|
TERM
|
EXPLANATION
|
| |
|
|
ID |
Inside diameter. All pipes are sized according
to their inside diameter. |
|
IPS |
Iron Pipe Size (OD).
Same as NPS. Standard pipe threads. Also Internal Pipe Swivel connection
(female) |
|
ISO |
International Standards Organization
based in Geneva Switzerland. Among the many standards it issues are pump
and seal standards for the metric community. |
|
ISO 9000 |
A series of five standards for developing
a total quality management system. Developed by the
International Standards Organization |
|
Immersion |
A term referring to something submerged in
water. |
|
Impeller |
Rotating wheel with vanes found inside a centrifugal
pump. As it spins at high speed it draws fluids in and thrusts them under
pressure to the discharge outlet. |
|
Incomplete Combustion |
A product of inadequate ventilation which
restricts the flow of air into an appliance. This may lower oxygen content
in the surrounding air. |
|
Incoming Inlet Temperature |
Temperature of water entering the tank.
|
|
Indirect Waste Pipe |
Waste pipe used to convey gray water by discharging
it into a plumbing fixture such as a floor drain. |
|
Induction Motor |
The most common type used in industry. Has
a slippage of 2 to 5 percent compared to synchronous motors.
|
|
Influent |
The stream entering a unit, stream or process,
such as the hard water entering an ion exchange water softener.
|
|
Injection |
The drawing of primary air into a gas burner
by means of a flow of fuel gas. |
|
Inlet |
An entrance, opening, or aperture for the
intake of fluid or gas. |
|
In-line Pump |
Small pump which pumps fluid through a line
on which it is supported and mounted. |
|
Input |
The amount of fuel used by a water heater
in a given period of time, usually 1 hr. |
|
Input Rate |
The quantity of heat or fuel supplied to an
appliance, expressed in volume of heat units per volume of time (BTUs/hour).
|
|
Input Rating |
The gas burning capacity of an appliance in
BTU's per hour as specified by the manufacturer. |
|
Insert Fittings |
Fittings equipped with external, annular rings
fir gripping, which are inserted into flexible rubber or plastic tubing
as a connection. |
|
Ion Exchange |
A reversible process in which ions are released
from an insoluble permanent material in exchange for other ions in a surrounding
solution; the direction of the exchange depends upon the affinities of
the ion exchanger for the ions present, and the concentrations of the
ions in the solution. |
|
Ionization |
The process in which atoms gain or lose electrons;
sometimes used as synonymous with dissociation, the separation of molecules
into charged ions in solution. |
|
Island Vent |
An air admittance valve. |
|
Isolation Mount |
The four small rubber feet located beneath
a whirlpool's pump base, or attached to the pulse canister assemblies,
designed to reduce noise and vibration when the whirlpool is running.
|
|
Instantaneous Water Heater |
A type of water heater that heats water as
it flows through a heat exchanger coil. |
|
Insular® |
Kohler's registered trade name for factory-installed
insulation, which minimizes condensation on the outside of the tank when
exposed to high humidity. |
|
Insuliner® |
Kohler's Registered trade name for factory-installed
tank insulation, which minimizes condensation on the outside of the tank
(also known as tank sweating) when exposed to high humidity. |
|
Integral Stops |
Stops that allow the owner to shut off water
supply at the faucet for maintenance without shutting off the water supply
to the entire house. |
|
Integral Vacuum Breaker
|
A device typically used in a sink or shower
sprayer to keep water from back-flowing into the fresh water supply.
|
|
Interceptor |
Device for separating grease and oil from
drainage system. (See
grease trap.) |
|
Isothermal |
Action that takes place with no change in
temperature. |
|
Top of Page |
|
