Valve's kinds

The rubber petals check valve is made from valve body valve lidam rubber petals. The steel plate Gteel barand reinforced nylon cloth we wssd to be substrates of the rubber petals, then cover Rubber to accompl it its swituh canbe wsed wearly one million times.

Ball valve are the three different types of rotary valves used in industrial plants. They are widely used in fluid-handling systems for flow control. These types of rotary valves are suitable for corrosive applications.

Block check valve

Check valve also known as one-way valve or check valve, and its role is to prevent the media pipeline back. Suction valve clearance also is the end of check valve type. Hoist pieces on media and mobile forces opened or closed to prevent the backflow valve media called check valve. Check valve is automatic valves, mainly for the one-way flow of media channels, the media is only allowed to flow in one direction. to prevent an accident from happening. By the check valve structure, it is divided into movements valve Kai Xuan butterfly valve and check valve three. Valve movements can be divided into two horizontal and vertical. Kai rotary valve is divided into single_lobe-, double - and multi-jaw flap-three. Butterfly valve for the seamless, over several check valve connecting thread form can be divided into connectivity, and welding flange connecting three. Check valve installation should pay attention to the following things top : 1, the pipeline will not withstand the weight of so check valve, large check valve should be independent of the support, from the purview of the Department of the pressure. 2, the installation of media attention in the direction of flow and the valve should be under the direction of the arrow unanimous vote. 3, vertical take-off and landing flap valve should be installed in the vertical pipe. 4, elevating the level of flap valve should be installed in horizontal pipeline.

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.

Outline of floating ball valve

Floating ball valves are suitable for use on various kinds of pipelines of Class 150 to Class 1500, PN16 to PN100, and JIS 10K to JIS 20K to turn on or off the pipeline medium, of which the operation types include manual, worm gear and pneumatic or electric actuators.

Metal sealed floating ball valve

Refer to that of floating ball valve for main dimensions and weights of metal to metal sealed floating ball valve. The flange dimensions and face to face dimensions are the same as that of floating ball valve.

Trunnion ball valve

Trunnion ball valves are suitable for use on various kinds of pipelines of Class 150～Class 2500, PN16～PN160, JIS10K～JIS20K to cut off or turn on the pipeline medium, of which the operation types include worm gear, manual, pneumatic or electric actuators, being in general of flange connection, and butt welding ends connection as well.

Parts and main size

The chart above only lists out some common composition of steel ball valve parts. We may provide other different parts material composition according to the customer’s request or the actual valve working condition.