The DN600 ductile pipe
construction often USES chain directly into type installation method but happens when the pipe during installation is not easy to in place according to the method.
The causes of this phenomenon are as follows: (
Because of commonly used lubricants for the soap and water, its water grooves or under the condition of high temperature little lubrication, high viscosity oil is generally selected in such a case as a lubricant.
Rubber seal installation is not correct, when the pipe for installation because the larger the friction of the aprons from its original position.
Because of non-standard operation, in the process of transportation and hoisting the socket round, which may lead to a difficult to install.
This kind of situation is relatively rare, for loss of round pipe, need special tools to school round, small head damage effect more cutting machine cut to the damaged parts are available, and lay a groove.
When installation or the pipe stress unevenness is not straight pipe assembly, causing friction resistance increases, thus the pipe is not easy to reach the designated position.
Because the chain directly into type installation methods for installation, pipe rope is not easy in the tubes on either side of the center line, even if the tubes on either side of the force as there is no guarantee that the machine to receive strength evenly in the pipe.
For this kind of circumstance, can be made a steel saddle (
The inner diameter slightly larger than pipe diameter)
, in its mouth in the position of the center line of the pipe welding hook.
Puts the saddle socket end when installation, for installation.
So as to ensure the machine to receive strength evenly in the installation time on both sides of the pipe.
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