NTDC

NTDC

Pressure-tight valve

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.

Properties

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)

Specifications

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.