Bsp thread chart

Measure the BSPT male thread OD and female thread ID at the first full thread near the end of the fitting. BSPT male and BSPP male with conical 30° seat (60° included angle) seal against matching conical 30° seat of BSPP female swivel. BSPP O Ring male connector has straight threads and O Ring with metal Retaining Ring. Some important notes from the ISO 2- standard: - Both internal and external threads are parallel threads.

British standard pipe thread rate chart.

BSPP threads are not suitable joint where pressure-tightness is made on the thread. NPT and BSP thread pitches ( threads per inch) are listed below. Order on line BSPT Taps, Rc Series.

BSP thread uses Whitworth thread form with flank angle of , All dimension are in millimetres. The size number was originally based on the inner diameter measured in inches (2 mm) of a steel tube for which the thread was intende but is in the modern metric version of the standard simply a size number. Caliper – A caliper is a useful tool that measures the outside diameter of a male thread and inside diameter of a female thread.

Thread Identifying Tools You Need.

The fine thread series must have both diameter and pitch called out, as MS x 0. If pitch is not called out, the coarse thread is assumed. Sometimes other sizes are available. The information contained herein is for reference only in the application of spare and replace parts on existing products and equipment. Pitch Metric MMMMMMMMMM1Major Dia. The width of the flat at both top and bottom are therefore different.

The table below gives full machining details. These threads come in versions: parallel (BSPP), and tapered (BSPT). National Pipe threads are similar in function to BSP threads, but are not generally interchangeable.

THREAD DATA CHART INDEX. 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. Ralston Instruments has male BSPP adapters , female BSPP adapters,.

Below is the chart of names and actual measured sizes for BSPT fittings. To accurately identify any BSPP or BSPT fitting, measure from one side of the thread to the other and refer to the chart above.

EG: If the fitting measured 33. Komatsu 30° Flare (JIS Metric) The Komatsu 30° Flare has parallel metric threads and a 30° seat. This connection is widely used on Komatsu equipment. The JIS metric connection is similar to the JIS 3flare, except that the latter has BSPP-like thread dimensions. BSP – BRITISH STANDARD PIPE.

BSP female straight thread form. NPT has a 60° thread where the BSP has a 55° thread. Figure shows a male NPT tightened into a BSPP. It is different from the thread on a regular bolt and nut because the thread has a taper.

These tapered threads are designed to lock together when tightened. The taper rate for all NPT threads is 1⁄(3⁄inch per foot) measured by the change of diameter (of the pipe thread) over distance.