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Welcome to the Spirit's blog ! The blog just talk about the valve ! You can be in their comments and suggestions to stay here, I would be grateful!

Friday, May 11, 2007

Valve's history

Do you know what is the valve appearance in the world? Now let me narrate the history valve!
Valves are used to control fluid flow, pressure and flow devices. controlled fluid can be liquid, gas, gas-liquid mixture or solid-liquid mixture.

Valve usually by the valve body, valve cover, valve seats, hoist pieces, drive, seals and fasteners and other components. valve control function is relying on the drive or driven hoist pieces of fluid movements, sliding, spin and swing or rotary movement to change the flow channel area size achievable.
Valve uses very broad, it related to people's daily life are closely related, such as water taps effective, LPG stoves are sold with the valve. Valve is machinery and equipment such as the internal combustion engine, the steam engine, the compressor, pump, pneumatic gear, hydraulic transmission vehicles, ships and aircraft were indispensable components.




BC two years ago, Chinese aqueduct on the use of the tube and muse valve and later in the use of irrigation water channels, In refining the use of bellows plate valve Salt mining in the use of the tube and check valve plate with brine extraction smelting technology and the development of hydraulic machinery.

In Europe the brass and Pb Cock Valve. With the use of boilers, Also from 1681 is the safety valve lever mallets. 1769 watts before the steam engine, Cock Valve and the valve is the main valve. The invention of the steam engine valves so that the machinery industry to the area.

In watts in addition to the use of the steam engine Cock Valve, the safety valve and check valve, but also the use of the butterfly, used to regulate traffic flow. With the steam flow and pressure increases, Cock Valve steam engine to control the use of steam and exhaust can no longer meet the needs of this came the slide valve.

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