Tightening Torques Between Connection Head And Neck Tube; Tightening Torques For Connection To Thermowell; Tightening Torques For Compression Fittings - WIKA TR Série Mode D'emploi

5. Commissioning, operation

5.4.2 Tightening torques between connection head and neck tube

Thread
½ NPT
¾ NPT
M24 x 1.5 with pressure screw

5.4.3 Tightening torques for connection to thermowell

Thread
½ NPT
¾ NPT
G ½ B
G ¾ B
M14 x 1.5
M18 x 1.5
M20 x 1.5
M27 x 2

5.4.4 Tightening torques for compression fittings

Sealing
Stainless steel ferrule
Stainless steel compression ring
PTFE ferrule
1) Turns from finger tight (T.F.F.T)
2) Only for versions with "nipple-union-nipple" neck tube
WIKA operating instructions, models TRxx and TCxx
Tightening torques in Nm
Connection head material
Aluminium
T.F.F.T 2 - 3
T.F.F.T 2 - 3
27
2)
Tightening torques in Nm
T.F.F.T 2 - 3
T.F.F.T 2 - 3
35
40
25 ... 30
35
35 ... 40
40 ... 45
Turns
1 ¼ ... 1 ½
1 ¼ ... 1 ½
1 ¼ ... 1 ½
Stainless steel
T.F.F.T 2 - 3
1)
T.F.F.T 2 - 3
1)
30
1)
1)
Max. pressure in bar
100
100
8
EN
1)
1)
17