Search results
Results from the WOW.Com Content Network
The GHT and BSP standards are not compatible, and attempting to connect a GHT hose to a BSP fitting, or vice versa, will damage the threads. The connector threads are not tapered, and do not seal against leaks. Instead, a pliable rubber or plastic gasket (often ambiguously called a "garden hose washer") seals the connection against leakage.
The taper rate for all NPT threads is 1 inch of diameter in 16 inches of length (3 ⁄ 4 inch per foot or 62.5 millimeters per meter) measured by the change of diameter (of the pipe thread) over distance of thread. The half-angle (between the taper surface and the axis of the pipe) is arctan(1 ⁄ 32) ≈ 1.7899° ≈ 1° 47′.
Piping or tubing is usually inserted into fittings to make connections. Connectors are assigned a gender, abbreviated M or F. An example of this is a "3 ⁄ 4-inch female adapter NPT", which would have a corresponding male connection of the same size and thread standard (in this case also NPT).
British Standard Pipe (BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external thread with an internal (female) thread.
Cable glands are mostly used for cables with diameters between 1 mm and 75 mm. [3] Cable glands are commonly defined as mechanical cable entry devices. [4] They are used throughout a number of industries in conjunction with cable and wiring used in electrical instrumentation and automation systems.
A chase nipple is a short pipe fitting, which creates a path for wires between two electrical boxes. A chase nipple has male threads on one end only. The other end is a hexagon. The chase nipple passes through the knockouts of two boxes, and is secured by an internally threaded ring called a lock nut. [1] [2]
Grounding (earthing) of distribution circuits is a notable difference in practice between wiring systems of the United States and those of other regions. Since the early 1960s, wiring in new construction has required a separate grounding conductor used to bond (electrically connect) all normally non-current carrying parts of an electrical ...
Multicore cables can be used for analog and digital signals as well as power distribution. They are often used to simplify the physical setup of a system and provide a neater connection between two pieces of equipment. [9] For example, in sound reinforcement, a multicore cable is often used to connect all the microphones on stage to the mixing ...