The Same And Different Parts of BPE And 3A Pipe Fittings

The Same and The Differences between BPE And 3A Pipe Fittings

In sanitary piping systems, BPE fittings and 3A fittings are two very common types of fittings. However, it may be difficult for people unfamiliar with it to distinguish between conventional and 3A fittings as well as BPE fittings. This article will introduce the similarities and differences between the two fittings.

First of all, what are the similarities between the two? Both BPE and 3A fittings are considered sanitary. Both measure the outer diameter of the tube in the same manner as the sanitary tube. This means you can solder two fitting types together. The size of the clamps is also the same. This is a similar place, and the rest of this article highlights some of the differences between the two.

The root of 3A fittings lies in the dairy industry. They are marked with a 3A symbol to let customers know that these fittings are specifically designed for dairy applications. With the development of the industry, ASMEBPE has developed its own fittings standard. These fittings have an extended section to accommodate the extensive use of rail horns in welding procedures used in the connection of pharmaceutical fittings. BPE fittings dimensions are requirements outlined in the bioprocess equipment standard. The BPE fittings are specifically designed to be fully drained when properly installed.


Another difference that should be emphasized is material availability. 3A fittings are usually available in 304 and 316 steel, and BPE fittings are available in 316L steel only. The I-LINE BPE fittings you have seen, the answer is definitely no, because BPE only has special welding and clamping ports. There are no other sanitary fitting styles such as I-LINE, John Perry or Q-LINE.

Surface treatment

Both 3A and BPE聽fittings have what we consider to be a surface finish. Hygienic surface treatment is generally considered to be any surface treatment of 32 Ra or better. 3A fittings meet this specification and often exceed it. However, there are several additional specifications for BPE fittings.