At least 41 thread sizes have been defined, ranging from 1⁄ 16 to 18, although of these only 15 are included in ISO 7 and 24 in ISO 228. Parallel (straight) threads, British Standard Pipe Parallel thread ( BSPP; originally also known as [1] British Standard Pipe Fitting thread/ BSPF and British Standard Pipe Mechanical thread/ BSPM), which have a constant diameter; denoted by the letter G. Compared with other same products in the market, this shower hose joint has thicker interface, explosion-proof and pressure-resistant, more durable. The tapered shape of the NPT threads allows users to continue turning the connection several more degrees after making the seal – until the instrument reaches the desired position. The threads are rounded equally at crests and roots by circular arcs ending tangentially with the flanks where r ≈ 0.

The only difference between the two thread forms is that the A form has a slightly tighter thread tolerance than the B form. In a way, it looks like that it could work but in general, we do not recommend combining two dissimilar threads with each other. For complete details of the different sizes for this type of process connection, view this National Pipe Thread page.Inch BSP - Central heating oil line connectors, some European toilet cistern fill valves (not common in UK). The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. G Thread is Parallel (straight) threads (BSPP - British Standard Pipe Parallel), which have a constant diameter.

You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Even though BSP is now based on metric measurements, this system’s names still reflect their imperial origins.International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. The connector is made of nickel-plated brass, so you can be sure of long-lasting service without any risk of rust or corrosion. Caution: The screw connection must not be used with hot water, drinking water or in the food sector. The taper is 1:16, meaning that for each 16 units of measurement increase in the distance from the end, the diameter increases by 1 unit of measurement. Compared with other same products in the market, this shower hose joint has thicker interface, explosion-proof and pressure-resistant, more durable, suitable for Grohe tap, ballfix valve, the adapter can be applied for 13mm EU taps and 15mm UK faucet, and with the rubber washer make more sealed and leak-proof.

Tightening, though, has to be done with care: Too much compression can lead to galling, and over-tightening can damage the threads. The official standard changed to the EN 837 when the European Union was formed and they decided to use the same standards in every country.

They are both the same, since the ’19’ refers to 19 threads per inch (tpi) which is the standard thread pitch for a 1/4 BSP P thread. It's also silicone-free, so you can use it in no-contamination manufacturing units like soldering, special packaging or coating facilities. I have a pressure sensor for use on air with a G1/4 female process connection and would like to convert it so it can accept 6mm OD tubing.