
EB 2171 EN
35
Servicing
8.2 Lubricants and sealants
SAMSON's After-sales Service can support
you concerning lubricants and sealants
approved by SAMSON.
Note
8.4 Tools
Tool
Valve size
Order no.
Plug wrench
G ½ to G 1 · DN 15 to 25
½ NPT to 1 NPT · NPS ½ to 1
1280-3001
DN 32 to 50
NPS 1¼ to 2
1280-3007
Seat wrench
G ½ to G 1 · DN 15 to 25
½ NPT to 1 NPT · NPS ½ to 1
1280-3012
DN 32 to 50
NPS 1¼ to 2
1280-3013
8.3 Tightening torques
Component
Valve size
Tightening torque in Nm
Seat (2)
G ½ to G 1 · DN 15 to 25
½ NPT to 1 NPT · NPS ½ to 1
45
DN 32 to 50
NPS 1¼ to 2
110
Plug (3)
G ½ to G 1 · DN 15 to 25
½ NPT to 1 NPT · NPS ½ to 1
80
Plug nipple (3.1)
DN 32 to 50
NPS 1¼ to 2
110
Coupling nut (15)
All
20