Vertical multistage pump Lowara 3SV25F022T

Vertical multistage pump Lowara 3SV25F022T

Application

• Dissolved solids-free water supply for residential, industrial and agricultural sectors.
• Pressure boosting and water supply systems.
• Irrigation systems.
• Washing installations.
• Water treatment stations.
• Delivery of moderately aggressive liquids, demineralized water, water with glycol, etc.
• Circulation of cold and hot water in heating, cooling and air conditioning systems.
• Boiler feeding.
• Food and pharmaceutical industry.

Specifications

PUMP

The SV pump is a non self-priming, vertical, multistage pump equipped with a standard electric motor. The hydraulic part, located between the top cover and the pump housing, is fastened with tie bolts. Pump casings are available in various designs and with various types of connections.

• Feed: up to 160 m3/h.
• Head: up to 330 m.
• Fluid temperature:

- from -30°C to 120°C for 1, 3, 5, 10, 15, 22SV, standard.

- -30°C to 120°C for 125SV, standard.

• Maximum working pressure:

- 1, 3, 5, 10, 15, 22SV with oval flanges: 16 bar (PN16).

- 1, 3, 5, 10, 15, 22SV with round flanges or Victaulic®, Clamp, or DIN 11851: 25 bar (PN 25).

- 33, 46SV: 16, 25, 40 bar (PN 16, PN25, PN40).

- 66, 92, 125SV: 16 or 25 bar (PN 16 or PN 25).

• The equipment has been tested in accordance with ISO 9906 - Annex A.
• Direction of rotation: clockwise, looking at the pump from top to bottom (marked with an arrow on the adapter and on the coupling).

ENGINE

• Squirrel cage squirrel cage motor with closed design and external ventilation.
• Lowara motors up to 22 kW (inclusive), 2-pole are supplied as standard. For higher powers, motors from other manufacturers are used.
• Lowara SM ≥ 0.75kW and PLM three-phase surface motors have efficiency ratings that are classified as Energy Efficiency Class 2 (IE2).
• Degree of protection IP55.
• Insulation class F.
• Characteristics according to EN 60034-1.
• Standard voltage:

- Single phase version: 220-240V, 50Hz.

- Three-phase version: 220-240/380-415 V, 50 Hz for power range up to 3 kW; 380-415/660-690 V, 50 Hz for power range over 3 kW.

MATERIALS

• All materials in contact with the pumped liquid comply with drinking water requirements (certified by WRAS and ACS).

SERIES 1, 3, 5, 10, 15, 22SV FEATURES

• Vertical centrifugal, multistage pump. All metal parts in contact with the pumped liquid are made of stainless steel.
• The following versions are available:

- F: round flanges, suction and discharge connections are in line ("in-line"), AISI 304.

- T: oval flanges, in-line suction and discharge connections, AISI 304.

- R: round flanges, discharge above suction, with 4 adjustable positions, AISI 304.

- N: round flanges, suction and discharge pipes are in line ("in-line"), AISI 316.

- V: Victaulic® couplings, suction and discharge in-line, AISI 316.

- C: Clamp couplings (DIN 32676), in-line suction and discharge connections, AISI 316.

- K: threaded couplings (DIN 11851), suction and discharge connections are in line ("in-line") AISI 316.

• Reduced axial loads allow the use of standard motors available on the market.
• The mechanical seal disc prevents air from accumulating in the critical space prior to the mechanical seal.
• Mechanical seals meet the requirements of EN 12756 (formerly DIN 24960) and ISO 3069 for series 1, 3, 5SV and 10, 15, 22SV (≤ 4 kW).
• The balanced mechanical seal complies with EN 12756 (previously DIN 24960) and ISO 3069 and can be replaced without removing the motor from the pump hydraulics , for series 10, 15 and 22SV (≥ di 5.5 kW).
• The design of the mechanical seal chamber housing prevents air from trapping in the critical space prior to the mechanical seal.
• For Series 10, 15, 22SV a second fill plug is available.
• Versions with round flanges, which can be connected with mating flanges, comply with EN 1092.
• Threaded oval counter-flanges made of stainless steel are supplied as standard for T version pumps.
• Stainless steel round counterflanges are available on request for versions F, R and N.
• Ease of maintenance. No special tools are required to assemble and disassemble the pumps.
• Pumps models F, T, R, N are certified for use with potable water (WRAS and ACS).
• Standard versions for liquid temperatures from -30°C to +120°C.