An open vertical gap or empty space that separates one water system from another water system from another The open gap protects the water system from contamination by backflow or backsiphonage ADVANCE\x 540
Vertical, unobstructed distance, between the flood level in a plumbing fixture and the lowest water supply inlet, such as the distance between the rim of the tub and the faucet
A clear vertical space between a water or drain line and the flood level of a receptacle to prevent back-flow or siphoning from the receptacle in the event of negative pressure or vacuum Most plumbing codes require the air gap to be at least twice the diameter of the water or drain line, with a minimum of 1-1/2 inches (3 8 cm) (See vacuum breaker or back-flow presenter )
Open vertical gap or empty space that separates drinking water supply to be protected from another water system in a treatment plant or other location The open gap protects the drinking water from contamination by backflow or backsiphonage
A physical separation between the free flowing end of a potable water supply line and the overflow rim of an open or non-pressurized receiving vessel
A device to prevent water backflow to a potable water supply It is an unobstructed open space that separates an outlet of the potable water supply (for example, a faucet) from any potentially contaminated source, such as water in a sink or drain pipe
An air gap in the water supply system in the unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, plumbing fixture or other device, and the flood level rim of the receptacle
A means of cross-connection control which eliminates the physical link between a safe water supply and potentially unsafe water Air gap must equal to at least two times the effective diameter of the inlet
The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, plumbing fixture or other device and the flood level rim of the receptacle (2)
The distance required between the linear motor magnet channel and the linear motor moving coil assembly The desired air gap ranges from 030"- 080" depending upon motor type
type of network security where a network is kept physically separate from other local networks and the Internet (Computers); the distance between the contact armature and the iron core which is magnetized (Mechanics); clearance