SOR TA Nuclear Qualified Pressure Switch User Manual
Page 3
Form 654 (04.13) ©SOR Inc.
3/4
N6 Housing
TA Housing
Mounting Hardware Fasteners per SOR Test Report 9058-102 consist of three standard
grade 1/4-inch U bolts (not supplied).
Maintenance Replace cover o-rings (SOR P/N 8923-206 and 8923-207) whenever cover
is removed or minimum of once every 5 years, whichever comes first. Unscrew the cover.
Remove the old o-rings. Place new o-rings in groove of cover. Lubricate o-rings with light
film of Krytox 240AC grease (or equivalent fluorinated grease). Tighten cover until the
flange of the cover makes contact with the housing.
Cover
U-Bolts
3/4” NPT(F)
Conduit Connection
Process Connection (Pressure Port)
Body
1/4” NPT(F)
Vent Connection
Mounting Hardware Fasteners per SOR Test Report 9058-102 consist of two 1/4-20,
Grade 5 screws (not supplied). Torque screws to 70 to 85 in-lbs.
Maintenance Replace cover gasket (SOR P/N 8923-180) whenever cover is removed or
minimum of once every 5 years, whichever comes first. Remove the four cover screws.
Remove the old gasket. Place new gasket between housing and cover. Line up holes in
cover, gasket and housing. Insert the 4 screws and torque each to 7 to 10 in-lbs.
Cover Screws
1/8” NPT(F)
Vent Connection
Body
Process Connection
(Pressure Port)
Mounting
Holes
3/4” NPT(F)
Conduit
Connection