Vertical multistage pumps

Vertical multistage pumps from SACI pumps: XV-F up to 180 m³/h, quiet V-NOX, VAT jockey pumps, and chemically resistant XVN-F (AISI 316). Delivery throughout the Czech Republic.

m³/h
m
°C

These values are approximate and may be influenced by other factors. We will be happy to consult with our expert to make sure you make the right choice.

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Vertical Multistage Pumps – High Head, Compact Design

SACI pumps’ vertical multistage centrifugal pumps feature an in-line design, with the suction and discharge ports on the same axis, for direct installation in the piping. Multiple hydraulic stages on a common shaft deliver high head in a compact footprint.

XV-F Series – Industrial

Ten sizes with DN 32–125 DIN flanges, flow rates up to 180 m³/h, head up to 330 m, and motors rated 1,1–75 kW. Complete hydraulic assembly made of AISI 304, with a SiC/EPDM cartridge mechanical seal. Fluid temperature -15 °C to +120 °C, flange ratings PN 16 / 25 / 40. Non-self-priming, with an air-cooled asynchronous motor, efficiency class IE3. For pressure boosting stations, fire-fighting systems, boiler rooms, and major infrastructure projects.

V-NOX Series – Quiet

Two sizes with 1 1/2" / 1 1/4" threaded connections, flow rates up to 21 m³/h, head up to 124 m, and motors rated 0,9–4 kW. Impellers and casing made of AISI 304, with glass-fibre-reinforced technopolymer diffusers. Extremely quiet operation for apartment buildings, hotels, and hospitals. Counter-flanges included. Fluid temperature up to 45 °C.

VAT Series – Compact and Jockey

Three sizes (VAT 127 L, VAT 163 L, VAT 205) with 1 1/2" and 2 1/2" threaded connections, flow rates up to 14 m³/h, and head up to 131 m. Impellers and diffusers made of Noryl (GFN-2), with a shaft and outer casing made of AISI 304. Quiet operation, ideal as a jockey pump in fire-fighting systems or for smaller pressure boosting stations. Fluid temperature up to 45 °C.

XVN-F Series – Chemical-Resistant (AISI 316)

Four sizes with DN 25–40 DIN flanges, flow rates up to 14 m³/h, head up to 250 m, and motors rated 0,37–11 kW. Complete hydraulic assembly made of AISI 316 – impellers, diffusers, shaft, outer casing, and suction base. For aggressive fluids, including reverse osmosis, salt water, dilute acids, and industrial processes involving chemically demanding liquids. Fluid temperature -15°C to +120 °C, operating pressure up to 25 bar.

Which series should you choose?

XV-FV-NOXVATXVN-F
Segmentindustry, infrastructureapartment buildings, commercial buildingsjockey pumps, smaller booster setschemical industry, aggressive water
Flow rateup to 180 m³/hup to 21 m³/hup to 14 m³/hup to 14 m³/h
Headup to 330 mup to 124 mup to 131 mup to 250 m
Motors1.1–75 kW0.9–4 kW1.5–4 kW0.37–11 kW
ConnectionDN 32–125 flanges1 1/2\" thread1 1/2\"–2 1/2\" threadDN 25–40 flanges
MaterialAISI 304AISI 304 + NorylNoryl + AISI 304AISI 316
Temperature-15 to +120 °Cup to 45 °Cup to 45 °C-15 to +120 °C
Quiet operationstandardextremely quietquietstandard

XV-F – choose this series if you need a flow rate above 21 m³/h, a temperature above 45 °C, a flanged connection, or pressure above 25 bar.

V-NOX – quiet operation in a residential building is the priority, and a flow rate of up to 21 m³/h is sufficient.

VAT – a jockey pump in a fire protection system, a small booster set, or an auxiliary pump.

XVN-F – the fluid is aggressive (salt water, acids, reverse osmosis), and you need AISI 316.

Applications

  • Booster sets – apartment buildings (V-NOX, VAT), industrial sites and high-rise buildings (XV-F)
  • Fire protection and firefighting systems – main pump (XV-F), jockey pump (VAT)
  • Boiler feed – XV-F (temperature up to 120 °C), XVN-F for aggressive condensate
  • Industrial cooling circuits – XV-F for high flow rates and pressures
  • CIP/SIP stations – XV-F (AISI 316 available on request) or XVN-F (AISI 316 as standard)
  • Reverse osmosis and water treatment plants – XVN-F (AISI 316 resistance to chlorides)
  • Drinking water – XV-F, V-NOX, VAT (AISI 304, according to ČSN EN 16421)

What is the difference between XV-F and V-NOX?

XV-F is an industrial series with DIN flanges, a flow rate of up to 180 m³/h, and a fluid temperature of up to 120 °C. V-NOX is a quiet series with threaded connections, a flow rate of up to 21 m³/h, and a temperature of up to 45 °C. Choose V-NOX for residential buildings and XV-F for industry and larger installations.

When do I need XVN-F instead of XV-F?

XVN-F has hydraulics made entirely of AISI 316, which withstands chlorides, dilute acids, and salt water. Choose it for reverse osmosis, seawater treatment plants, the chemical industry, and processes involving aggressive fluids. XV-F with AISI 304 is sufficient for drinking water and standard industrial fluids.

What is a jockey pump, and why choose VAT for it?

A jockey pump maintains pressure in the fire protection piping when the main pump is not running. It needs to be reliable, compact, and quiet. With motors rated at 1.5–4 kW and a head of up to 131 m, VAT is ideally suited to this role—it maintains system pressure while using minimal energy.

Are 230 V versions available?

Yes. For XV-F, the XV-F 5 and XV-F 10 models. For V-NOX, versions marked M/T. For VAT, the 127 L and 163 L versions. For XVN-F, all sizes (1, 3, 5). Higher power ratings are available exclusively with a three-phase 400 V power supply.

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