Drinking water
Wastewater
Industrial plant
Seawater
"Tilting Disk Check Valves with Counter Weight (NVT)"
Size: DN 150 - 1000 mm
Pressure: PN 10- 40 bar
Face to face: DIN EN 558-1 series 14/ISO 5752-14 (DIN3202-F4)
Flanges: DIN EN 1092-2 (DIN 2501)
Product features:
Eccentric disc operation , Body seat ring made of corrosion resistant steel , Disc seat ring is corrosion resistant
steel with seal for reliable sealing , Possibility for installation of weight and lever on both sides. Low weight for
short length of the valves , Maintenance free , Rugged body with disc suitable for fluid flow Disc and shaft are
connected by key , Seat ring rolled into the body.
Application:
These types of valves are used in water supply installations to stop the fluid flow in the opposite direction.
The valve closing speed can be adjusted by changing the weight position along the lever. All of the seals of
the valve bearing can easily be replaced. The standard seal material is NBR for up to 70°C (for gas up to100°C).
For higher temperature and other fluids suitable seal material is available on request.
Corrosion protection:
Body and disc are fully coated with blue electrostatic powder coating with minimum 250 micron thickness.
Aplication fields for
