# Metric plumbing fittings

## Is there a metric pipe thread?

ISO metric machine threads should be used instead of pipe threads for mechanical fastenings such as bolts and nuts. There are two variations of ISO pipe threads . Parallel threads (also called straight threads ) and taper threads . Taper threads have a 1:16 taper and the same reamers can be used as for NPT threads .

## How are plumbing fittings measured?

Measure the Outside Diameter (OD) of your pipe or pipe fitting : Wrap a string around the pipe . Mark the point where the string touches together. Use a ruler or measuring tape to find the length between the tip of the string and the mark you made (circumference)

## What are MNPT fittings?

Showing 1-6 of 6 answers. Hi Joey, mnpt stands for Male National Pipe Thread Taper ( MNPT ), sometimes called NPT or MPT. It means the threads are on the outside of the connector.

## What is the name of pipe fittings?

A tee , the most common pipe fitting, is used to combine or divide fluid flow. It is available with female thread sockets, solvent-weld sockets or opposed solvent-weld sockets and a female-threaded side outlet. Tees can connect pipes of different diameters or change the direction of a pipe run, or both.

## How do I know if my threads are metric?

Metric fastener threads are also specified according to thread pitch, which is the distance between adjacent threads , again in millimeters. This is represented by the last number in a metric bolt’s designation. For example, a bolt labelled M10 x 1.5 is a metric bolt with a 10 mm diameter and 1.5 mm between threads .

You might be interested:  Plumbing hourly pay

## Is pipe measured by ID or OD?

OD and Nominal Pipe Size Pipe is usually measured by NOMINAL PIPE SIZE (NPS). For sizes larger than 12-inch, NPS corresponds to the actual outside diameter . For each nominal pipe size, the outside diameter ( O.D. ) remains relatively constant; the variations in wall thickness affect only the inside diameter ( I.D. ).

## What is the OD of 10 inch pipe?

Pipe Size Chart

PIPE SCHEDULES WALL THICKNESS ( Inches )
Nominal O.D. Inches 80s & E.H.
10 10.750 .500
11 11.750 .500
12 12.750 .500

## Is copper pipe measured by ID or OD?

The nominal size of copper pipe, whether supply lines or DWV, is always 1/8 inch less than the OD measurement. For example, copper pipe that measures 5/8 inch OD, is called 1/2- inch pipe. The ID varies because wall thickness varies. Type K has the thickest wall, followed by Type L, Type M and DWV.

## Is IPS the same as FIP?

Types. Types of piping categorized by the IPS system for faucets include a female IPS , often called female iron piping, or FIP , which has internal threads for joining piping together. The other type — male iron piping or MIP — contains threading on the outside of the pipe.

## How do you connect NPT fittings?

How to Tighten Npt Fittings Insert the male thread into the female fitting . Turn the male pipe thread in a clockwise direction. Continue to turn the male pipe fitting in a clockwise direction until you can no longer do so, approximately two to four full revolutions depending on the size and type of fitting .

You might be interested:  Plumbing fixture schedule

## What is a 1/2 FIP fitting?

The same pipe size can also be called MPT, for Male Pipe Thread . FIP means Female Iron (or International) Pipe and can also be called FPT for Female Pipe Thread . To add confusion, there is NPT, which stands for National Pipe Thread . An equivalent designation is MIP (Male iron pipe) and FIP (Female iron pipe).

## What is 1.5d bend?

The D represents the outside diameter of the pipe, measured in inches. For instance, a 1.5D bend would feature a curve 1.5 times larger than the diameter of the pipe to be bent , so if you needed to bend a pipe 2 inches in diameter with a 1.5D bend , you would end up with a bend of 3 inches in radius.

## What are the types of fitting?

There are many different kinds of fittings, made from a variety of materials: some of the most common types are elbows , tees , wyes, crosses, couplings, unions , compression fittings, caps, plugs and valves.

## Can two fittings be welded together?

Any butt- weld fitting or weld -neck flange can be directly welded to any other butt- weld fitting or weld neck flange without the need for any extra piece of pipe (Pup piece) between them. The only fittings that cannot be connected directly to each other are screwed or socket- welded elbow and Tee fittings .