13
which will cut the o-ring leading to potential leaks. The step drill can be used to chamfer (deburr) the hole on
either side or you can use a file.
Important!
The o-ring goes on the OUTSIDE of the pot. Installing it on the inside of the pot will cause it to
leak!!
Assemble the sensor as shown in Fig. 2, tightening the nut snugly using wrenches, but do not use excessive
force. Do not use pipe tape on the threads.
Installing in an NPT Fitting:
To install the sensor into a female NPT fitting place the o-ring, washer, and adapter bushing onto the sensor
as shown in Fig. 22. Place 4-5 turns of quality Teflon tape (not included) to the external NPT threads of the
bushing. Do not use tape on the sensor threads. Then thread the assembly into the fitting.
Caution!
Once installed, the bushing CANNOT be removed! DO NOT over-tighten! Use a ¾” wrench to
tighten the sensor and thread it into the NPT fitting. When the washer is flush with the fitting as shown in
Fog 23 STOP. It is not necessary to fully torque this joint to seal! Additional bushings may be purchased
through your retailer.
Fig. 20
Bushing
Fig. 21
O-ring and
washer on
outside of pot!
Fig. 22
Fig. 23