1/2" BSP Thread Pipe Connection Elbow Male x Female Screwed Fittings

Product Information

The hexagon bush collection includes stainless steel reducing bush suitable for various applications. Sizes range from 1/4” to 4”. Inch BSP - Central heating oil line connectors, some European toilet cistern fill valves (not common in UK). In brief: products for sale in the UK and Europe ship with BSP threads; products that we export to North America are fitted with NPT threads. Using the table below we can see that a thread measuring 1/2" is actually a 1/4" BSP thread. Similarly, a thread The threads are rounded equally at crests and roots by circular arcs ending tangentially with the flanks where r ≈ 0.1373 P

In Europe Metric (DIN) pipe threads are common on German machines. These generally have a 1.5mm thread pitch, although

NPT has flattened peaks and troughs where BSP is rounded. NPT has a thread angle of 60º where BSP is 55º.

The standard ISO 7 - Pipe threads where pressure-tight joints are made on the threads consists of the following parts: Please note that it is only recommended to use these products with air or pure water (pure water must not exceed 60°C). In pure water applications, if the temperature of the fluid exceeds 60°C, the heat and moisture can cause damage to the fitting's body and gasket.

It is not recommended to run within the maximum pressure limits for prolonged periods of time as this can severely deteriorate the hose and fittings life span. Although it is not recommended, these products can be used with other fluids but must not be corrosive or flammable. Please note, using aggressive fluids will reduce the working life of the hose or fitting. At certain sizes, NPT and BSP share the same number of threads per inch - at ½" and ¾" - but at all other sizes the two are quite different. The table below lists the TPI for both NPT and BSP at sizes commonly used with domestic radiators. Nominal

BSP sizes don't match up with what you measure on the scale of a ruler, which can obviously cause some confusion. For example a 1/2 inch BSP thread (see above) actually measures more like 3/4 inch with a ruler.

How to loosen brass fittings that are stuck?

Please use a suitable tool to fasten and remove the fittings through the outer hexagon or inner hexagon of the fitting body. When tightening the fittings threads, please refer to the recommended torque amount listed in the recommended torque values information above. If the torque amount exceeds the recommended value, it can cause stress to the threads and may cause the fitting to break, or the gasket to deform and cause the fitting to leak. Unions are some of our most popular BSP pipe fittings. Our screwed stainless steel cone seat unions range from 1/8” to 4” and are suitable for natural gas, LPG, hot & cold water systems and other applications. In North America NPT, JIC and ORFS pipe threads are common. Some NPT threads are similar to BSPT threads so if in NPT - National Pipe Thread - is the US standard. Most of the rest of the world uses BSP - British Standard Pipe. 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. [3] [4] [5] [6] The size number was originally based on the inner diameter (measured in inches) of a steel tube for which the thread was intended, but contemporary pipes tend to use thinner walls to save material, and thus have an inner diameter larger than this nominal size. In the modern standard metric version, it is simply a size number, where listed diameter size is the major outer diameter of the external thread. For a taper thread, it is the diameter at the "gauge length" (plus/minus one thread pitch) from the small end of the thread. 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.