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Submersible sewage drainage pump Unilift AP35B

Submersible sewage drainage pump Unilift AP35B
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Submersible sewage drainage pump Unilift AP35B
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618.66€
Ex Tax: 618.66€
  • Stock: In Stock
  • Brand: Grundfos
  • Model: 96468356
  • Weight: 18.00кг
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Grundfos UNILIFT AP35B – drainage pump with free passage 35 mm

Grundfos UNILIFT AP35B is a single-stage submersible pump from the AP Basic series, designed for pumping wastewater with a free passage of 35 mm. The pump is suitable for drainage, grey water, treated water from grease filters and applications with larger particles. It is approved according to EN 12050-1 for use in lifting stations containing faecal matter.

35 mm free passage Processes particles up to 35 mm without clogging.
EN 12050-1 Approved for faecal matter stations.
Vortex impeller Reduces the risk of fiber clogging.

Main advantages of UNILIFT AP35B

  • 35 mm free passage for larger particles and fibers.
  • Vortex impeller for minimal risk of clogging.
  • Approved according to EN 12050-1 for lifting stations with faecal matter.
  • All hydraulic parts made of stainless steel for long life.
  • Cooling jacket for continuous operation in partial immersion.
  • Highly reliable mechanical shaft seal with oil chamber.
  • Glass-sealed cable entry to prevent water ingress.
  • Easy access for replacing consumables – cable, float, bearing seal, impeller and rotor.

Applications

  • Drainage and drainage of rainwater from roofs, parking lots and other surfaces.
  • Pumping grey water from washing machines, sinks, showers and bathrooms.
  • Treated water from grease filters in commercial kitchens and restaurants.
  • Domestic wastewater from septic and sludge systems.
  • Drainage of viaducts, underpasses and other infrastructure sites.
  • Liquids containing fibers from light industry, laundry and textile applications.
  • Installation in lifting stations with auto-coupling and guide rails.

Suitable liquids

  • Clean, non-aggressive water.
  • Slightly polluted grey wastewater.
  • Drainage and rainwater with small impurities.
  • Treated water from grease filters.
  • Liquids containing fibers and larger particles up to 35 mm.
The pump is not suitable for liquids containing long fibers, flammable liquids such as oil or gasoline, or aggressive chemicals.

General technical characteristics

Characteristics Value
Pump type Single-stage submersible drainage pump
Working fluid Clean, non-aggressive water and grey waste water
Maximum particle size 35mm
Liquid temperature range 0–40 °C (with short periods up to 70 °C)
pH range 4–10
Degree of protection IP68
Insulation class F (155 °C)
Maximum immersion depth 10 m
Output connection Rp 1½" (AP35.40) or Rp 2" (AP35.50)
Cooling From the pumped liquid via a cooling jacket and internal riser pipe
Engine protection Blockage protection and thermal protection included
Impeller type Vortex, stainless steel, with L-shaped blades and protective cap
Sealing gasket Mechanical seal combination with bellows and lip seal with 60 ml oil

Installation

UNILIFT AP35B is suitable for permanent and portable installations. The pump can be installed vertically, inclined or horizontally, with the outlet opening at the highest point. It is available with a float for automatic start/stop or without a float for manual control via an external controller. It is suitable for installation on auto-coupling with guide rails in pumping stations.

When installed with a float, the level difference between start and stop is adjusted by changing the free length of the cable between the float and the pump handle. The free length should be between 100 mm and 250 mm.

Operating modes

  • Automatic mode: With float for automatic start/stop between two liquid levels.
  • Manual mode: Without float, controlled by external controller or manual on/off.
  • Single-phase pumps: With built-in thermal protection and capacitor.
  • Three-phase pumps: Without built-in protection, require an external controller with motor protection.
The UNILIFT AP35B is approved to EN 12050-1 for use in lifting stations containing faecal matter. This makes it suitable for applications where a higher level of safety and reliability approval is required.

Component materials

The UNILIFT AP35B is constructed entirely of stainless steel for all hydraulic parts, which ensures exceptional strength, corrosion resistance and long service life.

