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  1. Valves

Valves

Valves

A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically pipe fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure.
 
The simplest, and very ancient, valve is simply a freely hinged flap which drops to obstruct fluid (gas or liquid) flow in one direction, but is pushed open by flow in the opposite direction.
 
Valves are majorly used in water controlling for Irrigation as well as industrial, military, commercial, residential, and transport sectors. Such as drip irrigation and sprinkler irrigation, oil and gas, power generation, mining, water reticulation, sewage and chemical manufacturing.
 
In daily life, most noticeable are plumbing valves, such as taps for tap water. Other familiar examples include gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and valves in car engines. In nature, veins acting as valves are controlling the blood circulation; heart valves control the flow of blood in the chambers of the heart and maintain the correct pumping action.
 
Valves play a vital role in industrial applications ranging from transportation of drinking water to control of ignition in a rocket engine.
 
Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers.
 
More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.
 

Emerson Pactrol

Emerson Pactrol Controls, now part of Emerson Climate Technologies, designs and manufactures automatic ignition mechanisms and control devices for gas and oil fired appliances for both domestic and commercial use. Earlier Emerson Pactrol Controls White Rodgers already incorporated. ITT Controls delivers products and components of Emerson Pactrol Controls and White Rodgers.

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Barton Instruments

ITT Controls also supplies products of Barton Instruments. In the meanwhile Barton Instruments is part of Cameron's Measurement Systems and is world leader in five essential areas including DPU products, turbine meteres, sampling and mixing, ultrasonic flow meters and electronic flow measurement.

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Asco Controls

Asco Controls offers a wide range of products and is the leader of solenoid valves. We combine 100 years of experience with technology. Asco Controls offers the largest selection of 2, 3 and 4-way solenoid valves. A solenoid valve, the electromagnetic part of the valve which consists of a coil. The valves of Asco Controls supplied by ITT Controls are made to the most demanding fluid control applications to execute.

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