Intro4u2u

The Schrader Valve is a valve stem invented by August Schrader and is used on virtually all automobile tires and lower pressure bicycle tires. It is a poppet valve assisted by a spring. Schrader valves are also used on the fuel rail of some direct fuel injection engines and on some automotive air conditioning systems,

A solenoid valve is an electromechanical valve for use with liquid or gas controlled by running or stopping an electrical current through a solenoid, which is a coil of wire, thus changing the state of the valve. The operation of a solenoid valve is similar to that of a light switch, but typically controls the

Plumbing, from the Latin for lead (plumbum), is the skilled trade of working with pipes, tubing and plumbing fixtures for potable water systems and the drainage of waste. Plumbing originated during the ancient civilizations such as Roman, Persian, Indian, and Chinese civilizations as they developed public baths and needed to provide potable water, and drainage

Variable valve timing, or VVT, is a generic term for an automobile piston engine technology. VVT allows the lift or duration or timing (some or all) of the intake or exhaust valves (or both) to be changed while the engine is in operation. Two stroke engines use a Power valve system to get similar results

Zone valves as used in home hydronic systems are usually electrically powered. In large commercial installations, vacuum or compressed air may be used instead. In either case, the motor is usually connected to the water valve via a mechanical coupling. For electrical zone valves, the motor is often a small shaded-pole synchronous motor combined with a

In my view, the game industry never gets dull. There’s always something coming down the road that fans are going to appreciate. The new year will be no different in that respect. I’m expecting the PC games industry to bounce back big time in 2007. First we get Windows Vista with its built-in game organizer and

One Touch Operation Reduces Oil Changing Time and Expenses Eliminates Stripped Thread No More Contact with Hot Oil No Messy Hands or Cloths Easy Installation Introducing the best way to change oil, the Engine Oil

Pressure Tap For GasFor non-condensing gasses, tapping point should be made to the side or upper quadrant of the process line and fitted with a suitable process isolation valve, The pressure transducer (transmitter) should be positioned above the tapping point with its process connection downwards to allow any condensate

Valve positioners compare a control signal to a valve actuator’s position and move the actuator accordingly. They are used with both linear valves and rotary valves. When a control signal differs from the valve actuator’s position, the valve positioner sends the necessary power to move the actuator until the correct position is reached. There are

Electrohydraulic valve actuators and hydraulic valve actuators convert fluid pressure into motion in response to a signal. They use an outside power source and receive signals that are measured in amperes, volts, or pressure. Some electrohydraulic valve actuators and hydraulic valve actuators move rotary motion valves such as ball, plug, and butterfly valves through a

Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion. Linear motion devices open and close gate, globe, diaphragm, pinch and angle-style valves with a sliding stem that controls the position of the closure element. Rotary motion devices move ball, plug and butterfly valves a quarter-turn (90°) or more from

Electric actuators mount on valves which, in response to a signal, automatically move to a desired position using an outside power source. Single-phase or three-phase AC or DC motors drive a combination of gears to generate the desired torque level. There are two basic types of electric actuators: rotary and linear. Each type of actuator

Industrial valves are classified in many different ways. They can be distinguished by material of construction, media handled, and/or application. Most industrial valves are made of metal or plastic materials. Metal valves are made of aluminum, brass, bronze, copper, cast iron, ductile iron, steel, or stainless steel. Plastic valves are made of acetal polymers, polyvinyl

Steam valves are used to control the flow and pressure level of steam and heated water vapor. They are usually made of aluminum, brass, bronze, cast iron, ductile iron, copper, steel, or stainless steel. There are several basic types of products. Angle valves position the inlet and outlet at 90° to provide maximum flow. Ball

Globe valves are linear motion valves with rounded bodies, from which their name is derived.  They are widely used in industry to regulate fluid flow in both on/off and throttling service.  Globe valves consist of the following moving parts – the disk, the valve stem, and the handwheel. The stem connects the handwheel and the

Positive displacement valves are precision dispensing devices designed to provide precise fluid dispensation depending on applications. They function by opening quickly, releasing product, and closing again.  This process may take place numerous times per second.  Positive displacement valves use physical moving force to drive material out of the valve. They are typically used to dispense

Single component diaphragm valves are designed to provide a precise fluid supply depending on the application. The dispensed output can be a bead, dot or fill. Material pressure upon the valve forces the diaphragm to allow material through the fluid body and out the dispensing tip. Applying air pressure to the top of the diaphragm

Hydraulic valves contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. They range from simple shutoff valves to precision control valves. Common types of hydraulic valves include angle, ball, block and bleed, check, control, cartridge, directional, drain, needle, poppet, pressure relief, safety, shut off, solenoid, spool, and stack mounted valves.