#1 INCH DIAMETER ACTUAL SIZE SERIES#

Threads have a gender-either male or female. You can always measure the threads or test different types of fittings to find which type you need. If you live in Europe, then you likely need BSP.

Chances are, if you live in the United States, the you need NPT. If your equipment does not display the thread type, then you can't tell whether you have an NPT or BSP just by looking at the threads. Many times, such damage can’t be repaired. If you try to wrench the NPT thread into the BSP, you’ll wreck the threads on your machine. You didn’t realize, however, that your coffee maker was made in Italy and needs BSP threaded fittings. and purchase an NPT to use on your coffee maker. What are you going to use the fitting for?

The thread angle is the difference between the threads or the valley between the peaks.ĭetermine thread type and pipe size in 5 steps 1.

The pitch is the distance from the peak of one crest to the opposite of another.

The thread dimension refers to the major diameter or outside measurement.

Threads come on a variety of fittings, from PVC pipe fittings to quick-connect adapters.

#1 INCH DIAMETER ACTUAL SIZE SERIES#

Threads in this series include UNC (coarse), UNF (fine), UNEF (extra fine), and UN (fixed pitch). They possess the same 60° angle between crests and troughs as NPT but are not interchangeable with them. UNS (unified special thread) is the standard for screws, nuts, bolts, and other threads in the United States and Canada. BSPP threads are parallel (or straight), while BSPT threads form a tapered seal. There are two types of BSP threads: BSPP and BSPT. The angle between these crests and troughs with BSP threads is 55° instead of 60°. Unlike NPT threads, BSP threads’ crests and troughs are rounded instead of flat. BSPīSP (British standard piped) is the British pipe fitting standard and is also used frequently in Australia and the commonwealth countries. Despite their names, MIP and FIP are not always made of iron they are commonly made from steel and brass as well. MIP refers to fittings with male threads, and FIP refers to fittings with female threads. MIP (male iron pipe) and FIP (female iron pipe) are both pipe fittings with NPT threads. 60° angle between flat crests and troughs.NPT fittings are distinguishable by the following characteristics: These threads were originally made from steel and brass, but they can now be made with materials such as bronze, PVC, and cast iron. The tapered threads offer a more reliable seal than straight threads and are used in plumbing, hydraulic, and gas transportation applications. NPT (national pipe tapered) and NPS (national pipe straight) are the tapered thread standard that has been used in the United States since 1886. Many times, the fitting itself will tell you what thread type you need. The letters may be inscribed or stamped on the top. Most pipe thread types are not interchangeable. You can force threads together, but if they don’t completely match, then your fittings won’t seal. NPT, MIP, and FIP work together but do not mate with any other types. An NPT will not fit a BSP.

1 inch diameter actual size