1
2
3
4
5
6
7
8
9
10
11
1.
Stud
2.
Hex nut
3.
Packing
4.
Tension nut
5.
Bearing
6.
Capscrew
7.
Packing rings
8.
Tension plate
9.
Tube nipple
10. Line assembly water flush
11. Gland
Figure 9: Tension plate - water flush
4.9.1 Tension the enclosing tube
The enclosing tube sags from its own weight as it is installed and must be pulled tight (tensioned) to
make it straight. This section describes two methods you can use to tension the tube:
•
Direct pull method is more precise and is preferred.
•
Wrenching method is given as an alternate.
The correct tension is equal to the weight of the enclosing tube plus 10%. Weights per unit length for
each tube size are given in this table. Multiply by the total length of the tube to determine the total weight.
Table 4: Tube weight
Tube diameter in millimeters | inches Weight in kilograms | pounds per foot of length
101.60 | 4.00
6.80 | 14.98
4.9 Install the tube tension plate
32
Model VCW Installation, Operation, and Maintenance
Summary of Contents for Goulds Pumps VCW
Page 1: ...Installation Operation and Maintenance Model VCW ...
Page 2: ......
