NCA - sewage and waste water pumps for domestic and industrial waste water, raw sewage, viscous and corrosive liquids, liquids with fibrous and solid substances, for petrol products as well.

Technical features:

Speed: from 1000 rpm up to 3000 rpm
Discharge nozzle: DN 40 – DN 300
Operating temperature: -10 ºC to 110 ºC
Casing pressure: 10 bar
Capacity – till 1000 m³/hour
Head – till 100 m

Design features:
Horizontal, radially split volute casing, single stage, end suction centrifugal pumps with enclosed or semi-open impeller. 13 basic sizes covering wide range of operational area. Due to the back-pull-out design, the complete bearing assembly including impeller and shaft seal can be dismantled without removing the volute casing (body of the pump) from the piping system. All impellers are dynamically balanced according to ISO 1940 class 6.3. Oil-lubricated or life-time grease lubricated heavy duty roller bearings depending on construction and request. Axial thrust is balanced by back balancing ribs.

Material options:
• Body – cast iron, nodular cast iron, cast steel, cast stainless steel and cast bronze
• Impeller - cast iron, nodular cast iron, cast steel, cast stainless steel and cast bronze
• Shaft – carbon steel and stainless steel
• Shaft sealing - depending on the type of application different mechanical seals and soft packing is applicable.

Impellers of NCA pumps:
• Vortex impeller
• Semi open impeller
• Vortex impeller with radial vanes
• Closed impellers with 1, 2 or 3 vanes
• Wide impeller

Application:
• pumping domestic and industrial raw sewage
• sewage treatment plant
• pumping rain water
• drainage and dewatering plants
• dirty and muddy water
• viscous and fibrous liquids.

Description.pdf

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