1) Couplings Couplings are the most basic fitting type, used to connect two pipes that have the same diameter and are of the same type. In particular, couplings are used when your plumber needs to extend the length of your piping. Additionally, they're also occasionally used to repair burst or leaking pipes.
Tees. Tee pipe fittings contain one inlet and two outputs, one at a 90-degree angle and the other at 180 degrees. Tee fittings get their name from their resemblance to the letter “T”. These fittings are one of the most common types of pipe fittings you will find in plumbing systems.
The most relevant stainless steel pipe fittings standards are ANSI B1. 20.1 and ASTM A351. ANSI B1. 20.1 provides the considerations when categorizing pipe fittings by dimension, while ASTM A351 defines the materials and castings used within pipe fittings.
There are three main types of hydraulic hose fittings: the O-ring, the mated angle, and the tapered thread connectors. Other types are used in different and specialized applications, but those are the three most common.
Although JIC and SAE flare fittings may look similar, it is important to remember they have different design specifications and pressure ratings. Therefore, it is not recommended to interchange JIC and SAE fittings.
NPT (or National Pipe Taper) is a U.S. standard for tapered threads widely used on pipes and fittings for over 100 years. NPT connections rely on thread deformation- a metal to metal sealing design where the threads of the connectors themselves form together.
332996 - Fabricated Pipe and Pipe Fitting Manufacturing
This U.S. industry comprises establishments primarily engaged in fabricating, such as cutting, threading, and bending, metal pipes and pipe fittings made from purchased metal pipe.
ASME B16. 11 is the standard for the forged steel fittings, including socket weld and threaded type. Material including carbon steel, alloy steel and stainless steel. Also described as Class 2000, 3000, 6000 threaded end fittings and Class 3000, 6000, and 9000 for socket weld end fittings.
Common materials used in best plumbing pipe fittings include PVC (Polyvinyl Chloride), CPVC (Chlorinated Polyvinyl Chloride), copper, brass, and stainless steel. PVC is lightweight, corrosion-resistant, and ideal for cold water systems. CPVC can withstand higher temperatures, making it suitable for hot water systems.
Nipples are fittings used to connect straight pipe runs. They consist of a short piece of pipe with male threads on each end.
Copper and PEX are the most common pipe materials used in homes. Copper pipes are durable, corrosion-resistant, and can be used for hot and cold water. PEX seems to be replacing copper pipes at a high rate since it is less expensive, more flexible, and easier to install.
Selecting Your Pipe Fittings:
The points to consider are as follows: Consider the Tubing Used: For instance, barbed fittings work better in flexible tubing while compression fittings work best with rigid tubing. Determine Material Compatibility: Material selection plays a vital role in the proper working of fittings.
The Billiard is the most popular and well-known shape, perfect for those approaching slow smoking. Its design is based on the perfect balance and proportion between mouthpiece and shank.
3M is referring to 3000 lbs fittings, which the forged pipe fitting can withstand up to 3000 PSI or 206 Bars. Material Identification of A105 shall not be marked as carbon steel material is group under standard material grade.
Piping codes adhere to standards set and controlled by the American Society of Mechanical Engineers (ASME). Anyone responsible for the design, operation and maintenance of piping systems should be familiar with these standards, or have easy access to them.
Wrap a string around the pipe (if it's a male thread) and mark where the string touches. Determine the length between the end of the string and the touch point, which gives you its circumference. To get diameter, divide the circumference by pi (3.14159). You may need to convert decimal to fraction.
NPT and NPS
NPT (national pipe tapered) and NPS (national pipe straight) are the tapered thread standard that has been used in the United States since 1886. The tapered threads offer a more reliable seal than straight threads and are used in plumbing, hydraulic, and gas transportation applications.
The code for stainless steel seamless pipe is ASTM A312. This code is an international material standard for the manufacture of stainless steel pipe, developed by the American Society for Testing and Materials (ASTM).
Straight Pipe Threads need a gasket or O-ring to create a seal. While NPT and NPS threads will engage, they do not seal properly with each other.
Different Types of Screw Threads. There are different types of threads found, and some main types of threads are parallel threads, including BSPP, UN/UNF, and metric parallel. The second type of thread is tapered threads in which metric tapered, BSPT, and NPT thread/NPTF thread are included.
NPT (National Pipe Taper) is a general-purpose tapered pipe thread, and NPTF (National Pipe Taper Fuel) is a dryseal tapered pipe thread. Visually, NPT and NPTF pipe threads look identical.