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



Related Terms

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.

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.

DUAL-GRAVITY VALVE

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

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.

SPANISH WINDLASS

Two initially parallel ropes twisted together by length of wood inserted in a loop between them; used to apply tension.

REACH ROD

An extension arm connecting an above deck valve handle to a below deck valve. A remote shut off mechanism.

CASCADE LIMITER

A limiter circuit that uses two vacuum tubes in series to give improved limiter operation for both weak and strong signals in a frequency-modulation receiver. Also known as double limiter.

SET PRESSURE

Maximum pressure controlled by relief valve. At this pressure relief valve starts releasing a pressure.

COEFFICIENT OF RESTITUTION

The constant e, which is the ratio of the relative velocity of two elastic spheres after direct impact to that before impact; e can vary from 0 to 1, with 1 equivalent to an elastic collision and 0 equivalent to a perfectly elastic collision. Also known as restitution coefficient.

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