Glass plant and equipments are supported in a rectangular tubular structure. This tubular structure consisting of galvanized mild steel tubing with cast iron fitting, which are described in this catalogue. This type of structure provides enough flexibility for future modifications and is strong enough to support a glass plant. S.S Tubing and / or powder coated structure parts can also be supplied on request .
| TUBE SIZE |
| Since there are various terminologies in common uses to determine tube size, the following table is given to compare and relate them to the fitting size reference. |
| TUBE INCHES DIAMETER |
NOMINAL BORE mm |
EXTERNAL DIAMETER mm |
| 3/4″ |
19 |
21.5 |
| 1″ |
25 |
32.5 |
| 1 1/4″ |
30 |
41.5 |
| 1 1/2″ |
40 |
48.3 |
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| SUPPORTING COLUMN |
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1. In the design of tubular structure to support glass process plant and pipeline equipment, a number of basic rules should be followed.
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2. The structure should be stiff and should always be braced back to the nearest building or other stiff feature to give lateral support. |
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3. All glass units are built up from a fixed point on which whole weight of the column should be taken. If a total load exceeds the allowable limits, counter balance supports should be used to relieve excessive weight |
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4. All Glass unit and their structures expand at different rate as a result of change in temperature. The unit must, therefore, not be subjected to any vertical restraint above the fixed point. Due to this guide are used which give lateral support without affecting vertical movement of the glass relative to the supporting structure. The distance between guide frames must not exceed 3meters. |
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5. The whole weight of a column must be taken up from the fixed point. This normally presents no problem up to DN 300, but with larger columns it may be necessary to take up some of the weight by means of counterbalance supports. |
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