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Handling
1. Avoid damage when handling, especially to ends of concrete pipes. And never drag or roll pipes over rough ground.
2. Use correct craneage for offloading, utilising canvas/fabric slings with central lift or if ordered, large diameter pipes incorporate lift pins for which the propriety head link and chain set can be used.
3. Joint rings (when supplied loose) must be stored away from sunlight, heat or possible contact with any oils.
4. Stack pipes on even ground on timbers to protect sockets and spigots, making sure the bottom row is securely chocked.
Jointing
For installation details please refer to CPM’s “Concrete Pipes Installation Manual” found in "Technical" section of this Website.
Use of ‘Flexilift’ lifting/jointing chains
Available for DN1200 pipes and above, plus larger
size ovoid pipes
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1. Use the equal length chains C1 and C2 for lifting and placing each pipe in the trench.
2. Connect the longer length chain, C3, to the pipe already laid and place the shorter length chain, C2 on the hook provided.
The pipe can then be jointed without moving the jib of the crane.
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Details of how to engage the universal head-links are shown below.
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