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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 ...

Cryogenics (from the Greek kryo-genikos, meaning cold generation) is the science and technology associated with very low temperatures. Depending on one s point of view, any temperature below ?20 F can ...

Shock and impact sensors are used to detect and record shock or impact to a product or package. Shock sensors represent a subtype of inertial sensors, which includes accelerometers and vibration ...

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 ...

As shown in Chapter 1, horizontal and vertical angles are fundamental measurements in surveying. The vertical angle, as already illustrated, is used in obtaining the elevation of points (trig ...

Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction. The purpose of a check valve is to prevent process flow from reversing in the system which ...

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 ...

Spring washers, sometimes called disc springs, are a subtype of washers. They lend their mechanical capabilities to the unique profile of the material: when subject to a load, the irregularities of ...

Find 314 Brushless Motors suppliers with GlobalSpec. Our catalog includes 105,739 manufacturers, 20,959 distributors and 94,449 service providers. The GlobalSpec database includes 62,232 manufacturers ...

Gate valves (also known as knife valves or slide valves) are linear motion valves in which a flat closure element slides into the flow stream to provide shut-off. They are one of the most common ...

Piston pumps and plunger pumps are reciprocating positive displacement pumps that use a plunger or piston to move media through a cylindrical chamber. They are also called well service pumps, high ...