BSPP thread and NPT
BSPP thread and NPT
(OP)
Hello guys,
I am buying a compressor from the UK and bringing it down to the US for some work.
The compressor comes with several thermowells for the temperature switches, but I have to substitute them with Temp Transmitters. I have to buy the RTD's for the transmitters.
The thread on the thermowell is 1/2" BSPP, where it bolts into the compressor housing. Is this compatible with 1/2" NPT? the pressures we are talking about is around 500psi on the thermowell.
I am buying a compressor from the UK and bringing it down to the US for some work.
The compressor comes with several thermowells for the temperature switches, but I have to substitute them with Temp Transmitters. I have to buy the RTD's for the transmitters.
The thread on the thermowell is 1/2" BSPP, where it bolts into the compressor housing. Is this compatible with 1/2" NPT? the pressures we are talking about is around 500psi on the thermowell.





RE: BSPP thread and NPT
BSPP is not tapered, NPT is -- in addition to slight differences in thread forms and pitch.
You can make an adapter perhaps, or find a 1/2" NPT to 1/2" BSPP adapter -- just might need to make your probe a bit longer to get to the bottom of the thermowell.
OR, find a 1/2" BSPP sensor...
Let's see if anyone else knows a good and quick solution.
Good on ya,
Goober Dave
RE: BSPP thread and NPT
There are groups which sell BSP/NPT adapters, which is probably your best bet. Then you instruments stay standard and your odd ball fittings can just stay on the compressor.
RE: BSPP thread and NPT
RE: BSPP thread and NPT
Why not buy the correct thermowells with the RTDs?