ANTI-SEISMIC EXPANSION JOINT CI GATE VALVE

The company was  is a professional sales of Pipe Fittings and valves company, the products are: American standard pipe fittings, valves, steel tubes and so on.After six years of hard work and development, it has gained a certain scale and strength.Strive to become the most satisfied supplier to all customers is our work goal.Our company adheres to the business philosophy of customer first and service first.Absorb new ideas, strict quality control, all-round service tracking, adhere to make high-quality products.We take the quality as the life, the time as the prestige, the price as the competitive power the belief bases in the foreign trade profession.

A valve is a product rarely noticed by the average person, yet it plays an important role in the quality of our life. Each time you turn on a  water faucet, use your dishwasher, turn on a gas range or step on the  accelerator of your car, you operate a valve. Without modern valve  systems, there would be no fresh pure water or automatic heat in your  home. There would be no public utilities, and beyond wood and coal,  almost no energy of any kind. Plastics would be unheard of, as would  many inexpensive consumer products.

By definition, a valve is a device that controls the flow of a fluid.  Today’s valves can control not only the flow, but the rate, the volume,  the pressure or the direction of liquids, gases, slurries or dry  materials through a pipeline, chute or similar passageway. They can turn on and turn off, regulate, modulate or isolate. They can range in size  from a fraction of an inch to as large as 30 feet in diameter and can  vary in complexity from a simple brass valve available at the local  hardware store to a precision-designed, highly sophisticated coolant  system control valve, made of an exotic metal alloy, in a nuclear  reactor.

Valves can control flow of all types, from the thinnest gas to highly  corrosive chemicals, superheated steam, abrasive slurries, toxic gases  and radio active materials. They can handle temperatures from cryogenic  region to molten metal, and pressures from high vacuum to thousands of  pounds per square inch.

The valve is one of the most basic and indispensable components of our  modern technological society. It is essential to virtually all  manufacturing processes and every energy production and supply system.  Yet it is one of the oldest products known to man, with a history of  thousands of years.