Dump valves are fitted to the engines of turbo charged cars and sit between the turbo outlet and the throttle body. When transitioning from a boosted state to a closed throttle state (as in between shifts), due to inertia, the turbo continues to pressurize air, but the closed throttle prevents the compressed air from entering the engine. In this case the ...

Many fluids cannot be controlled through conventional valves because of heavy contaminants, high solid content or heavy viscosities. So many industries use specific valves, called pinch valves, to control fluids, wastewater, slurries, abrasives and corrosive chemicals. Pinch valves includes any valve with a flexible elastomer body that can be pi...

As soon as mankind was able to boil water to create steam, the necessity of the safety device became evident. As long as 2000 years ago, the Chinese were using cauldrons with hinged lids to allow (relatively) safer production of steam. At the beginning of the 14th century, chemists used conical plugs and later, compressed springs to act as safety devices ...

CORDOBA, ARGENTINA--August 18, 2008--Researched by Industrial Info Resources (Sugar Land, Texas)--On August 11, Valero Energy Corporation (NYSE:VLO) (San Antonio, Texas) shut down the 65,000-barrel-per-day (BBL/d) light gas-oil distillate hydrotreater (D2) at the company's San Nicolas refinery in Aruba because of a broken valve. The 42,000-BBL/d Visbreake...

A piston valve is a device used to control the motion of a fluid along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder.  In fact, the piston valve is a variant of the conventional globe valve, with the traditional seat and cone replaced by a piston and lantern bush. The piston is connected to the valve stem and ...

A needle valve is a type of valve having a small orifice and a threaded, needle-like plunger. It allows precise regulation of flow, although it is generally used for, and is capable of, only relatively small flow rates.  Needle valves are similar in design and operation to the globe valve. Instead of a disk, a needle valve has a long tapered point a...

A diaphragm valve is a shutoff or control valve with a flexible membrane, or diaphragm, which seals the valve completely or partially once the valve is engaged. Once the actuator is engaged, a stem within the valve pushes a plug or compressor against the diaphragm. The diaphragm is pushed against a raised section of the valve, creating a seal. This seal s...

If you're throwing off the covers in the bedroom, just to keep the lounge warm then you should get Thermostatic Radiator Valves fitted. A Thermostatic Radiator Valve, (TRV), is a self regulating valve fitted to hot water heating system radiators. It is a device that controls the flow of hot water to the radiator in effect controlling the temperature of t...

Plug valves, also called cock or stop-cock valves; date back to ancient times, where they were developed for use in citywide Roman plumbing systems. Today, they remain one of the most widely used valves for both on/off and throttling services. A plug valve is like a ball valve except that it has a tapered conical plug instead of a ball.  Plug valve ...

Valves have long been more than just a simple device for turning on and shutting off flow. Valve design has kept in step with industrial progress - the development of piping techniques, and the ever-growing list of fluids for processing, power, and finished product. Industry loses millions of dollars each year through the consequences of improper valve se...