KSB ECOLINE GT 40, Руководство по эксплуатации

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7 Servicing/Maintenance
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ECOLINE GT 40
7367.8/06-EN
3. If leakage occurs, tighten the nuts at the gland follower until leakage stops.
4. Reduce the pressure for seat tightness testing.
7.2.4.4 Fitting the bonnet/cover gasket
ü
The spare parts required are available.
ü All dismantled parts have been cleaned and checked for wear.
ü Any damaged or worn parts have been replaced by original spare parts.
1. Insert a new joint ring 411 into the groove.
2. Fit the bonnet with the valve trim.
3. Tighten bonnet/cover nuts 920.3 crosswise to the specified tightening torque
(
ð
Section 7.3, Page 28) .
7.3 Tightening torques
Table 7: Bolt tightening torques [kg/m]
Metric size Material
Inch Metric B7/B16/&L7 B8/B8M
5-16 - 18 UNC M8 x 1,25 2,0 2,0
3/8 - 16 UNC M10 x 1,5 2,8 2,8
7/16 - 14 UNC - 4,2 4,2
1/2 - 13 UNC M12 x 1,75 7,0 6,3
9/16 - 12 UNC - 9,7 8,6
5/8 - 11 UNC M16 x 2 13,2 11,8
3/4 - 10 UNC M20 x 2,5 23,6 20,8
7/8 - 9 UNC M22 x 2,5 37,5 33,3
1 - 8 UNC M24 x 3 56,8 49,9
1 - 1/8 - 8 UN M30 x 3,5 83,2 74,2
1 - 1/4 - 7 UN M33 x 3,5 117,2 104,0
1 - 3/8 - 8 UN M36 x 4 159,4 141,4
1 - 1/2 - 8 UN M39 x 4 210,6 187,1
1 - 5/8 - 8 UN M42 x 4,5 270,9 241,1
1 - 3/4 - 8 UN M45 x 4,5 342,9 304,8
1 - 7/8 - 8 UN M48 x 5 425,1 379,0
2 - 8 UN M50 x 1,5 521,7 463,5
2 - 1/8 - 8 UN - 623,5 560,5
2 - 1/4 - 8 UN M56 x 5,5 753,7 669,9
2 - 1/2 - 8 UN M64 x 5 1045,4 929,7