Flowserve F519 Flanged ANSI - Manual (Page 10)

15mm (½")
20mm (¾")
25mm (1")
40mm (1½")
50mm (2")
65 - 75
70 - 80
70 - 80
90 - 100
90 - 100
5 - 7
6 - 10
6 - 10
8 - 12
8 - 12
6 - 9
8 - 12
8 - 12
13 - 18
13 - 18
3 - 5
4 - 6
4 - 6
6 - 8
6 - 8
INSERT
TORQUES
(Nm)
SIZE
GLAND NUT TORQUES
(Nm)
GRAPHITE
BUILD
PTFE
BUILD
STEM ASSEM-
BLY TORQUES
(Nm)
32mm (1¼") 80 - 90 8 - 12 13 - 18 6 - 8
10 VALVE ASSEMBLY TORQUES
DEFINITIONS
Insert Torque - The torque required to fully tighten the insert of one piece valves.
Stem Assembly Torques -The torque required to operate the assembled stem before the ball and seats
are fitted to the valve.
Gland Nut Torques -The tightening torques to be applied to the gland nuts to achieve the above
figures. Note: these figures are for tightening plain gland nuts fitted with locking clips and must not be
used for tightening self-locking gland nuts.