Diaphragm valves get their name from a flexible disc which comes into contact with a seat at the top of the valve body to form a seal. A diaphragm is a flexible, pressure responsive element that ...

The purpose of a structure is to support the loads for which it has been designed. To accomplish this it must be able to transmit a load from one point to another, i.e. from the loading point to the ...

Display metrology provides an objective understanding of a display’s quality and performance through data, supplying tools for display innovation and evaluation to safeguard manufacturing investment.

Band reject or band stop filters (also known as notch filters) allow the passage of all frequencies with the exception of a frequency band that is attenuated or rejected. A notch filter can be built ...

A bolt is a type of threaded hardware fastener that is used to position two workpieces in specific relation to each other. Bolts come in several configurations for their application and specification ...

Ball valves are quarter-turn, straight-through valves that have a round closure element with matching rounded seats that permit uniform sealing stress. The valve gets its name from the ball that ...

Rotary switches move in a circle and can stop in several positions. They are used to control many different circuits with a single switch. These devices have some advantages over other switches since ...

Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion. There are two main forms: the piston actuators and diaphragm actuators. Piston actuators are ...

Spacecraft thermal control techniques can be categorized as passive thermal control (PTC) or active thermal control (ATC). PTC can be achieved by control of conductive and radiative heat paths through ...

Varvel ’s economical aluminum body helical speed reducer provides highly reliable power transmission for general purpose applications. Designed, manufactured, and ...

Worms and worm gears are gear sets that offer high gear reduction and torque multiplication with a small footprint. A worm drive is a cylindrical gear with a shallow spiral thread that engages the ...

Compressors are mechanical devices used to increase the pressure of air/gas mixtures such as fuel gas, ammonia, air, hydrogen, etc., depending on the process requirement. Compressors are also used to ...