As the principal fabricator for Hydro International, fabrication specialist Arc Energy Resources has secured a further contract to manufacture their Hydro Vortex Drop-Shaft systems.

As principal fabricator of Hydro-Brake Flow Controls for Hydro International, fabrication specialist Arc Energy Resources has secured a further contract to manufacture their Hydro Vortex Drop-Shaft systems. The Hydro Vortex Drop-Shaft is a specialised unit used to quietly and safely drop water/sewage from heights. Its principle function is to dissipate the energy generated when water/sewage falls to the lower levels, preventing any noise, vibration or damage to the network infrastructure.

Commenting for Arc Energy, project manager Neil Cook says that with all stainless steel fabrication great care must be taken to avoid distortion and maintain the integrity of the material.

He explains that this is why the company used one of its new dedicated fabrication units for this contract, and staff that are skilled in working with the specialised materials.

Hydro Vortex Drop-Shafts are self-activating with no moving parts and Arc Energy is fabricating four lengths - one 25m, one 15m and two 3.5m - in stainless steel, complete with mounting brackets and special switch pipes designed to control the intake of air.

They will be installed in major sewer upgrade projects in Oldham and Bonnyrigg in Scotland.

Wayne Jones, an engineer for Hydro International says: 'Delivery was an important factor on this contract and Arc Energy was able to meet our tight deadlines.

The company's extensive experience of fabricating other tubular components as well as our Hydro-Brake Flow Control units meant that lead times for the Hydro Vortex Drop-Shafts could be significantly reduced.'