Now Hiring
Screened & Approved HomeAdvisor Pro

Contact Us Today for a Free Estimate

Call 706-658-4236 now

or leave your details below and we’ll get in touch soon as soon as possible.

GLOSSARY OF PLUMBING TERMS | N

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

 

NH – No Hub

NOM – Nominal. Usually refers to the Inside diameter of trade sizes of copper pipe and some CPVC pipes. Not for Iron Pipe connections. For example, a NOM Comp. Fitting is actually 5/8″ because  pipe has an OD of 5/8″.

NPS – National Pipe Straight threads standard, Same as IPS.

NPSP (Discharge) – Non Point Source Pollution. Nutrients, sediments, toxic substances, and pathogens that degrade waterways. NPS occurs mainly through storm water runoff.

NPSHA – Net Positive Suction Head Available to prevent cavitation of the pump. It is defined as: Atmospheric pressure + gage pressure + static pressure – vapor pressure – friction loss in the suction piping.

NPSHR – Net Positive Suction Head Required to stop a pump from cavitating. This number is provided by the pump manufacturer.

NPT – National Pipe Tapered thread standard. The same as IPS.

NSF – National Sanitation Foundation

Natural Gas – A colorless, odorless fuel derived from the earth, consisting primarily of Methane (CH4). Odors are added to aid in leak detection.

Neo Angle Base – A shower base designed to allow the shower to fit into a corner using minimal floor space while maintaining an elegant look.

Negative Pressure – Less than atmospheric pressure.

Net Usable BTU – That portion of a fuel’s heat energy actually transferred into the water by a heater.

Nipple – A short length of pipe installed between couplings or other fittings.

Nipple Extractor – A tool used to unscrew sections of pipe.

No-Hub Connector – A connector for no-hub iron pipe consisting of a rubber sleeve and a stainless steel band secured by hose clamps. A variation, a neoprene sleeve with two adjustable steel bands, is used for connecting dissimilar materials, as when connecting new plastic pipe to an existing cast-iron drainpipe.

Non-CFC Foam – Insulation that minimizes the use of Chlorofluorocarbons.

Non-Ferrous – Not containing iron

Non-Portable – Not suitable for drinking

NPSP (Discharge) – Non Point Source Pollution. Nutrients, sediments, toxic substances, and pathogens that degrade waterways. NPS occurs mainly through storm water runoff.

 

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

 

Source: “Plumbing Terms” Standard Plumbing Supply. 11 Sept. 2008

OUR SERVICE AREA

Proudly serving Atlanta & surrounding counties including:

Banks County, GA
Barrow County, GA
Clarke County, GA
Dekalb County, GA
Forsyth County, GA
Fulton County, GA

Gwinnett County, GA
Hall County, GA
Jackson County, GA
Walton County, GA
Show all