BSPP pressure gauges have a longer male thread and use a copper crush washer that is squeezed in between the bottom of the male fitting and the bottom of the female BSPP hole, forming a pressure tight seal. No thread sealant is needed to form a seal.

Mar 7, 2025 · Malone Specialty Inc. offers Carbon Steel Bonded Seals for BSPP Threads as well as 316 Stainless Steel Bonded Seals for BSPP Threads, in various sizes. Our Carbon Steel Bonded Seals feature Nitrile Rubber (Buna-N) seals, where as our 316 Stainless Steel Bonded Seals feature Viton® seals.

One of the rarer methods of sealing a fitting in port is Metal to Metal Sealing, also known as Cutting Face or Type B. This design creates a seal by means of a sharp “cutting face” at the base of the male thread that cuts into the flats or “spotface” surrounding the port when the fitting is threaded and tightened.

A British Standard Pipe Parallel is the straight equivalent of a BSPT thread. BSPP connections require a bonded seal ring, which is sandwiched in between the shoulder of the male fitting and the face (opening) of the female fitting.

Feb 26, 2025 · NPT Seals: Seal is formed by mechanical wedging through threads. Usually, thread sealant or PTFE adhesive is needed to increase safety. BSP Seals: Sealing is ensured through compression of tapered threads, usually sealed with rubber gaskets or O-rings.

BSP and JIC differ in sealing mechanisms and pitch angles; JIC uses a flared sealing surface, while BSP may use a bonded seal or o-ring. Because of these differences, they are not directly interchangeable, and you typically need an adapter to connect the BSP fitting to the JIC system.

Understanding the different thread types and sealing forms for BSP, JIC, Thrust-Wire and Face Seal Fittings is important.

Learn how to seal BSP fittings effectively in this comprehensive guide. Discover essential tips, techniques, and materials to ensure leak-free connections.

Ralston Instruments has adapters to both male BSPT adapters and female BSPT adapters. BSPP (British Standard Parallel Pipe) is most popular in the UK, Europe, Asia, Australia, New Zealand and South Africa. It is a parallel thread fitting that uses a bonded seal ring to do the sealing.

Dec 21, 2023 · There are main three types of seal methords for BSPP stud fittings and BSPP thread port: BSPP male with O-ring and retaining ring, BSPP male with bonded seal/dowty seal, and BSPP male with captive seal/ED seal.