GE Masoneilan 48000 Series, Инструкция по эксплуатации

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Assembly Torque requirements
Valve size 2” 3” 4” 6”
Seat ring retainer thread 3.00”-16UN 3.625”-16UN 5.0”-16UN 6.5”-16UN
Torque daN-m 150 250 560 1270
ft-lbs 1110 1840 4130 9360
Figure 8 – Seat ring Tightening Torques
Body Body stud Nuts Torque
Valve size (in) Thread size number daN-m ft-lbs
2 1.5”-8 UN 6 212 1560
3 1.625”-8 UN 8 261 1920
4 1.875”-8 UN 8 372 2740
6 1.75”-8 UN 12 315 2320
Notes: 1. Do not exceed Maximum Torque values listed.
2. Tighten in increments until required torque levels are reached.
3. Reject assembly if metal-to-metal contact is not achieved after reaching Maximum Torque.
1 1
8 5
6
3
4 3
4 5
6
7
2 2
Figure 9 - Bolting Torques and Tightening Sequence