A electrical valve that permits charging of two batteries from one charger without paralleling the batteries.



Related Terms

DUAL-GRAVITY VALVE

A float-operated valve that operates on the interface between two immiscible liquids of different specific gravities.

FOUR-WAY VALVE

A valve at the junction of four waterways which allows passage between any two adjacent waterways by means of a movable element operated by a quarter turn.

MIXING VALVE

Multi-inlet valve used to mix two or more fluid intakes to give a mixed-phase flow.

DRY TEST METER

Gas-flow rate meter with two compartments separated by a movable diaphragm which is connected to a series of gears that actuate a dial; when one chamber is full, a valve switches to the other, empty chamber; used to measure household gas-flow rates and to calibrate flow-measurement instruments.

CLOSE-OFF RATING

  1. The maximum allowable pressure drop to which a valve can be subjected at commercial shutoff. 2. The maximum allowable pressure drop between the outlet of a three-way valve and either of the two inlets, or between the inlet and either of the two outlets.

DOUBLE BLOCK AND BLEED SYSTEM

A valve system configuration in which a full-flow vent valve is installed in a pipeline between two shutoff valves to provide a means of releasing excess pressure between them.

COMPRESSOR VALVE

A valve in a compressor, usually automatic, which operates by pressure difference (less than 5 pounds per square inch or 35 kilopascals) on the two sides of a movable, single-loaded member and which has no mechanical linkage with the moving parts of the compressor mechanism.

DIFFERENTIAL MANOMETER

An instrument in which the difference in pressure between two sources is determined from the vertical distance between the surfaces of a liquid in two legs of an erect or inverted U-shaped tube when each of the legs is connected to one of the sources.

GANTRY-TYPE ROBOT

A continuouspath, Cartesian-coordinate robot constructed in a bridge shape that uses rails to move along a single horizontal axis or along either of two perpendicular horizontal axes.

GATE

A circuit which has two or more input-signal ports and which delivers an output only if and when every input signal port is simultaneously energized. circuit; passive AND gate.

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