Flowserve F519 Flanged ANSI Manual de usuario descargar pdf (Pagina 10)

15mm (½")

20mm (¾")

25mm (1")

40mm (1½")

50mm (2")

65 - 75

70 - 80

90 - 100

5 - 7

6 - 10

8 - 12

6 - 9

8 - 12

13 - 18

3 - 5

4 - 6

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.

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Flowserve F519 Flanged ANSI Manual de usuario Pagina 10