ABS Submersible Sewage Pump AFP 1031-2046 SX ABS Pumps

AFP SX is suitable for pumping wastewater and sewage containing corrosive materials in chemical, processing and seawater applications.

Type key Example:
AFP SX Submersible Sewage Pump
10 Discharge outlet DN (cm)
31 Hydraulic number
.1 Impeller
SX Stainless Steel Sewage Pump
Quick Specs:
Flow up to: 220 m³/h
Head, Max: 55m

ABS AFP SX range of High-grade stainless steel pumps from 1.3 to 18.5 kW. AFP SX is suitable for pumping wastewater and sewage containing corrosive materials in chemical, processing and seawater applications.


  • Complete unit is encapsulated with stainless steel. All medium contact parts are made of corrosion-resistant materials.
  • The water-tight, fully flood-proof motor and the pump section form a compact and robust unit.
  • Bi-metallic thermal sensors in the stator which open at 140 °C.
  • Rotor and rotor shaft dynamically balanced, with lubricated for-life, maintenance-free upper and lower bearings.
  • ME3 features an internal closed loop cooling system. Cooling medium: glycol/water mixture.
  • Shaft sealing with viton double mechanical seals, independent of rotation direction.
  • Separation chamber with seal monitor sensor to indicate water leakage through mechanical seal.
  • Hydraulic parts with Contrablock or vortex impellers.
  • Maximum ambient temperature + 40 °C
  • These pumps are available both in standard and explosionproof versions in accordance with international standards EExd II BT4/ATEX.


AFP: Free-circulation cooling by the medium.
AFP(K): Closed loop cooling system with circulation of glycol and water which has no contact with the sewage being pumped. This optimises heat exchange and avoids the danger of blockage of the cooling system with sewage particles.
Dry installation is possible without cooling system, for intermittentuse only and subject to strict limitations.


Water pressure sealed, three phase, squirrel cage induction motors, 4- or 6-pole from 1.3 to 18.5 kW. Voltage: 400 V, 3~, 50 Hz (other voltages on request) Insulation class: F to 155 ºC Protection type: IP 68 Start-up: direct-on-line (DOL) or star-delta


AFP 1031, 1032, 1033. 1533: vortex, open, recessed, four-vane impeller.
AFP 1045, 1542, 2045: Contrablock, open single-vane impeller.
AFP 2046: Contrablock, open double-vane impeller.

Other hydraulic configurations available by request.

Standard and options

Description Standard Option
Max. submergence depth 20 m
Mains voltage Stainless Steel 1.4021
(AISI 420)
230, 500, 695, 230/400,
400/695, 500/866 V
Voltage tolerance ±10%
Cables HO7RN-F EMC shielded cables
Cable length 10 m 20, 30, 40, 50 m
Mechanical seal (medium side) SiC-SiC (Viton)
Mechanical seal (motor side) Carbon-Chrome steel (Viton)
O-rings Viton
Preparation for lifting hoist M1, M2: Cast eyelet. ME3: Lifting hoop
Installation Wet-well
Motor cooling ME3: internal closed loop cooling system
* Star-delta only on motors above 3 kW.

Motor and seal protection

X = Standard O = Option Standard motor EEx motor
Winding Bi-metallic switch
Thermistor (PTC)
Seal Motor Chamber
  Seal chamber


Description Material
Cooling Chamber Stainless steel 1.4408 (AISI 316)
Cooling Jacket Stainless steel 1.4401 (AISI 316)
Motor Housing ME3* Cast iron EN-GJL-250
Motor Housing M1 & M2 Stainless steel 1.4408 (AISI 316)
Motor Shaft Stainless steel 1.4401 (AISI 316)
Volute Stainless steel 1.4408 (AISI 316)
Impeller Stainless steel 1.4460 (AISI 329)
Bottom Plate Stainless steel 1.4408 (AISI 316)
Lifting Hoop Stainless steel 1.4401 (AISI 316)
Pedestal Stainless steel 1.4408 (AISI 316)
Fasteners Stainless steel 1.4401 (AISI 316)
* Enclosed by cooling jacket.


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