Most pressure gauges around the world have either an NPT or G (metric) connection for insertion into processes.

The terminology for the use of G and R originated from Germany ( G for gas, as it was originally designed for use on gas pipes; R for rohr, meaning pipe. DIN3852-E type pressure fittings include a channelled profile in the sealing face for accepting an elastomer seal. Jointing threads These are pipe threads where pressure-tightness is made through the mating of two threads together.S. and Canada – the pressure gauge will very likely have the straight threads of a British Standard Pipe Parallel (BSPP) connector, denoted by the letter G*.

If the pressure is not going to exceed 16 bar we would suggest a John Guest PM010612E 6MM x 1/4″ straight threaded to tube adapter fitting. 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 ( male) thread with an internal (female) thread. The push-in fitting comes with a sealing ring on one side and threads on the other side, so it's quick and easy to connect and doesn't require any special tools. Since finishing my business apprenticeship with WIKA Germany in 1985, I have worked in many different positions and areas. Inch BSP - Bathroom basin taps and kitchen sink taps, radiator connections, shower hoses, old outside tap outlets, toilet cistern fill / float valves.Have you ever looked at a pressure gauge in a pipe assembly and wondered which connection type it has? Where can we source a pressure DP transmitter flanged with a flush diaphragm for liquid level measurement with an output over 0-200 inH2O?

As sealing of the connection takes place on the washer and not on the thread itself, no sealing compound or PTFE tape is required. Even though BSP is now based on metric measurements, this system’s names still reflect their imperial origins.Due to the spiral leak path, however, Teflon® tape (PTFE) or a sealing compound is required to create a good seal. Inch BSP - Outlet thread on 3/4 inch outside tap (we have a 7/8 inch BSP brass garden hose tap connector).