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NB/AP In-Tank Valve
Brand: PROTEGOIn-tank valves type NB/AP from Protego are applied to tank seal draining nozzles to avoid leakage during hazardous situations (Pipe bursting).
For this reason the devices are also called "Quick Shut off Bottom Drain Valves".
They are mainly used for low temperature liquefied medium [Down to -196° C (-321° F)] storage tanks.
The device essentially consists of the bottom plate, which has to be welded onto the vessel bottom, a nozzle, which is to be welded to the emptying line and the flanged fast acting valve with valve piston and release valve cone and the complete pneumatic actuating device, which is mounted to the roof of the vessel.
Through lapped metallic valve pallet and release vent cone the required leak tightness is achieved.
Specifications
Brand
Approvals & Certifications
- EN 1092-1
- ISO 16016
Bushing Material
- Guide Bushing: Copper
Cap Material
- Protective Cap: Stainless Steel
Enclosure, Body Material
- Stainless Steel
Flange Size - 10” (DN 250)
- 10” (DN 250) - PN 40
Flange Size - 3” (DN 80)
- 3” (DN 80) - PN 40
Flange Size - 6” (DN 150)
- 6” (DN 150) - PN 40
Flange Size - 8” (DN 200)
- 8” (DN 200) - PN 40
Gasket Material
- PTFE
Materials of Construction
- Actuator Rope: Stainless Steel
- Pneumatic Cylinder: Aluminum
Process Temperature
- -196° C (-321° F)
Spindle Material
- Actuator Spindle: Stainless Steel