Component Material Standard
Pump housing Stainless steel 1.4301 / AISI 304
Lifting pipe Stainless steel 1.4301 / AISI 304
Impeller Stainless steel 1.4301 / AISI 304
Pump shirt Stainless steel 1.4401 / AISI 316
Shaft (wet part) Stainless steel 1.4301 / AISI 304
Camps Heavy-duty, pre-lubricated ball bearings -
O-rings NBR rubber -
Screws Stainless steel 1.4301 / AISI 304
Oil Shell Ondina X420 -
Cable Neoprene (H07RN8-F) -

Advantages of materials

  • AISI 304 stainless steel: High corrosion resistance and strength for all main hydraulic components.
  • Stainless steel AISI 316: The pump jacket is made of higher grade stainless steel for additional protection against corrosion.
  • Vortex impeller: Reduces the risk of fiber clogging and provides a free passage of 35 mm.
  • Mechanical shaft seal with oil chamber: Protects seals and motor from water ingress and extends service life.
  • Heavy-duty bearings: Pre-lubricated and sealed for long life and quiet operation.
  • Neoprene cable: High quality, waterproof cable, suitable for submersible work.
All materials that come into contact with water are approved for use with clean and slightly contaminated water. For aggressive environments, consultation with Grundfos is recommended for a suitable version.

Approvals and certificates

Grundfos UNILIFT AP35B has the necessary safety and quality approvals and certificates that guarantee reliable operation in domestic, commercial and industrial applications, including lifting stations with fecal matter.

Major approvals

  • CE marking: The pump complies with the requirements of European directives for safety, health and environmental protection.
  • EN 12050-1: Approval for use in lifting stations containing faecal matter. This approval ensures that the pump is suitable for applications with higher safety and reliability requirements.
  • EN 60335-2-41: Safety standard for submersible sewage pumps.
  • ISO 9906: Standard for hydraulic performance of pumps.

Why are approvals important?

  • Health and Safety: Approvals ensure that the pump meets strict safety and reliability standards.
  • Regulatory compliance: The use of approved products is mandatory in many countries for installations related to wastewater disposal, especially in faecal matter plants.
  • Trust and quality: Certified products have passed rigorous testing and meet high quality standards.
  • EN 12050-1: This approval is particularly important for applications where the pump will be working with fecal matter and a higher level of reliability and safety is required.
Before installation, check whether the specific product number has the necessary approvals for your country or region. If additional certifications are required, contact Grundfos or your distributor.

UNILIFT AP35B model comparison

UNILIFT AP35B is available in several versions according to the outlet diameter (40 or 50), power (06, 08), voltage (1-phase 230 V or 3-phase 400 V) and control (automatic with float or manual). The main models are AP35.40.06 and AP35.40.08.

Characteristics AP35.40.06 AP35.40.08
Output diameter Rp 1½" Rp 1½"
Power P2 (50 Hz) 0.6kW 0.7kW
Power P1 (50 Hz) 0.9kW 1.1–1.2kW
Rated current (1×230 V) 4.0A 5.5A
Starting current (1×230 V) 17.3A 23.0 A
Rotation speed (50 Hz) 2810–2830 rpm 2795–2820 rpm
Maximum pressure ~9.5m ~12m
Maximum flow rate ~16 m³/h ~20 m³/h
Weight (net) 13.0–13.3 kg 13.5–13.9 kg
Voltage 1×230 V or 3×400 V 1×230 V or 3×400 V
Management Automatic (A) or manual Automatic (A) or manual
Free passage 35mm 35mm
Approval EN 12050-1 EN 12050-1

Which model to choose?

  • AP35.40.06: Suitable for small and medium installations with moderate head (up to 9.5 m) and flow rate. Ideal for pumping grey water, drainage water and treated water from grease filters in small commercial and domestic applications.
  • AP35.40.08: More powerful model with up to 12 m head and higher flow rate. Suitable for more demanding applications where higher head or higher flow rate is required, such as larger pumping stations, industrial applications and sites with higher requirements.
All models have a free passage of 35 mm, a temperature range of 0–40 °C (with short periods up to 70 °C), pH 4–10 and a protection rating of IP68. The choice between them depends mainly on the required head, flow rate and power for the specific installation.

The technical specifications are in accordance with the provided Grundfos UNILIFT AP35B technical catalogue. Please check the specific product number, voltage, cable length, control type (automatic or manual) and number of phases before ordering.

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