I would like to apply flange joint of steel pipes for force main construction (sewerage system). The dimension of pipe is 800 mm (AWWA C200 standard, flanges are dia. 800 mm of JIS 10K standard). The pipes has pressure of 10 bar only.
What I would like to know are :
1. Is it necessary to place...
I would like to apply flange joint of steel pipes for force main construction (sewerage system). The dimension of pipe is 800 mm (AWWA C200 standard, flanges are dia. 800 mm of JIS 10K standard). The pipes has pressure of 10 bar only.
What I would like to know are :
1. Is it necessary to place...
I would like to install flange joint of spiral steel pipe dia. 32" (force main construction for sewerage system).
The flange is JIS 10 K standard, while the pipe has pressure of 10 bar only. What I want to know for jointing the flanges are :
1. Is it necessary to place 2 washers behindboth...
I would like to apply coal tar enamel for field coating. The type of pipe is spiral steel pipe AWWA C200. I have few questions as listed below:
1. Do I have to use a primer prior to application of coal tar enamel?
2. Is it necessary to apply CTE as thick as the coating which has been done by...