NCV
The Vent-O-Mat NCV range delivers advanced nozzle check valve technology engineered to prevent water hammer, surge, and unnecessary power loss in pipeline systems. Incorrect check valve selection often leads to check valve slam, which can cause severe transients sometimes exceeding the pipeline’s working pressure by up to five times.
Vent-O-Mat NCV valves eliminate these issues by offering a non-slam design with exceptionally low pressure loss, ensuring safe, efficient, and durable operation across industrial, commercial, and municipal applications.
The NCV valve features a ring-shaped disc that acts as the closing member. Its rapid, slam-free closure is achieved using friction-free helical springs and radial guides, enabling smooth and reliable operation even under fluctuating flow conditions.
Compared to traditional centre-shaft (mushroom-type) designs, the annular ring configuration of the Vent-O-Mat NCV provides superior dynamic response and pressure recovery, thanks to the lightweight disc and two-port annulus flow path.
Key
Features
- Non-Slam Closure: Responds rapidly to flow changes, preventing reverse flow and eliminating water hammer.
- Low Pressure Loss: Dual flow paths minimise pressure drop and reduce energy consumption.
- Short Closure Time: Compact stroke length ensures fast, efficient operation.
- Friction-Free Movement: Helical springs and radial guides provide smooth transition between open and closed positions.
- Tight Shut-Off: Metal-to-metal sealing ensures zero leakage under rated conditions.
- Durable Construction: Manufactured from ductile iron with a two-pack epoxy coating for superior corrosion resistance.
Vent-O-Mat Product Range
