S4 16/21 T 4OL 4" submersible pump for boreholes and wells - 4,0kW - 3x400V DAB.S4 OL

Product detailed description

S4 16/21 T 4OL 4" submersible pump for boreholes and wells - 4,0kW - 3x400V

Submersible centrifugal pumps for wells and boreholes larger than 4" diameter. The pumps are used for pumping water, pressurizing and supplying water to water distribution systems of small and large buildings, civil and industrial, as well as for irrigation, washing and fire protection systems. Technopolymer impellers with stainless steel suction rings. Pump casing, shaft, motor coupling, integrated suction filter and stainless steel cable cover. Suction body, discharge body and hanging lugs in AISI 304 microlitic stainless steel. Removable integrated check valve in technopolymer or stainless steel (depending on model) Technopolymer impellers designed to ensure a high level of efficiency in accordance with Directive 2009/125/EC (Eco design - ErP) with a MEI >0.4 for the entire range. ACS certified, WRAS certified.

The 4OL motor is a two-pole asynchronous motor whose parts in contact with water are made of AISI 304L stainless steel. Cooling and lubrication of the ball bearings is provided by a special food grade fluid. The reversible stator is housed in an AISI 304L stainless steel casing attached by steel pins to the upper motor support. Fitted with carbon-ceramic mechanical seal.

• Operating range: up to 21.6 m³/h with a displacement of up to 427 m
• Pumped liquid: Clean, free of solids and abrasives, non-viscous, non-aggressive, chemically neutral, properties close to water
• Maximum pump diameter: 99 mm
• Maximum amount of tape: 150 g/m³
• Discharge spout diameter: S4-1, S4-2, S4-3, S4-4, S4-6: 11/4"; S4-8, S4-12, S4-16: 2"
• Circulating Wheel Material: Technoplymer
• Fluid temperature range: 0°C to +40°C
• Maximum draft: 4OL: 250 m
• Maximum number of starts: 20/h
• Rating of protection: IP68
• Insulation class: F
• Single phase voltage: 1x230 V 50 Hz
• Three-phase voltage: 3x230 V 50 Hz - 3x400 V 50 Hz
• Installation: in vertical position. Horizontal installation is possible, it is recommended to install a cooling jacket.