Hydrant system — TISCO

A pumped ring main held at pressure, with hydrants, monitors and hose stations spaced so every part of the plant can be reached — the water supply every other system relies on.

Scope of work

• Design. Ring main layout, hydrant and monitor spacing, the water demand of the largest risk, and pump and reservoir sizing.
• Procurement. Pipe, isolation valves, hydrant valves, monitors, hose boxes and fittings.
• Installation. The ring main above or below ground — wrapped and coated where buried, with thrust blocks at bends — and the hydrants and monitors along it.
• Testing. Hydrostatic test of the network and flushing before anything is connected.
• Commissioning. Flow and pressure tests at hydrants and monitors, with the pumps running as they would in a fire.
• Handover. As-built drawings, test records and operating and maintenance manuals, with training for the people who will run the system.