Existing Headwall Installation Method


Step-by-Step Installation Process


  1. Box out the concrete foundation bolt and spigot end where applicable on request.
  2. Mark the centre line of the appeture onto the template, after that mark the frame bolt hole and then drill the hole from where it’s mark.
  3. Then, fix the J bolt to the drilling position and then mount the template into position by aligning the vertical and horizontal leveling.
  4. When the template position is correct, fill the box out pocket with non-shrink grout until it fully cure.
  5. When the grout is fully cure, remove the template and penstock can be installed. Before mounting, a steel packing piece insert to all the bolt. These space allowance is for sealing purposs. When tightening of the bolts and nuts, special care to avoid over tightening of the nuts and best if apply even tighten force.
  6. After penstock has been mounted, check the alignment before sealing the penstock wall gap. Check the door and frame faces with feeler gauge. Double check the bolts and nuts to make sure that the tightening is not over tight causing strain to the penstock frame. Finally, penstock frame gap can be sealed after finish the above checking procedurals.
  7. If all the recommended installation method are following, the penstock should be operate correctly without leakage problems. in international projects in Hong Kong, Jakarta, Pakistan, Vietnam, and the Middle East. In 2005, we achieved ISO 9001:2000 QMS certification from RWTUV, further enhancing our commitment to quality control and systematic management practices.