival, we have a lot of partners which always provide the most rapid means of transportation.
GOOD SERVICE
SEFIC has different series and models, for different standards in different countries, and we are committed to providing the best service. Cooperate with SEFIC, Choose a Trustworthy Partner!
ORIGINAL Manufacturer
Cooperation with SEFIC to achieve the sales relationship from the manufactory to the customer, can improve the production and delivery efficiency of the gas cylinder.
LARGE OUTPUT
SEFIC has professional equipments for gas cylinders. We have the capability to produce more than 50, 000pcs of Gas Cylinders per month.
EXPORTING Experience
SEFUC has implemented a strict and complete quality control system, which ensures that each gas cylinder can meet quality requirements of customers, and all cylinders have been strictly inspected before shipment.
OEM ACCEPTED
We accept OEM work, SEFIC can manufacture gas cylinder handle, gas cylinder cap, gas cylinder valve, gas cylinder Mark and gas cylinder color as your required.
Contact Us
Manager: Angela / Dylan
Email: angela_sefic@sefindustry. com / dylan_sefic@sefindustry. com
Skype: angela1991851 / dylan_sefic
M.P/Whatsapp: 0086-180 1766 2603 / 0086-180 1766 2616
ADD: NO.6598., Hutai Road, Baoshan district Shanghai, China 201908
Tel: 0086-21-6601 9676 Web:
oxygen gas cylinder
0.5L-50L
150bar-300bar
gas cylinder
2L-80L
150bar-300bar
gas cylinder
2L-80L
150bar-300bar
gas cylinder
175-495L
1.37-2.88Mpa
gas cylinder
600-1000L
150bar-300bar
gas cylinder
2L-80L
150bar-300bar
gas cylinder
2L-80L
150bar-300bar
gas cylinder
2L-80L
150bar-300bar
gas cylinder
2L-80L
150bar-300bar
Gas Cylinder
2L-80L
150bar-300bar
Send Inquiry to This Supplier
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