Low Pressure Oxygen Concentrator Parts Water Adjustable Brass Pressure Adjust Valve

Low Pressure Oxygen Concentrator Parts Water Adjustable Brass Pressure Adjust Valve

1. description

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 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 word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll.

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. Modern control valves may regulate pressure or flow downstream and operate on sophisticated automation systems.

Valves have many uses, including controlling water for irrigation, industrial uses for controlling processes, residential uses such as on/off and pressure control to dish and clothes washers and taps in the home. Even aerosols have a tiny valve built in. Valves are also used in the military and transport sectors.

2. components

Body

The valve's body is the outer casing of most or all of the valve that contains the internal parts or trim. The bonnet is the part of the encasing through which the stem (see below) passes and that forms a guide and seal for the stem. The bonnet typically screws into or is bolted to the valve body.

Valve bodies are usually metallic or plastic. Brass, bronze, gunmetal, cast iron, steel, alloy steels and stainless steels are very common.Seawater applications, like desalination plants, often use duplex valves, as well as super duplex valves, due to their corrosion resistant properties, particularly against warm seawater. Alloy 20 valves are typically used in sulphuric acid plants, whilst monel valves are used in hydrofluoric acid (HF Acid) plants. Hastelloy valves are often used in high temperature applications, such as nuclear plants, whilst inconel valves are often used in hydrogen applications. Plastic bodies are used for relatively low pressures and temperatures. PVC, PP, PVDF and glass-reinforced nylon are common plastics used for valve bodies

Bonnet

A bonnet acts as a cover on the valve body. It is commonly semi-permanently screwed into the valve body or bolted onto it. During manufacture of the valve, the internal parts are put into the body and then the bonnet is attached to hold everything together inside. To access internal parts of a valve, a user would take off the bonnet, usually for maintenance. Many valves do not have bonnets; for example, plug valves usually do not have bonnets. Many ball valves do not have bonnets since the valve body is put together in a different style, such as being screwed together at the middle of the valve body.

Ports

Ports are passages that allow fluid to pass through the valve. Ports are obstructed by the valve member or disc to control flow. Valves most commonly have 2 ports, but may have as many as 20. The valve is almost always connected at its ports to pipes or other components. Connection methods include threadings, compression fittings, glue, cement, flanges, or welding.

Handle or actuator

A handle is used to manually control a valve from outside the valve body. Automatically controlled valves often do not have handles, but some may have a handle (or something similar) anyway to manually override automatic control, such as a stop-check valve. An actuator is a mechanism or device to automatically or remotely control a valve from outside the body. Some valves have neither handle nor actuator because they automatically control themselves from inside; for example, check valves and relief valves may have neither.

Beijing Silk Road Enterprise Management Services Co.,LTD is a joint venture enterprise specializing in the production of cryogenic equipment, which is the subsidiary company of Tai Wan Lian Su group. Registered capital is 10,000,000 Yuan (about 1,600,000 USD ). Founded in 1996, Tailian has been doing research and development for various technologies, manufacturing of equipment, sales and service in the filed of cryogenics in both domestic and foreign markets. Owning advanced technology and producing facilities, we also have dozens of experienced specialists for cryogenic and air separating area for years. Tailian has been the supplier of dozens of world famous transnational companies, such as China nuclear power engineering Co., Ltd, China Aerospace Science and Technology Corporation, Xinjiang Guanghui Industry Investment Group Company Limited, Sinopec Group, China National Petroleum Corporation（CNPC）, Linde Group, France Air Liquid, China National Offshore Oil Corporation, Coca-Cola,Praxair，Hang Yang Group, Pepsi, Wahaha Group, Hafei Aviation Industry Co., Ltd, ENN Energy Holding Group, Qingdao Beer, Budweiser, Shell, CIBA and B.O.C. etc. Our annual producing capability of liquid pump is round 800-900 sets, and so far we have finished more than 10,000 sets cryogenic liquid pumps to the customers. In the past few years, our productions have been exported to several countries, such as Vietnam, Kazakhstan, Pakistan, Congo, Bangladesh, Egypt, Iraq, Cambodia, Angola, Philippines, India, Venezuela, Indonesia and Lao, etc.

Beijing Silk Road Enterprise Management Services Co.,LTD is specialized in producing cryogenic liquid pumps for LNG, LPG, liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquid ammonia and methane as well as cryogenic liquid vaporizer, oxygen compressor, carbon dioxide equipment and gas pressure regulating system. Beside that, we also undertake turnkey project of LNG/L-CNG vehicle fueling station, LNG station, LNG peaking-use evaporating station, LNG gas cylinder fueling station and undertake coal to gas project and all other industrial gas applications. Tailian also researches and develops, produces, sales and services for the equipment mentioned above.

Tailian has got the special equipment manufacturing license (A-grade pressure pipes) of People’s Republic of China and approval certificate of ISO9001：2008. Tailian is one of the members in 30 companies who got the title of ‘Golden Reputation’ in the First China Integrity Network Summit. And We are also the member “ Union of Golden Reputation”. With advanced technology, superior quality and value of after sale service, Tailian earns trust from lots of transnational gas companies both at home and abroad.

Sharp tools make good work. The administrator of Tailian realized that only good management, idea or good talent are not enough. Advanced facility must be adopted to ensure powerful manufacturing prowess and superior quality of our products. We purchased world advanced producing facilities(such as process center and CNC) and have experienced specialists, which can guarantee the good quality of products.

Our company persists in the principle of customer first, sincere service, products sale over the country, and export to Southeast Asia and the Middle East. Our products are mainly used in petroleum, chemical, nuclear power plants, iron and steel, electric power, military, aerospace and other industries.