HVWS / MVWS System

HVWS (High Velocity Water Spray) and MVWS (Medium Velocity Water Spray) are engineering solutions that deliver a precisely engineered water spray pattern to cool and extinguish fires around high-risk equipment and process areas — transformers, turbines, oil-filled equipment and process plant.

These hazard areas can't rely on hand-held extinguishers alone — they need a fixed, automatic system that reacts the moment heat is detected, without waiting for a person to respond.

We assess the hazard area, design the nozzle and piping layout around the equipment's geometry, integrate the system with heat or flame detection, and size the pump house that feeds it (see our Fire Pump House service) before installing, commissioning and flow-testing the complete system.

Nozzle placement has to account for the equipment's actual geometry, not just its footprint — a transformer's bushings and radiator banks each need their own coverage, and a gap in the spray pattern is a gap in protection exactly where oil-filled equipment is most likely to ignite.

Because these systems protect equipment that's expensive and slow to replace, we flow-test the complete system after installation rather than relying on design calculations alone, confirming the actual spray pattern matches what was engineered on paper.