Vertical Multistage Pumps for Pressure Systems

VAT pumps utilize a multistage centrifugal design, where individual hydraulic stages progressively increase the pressure of the pumped water. They are intended for pressure installations and can also serve as auxiliary pumps in fire pumping units.

The design varies according to the size series. The VAT 127 L and VAT 163 L models use impellers and diffusers made of the thermoplastic polymer Noryl, with a shaft and hydraulic casing made of stainless steel. In the VAT 205 series, the diffusers are made of cast iron, the impellers are made of Noryl material with bronze elements, and the shaft is made of AISI 304 stainless steel. All models are equipped with an easily accessible mechanical seal.

The pumps are driven by an asynchronous electric motor with external cooling, designed for continuous operation. The motors have an IP55 protection class and F insulation class. The specific design is chosen based on the required flow rate, head, and operating conditions.

We Supply VAT Vertical Pumps from SACI Pumps

The VAT series includes three size variants that differ in hydraulic parameters, motor power, and connection dimensions:

• VAT 127 L – flow rate up to 14 m³/h, head 7–131 m, motor power 1.5–4 kW.
• VAT 163 L – flow rate up to 26 m³/h, head 12–154 m, motor power 3–9.3 kW.
• VAT 205 – flow rate up to 45 m³/h, head 23–158 m, motor power 7.5–18.5 kW.

The VAT 127 L pumps have a suction and discharge connection of DN 40, the VAT 163 L series DN 50, and the VAT 205 series DN 65. The specific operating point is determined based on the required flow rate and head using the pump's characteristic curve.