ST Horizontal Single Stage Pump

The ST model is a horizontal centrifugal pump with a non-clogging and non-stringing two-channel impeller. It is engineered for dry installation and universal use in the water and wastewater market, suitable for pumping sewage with coarse solid matter and fibrous content without upstream screen. For vertical installation check the STV pump model.

Operation limits

Maximum Pressure up to 4.5 bar (65 psi)

Temperature -10 to 80 °C (14 to 176 °F)

Discharge flanges sizes 12” to 28”

Applications Disposal or wastewater, Raw sewage, Activated sludge, Mixed water, Fecal matter, Rain water

CHARACTERISTICS

Horizontal installation
Single suction
Single stage centrifugal pump
Two-channel pot impeller
Heavy-duty bearing bracket
Radially split
Tangential discharge nozzle

DESIGN FEATURES

Bearing bracket for direct drive by electric motor or diesel engine, via flexible coupling or via V-beltdrive
ST-bloc horizontal pump in compact design, for direct coupling with electric motor
Back shroud blades on the impeller serve as axial thrust compensation and protection against intrusion of particles into the area of the shaft seal

STANDARD CONSTRUCTION MATERIALS

Casing: Cast iron GG-25
Wear Ring: Cast iron GG-25
Impeller: Cast iron GG-25
Shaft sealing: PTFE-coated sealing rings with grease lubrication
Shaft sleeve: G-X20 Cr14
Seal cover: Steel
Pump shaft: Steel C 45
Motor shaft: Steel C 45

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