Pipe fitting and their sizes

The dimensions of pipe fittings are given in the English or metric system. It contains a variety of features and steps and for this reason the use of regular outlines will be discussed in this article. This article introduces readers to some things to consider regarding tube fitting and the like.


Pipe fittings have many techniques. Common methods are compression fittings, pitless adapters, flexible fittings, and four-way fittings. Techniques such as bulkhead and cap fastening and rigid fastening are also known for the method. Elbow variations can be 90 or 45 degrees. Reducing elbows, compression rings and expansion joints are also known types of fittings. Variations of their sizes are also available for flanges, plugs, nipples and tips. To be realistic, configurations for hose settings vary: it really depends on the usage.

Shapes and materials

Materials and shape are important features to check when assembling pipes. The usual shapes are round, square, oval and rectangular. Materials also vary, but to name a few, carbon, bronze, ceramic, and ABS are generally preferred. Sandstone, flour, fiberglass, cast iron and EPDM are some materials used. Others prefer stainless steel and steel alloys for their flexibility, while titanium and rubber could also be good materials. The different functions of tube fittings explain why different materials are used.

Schedule numbers

ANSI or the American National Standards Institute has developed a standard that calculates the thickness of the wall and that is the Schedule Numbers. Stock numbers include all pipe sizes: from NPS 1/8′ to NPS 36′. It should be noted that this connection only applies to fittings that correspond to the exact drawing number of the American National Standards Institute.

Metric and English measurements

The metric measurement system uses meters or millimeters, while standard English gauges use inches when measuring. A 4mm four-way or crossover coupler is about 3/16″ and 3mm for a 1/8″ coupler. A 2mm is approximately (plug or cap) 1/16 inch. For other sizes, the internet is one of the best sources to look up standard measurements. Knowing about pipe joining could definitely be beneficial in work projects related to pipe joining. However, consideration should also be given to requesting this information from someone who is a veteran.