NTDC – End manual pressure-tight closure for hermetic separation of round sections. Resistant to seismic events and radiation, high pressure and high flow velocities. Can be used as a manual hermetic seal for liquids and liquids.
Characteristics
- Dimensions acc. to customers specification and availability of flanges as per EN 1092-1 (round design with round blade section only)
- Made of stainless steel, carbon steel painted, or combination
- Welded construction with axial movement of the blade
- Screw-shifted, maintenance free design
- Used non-metalic materials has minimal content of halogen particles (Halogen-free)
- Manual design only
- Tested to 25 m/s
- Seismic resistant
- Casing tightness and closed-blade tightness (in both directions) 10 l/h.m2 (closed blade leakage value is relation to pressure load)
- Pressure difference 10 kPa (inner pressure against surrounding)
- Radiation resistance min. 10 kGy
- Dekontaminable
- Guaranteed life duration 40 years (under keeping the prescribed producers conditions)