Ball Valve
The ball valve has a spherical plug as a closure member. Seal on ball valves is excellent, the ball contact circumferentially uniform the seat, which is usually made of...
Relief Valve
The relief valve (RV) is a type of valve used to control or limit the pressure in a system or vessel which can build up by a process upset,...
Control Valves
Control valves are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from...
Plug Valve
Plug valves are valves with cylindrical or conically tapered "plugs" which can be rotated inside the valve body to control flow through the valve. The plugs in plug valves...
Needle Valve
A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only capable...
Diaphragm Valve
Diaphragm valves are used on shut-off and throttling service for liquids, slurries and vacuum/gas. The seal is achieved by a flexible membrane, usually elastomer, and possibly reinforced with a metal...
Strainer
When debris, such as scale, rust and other foreign matter mixes with the water, oil, gas, air, steam or other media and is allowed to flow through a pipeline,...
Check Valve
Check valves are probably the most misunderstood valves ever invented. If you mention check valves to most plant personnel, the typical response is “they don’t work.” In fact, those...
Globe Valve
OS & Y Type, Rising Stem, Bolted Bonnet ASA / ND Design Controls Globe Valves are Outside Screw, Rising Stem, Bolted Bonnet Construction, threads are away from the line fluid and...
Gate Valve
Gate valves have an extended use in the petrochemical industry due to the fact that they can work with metal-metal sealing. They are used in clean flows. When the valve is...