ST& SU Series waste water pumps are designed for economical & trouble-free operation in handling solids-laden liquids and slurries. Pumps feature a large volute design which allows them to re-prime automatically in a completely open system without the need of suction or discharge check valves. And this is workable with the pump only partially filled with liquid and completely dry suction line.

Pumps will be able to handle up to 75mm spherical solids, depending on pump models. In case that pump shaft or bearings need service or repair, the entire rotating assembly can be removed without disturbing pump casing or pipelines.
Rotating assembly is sealed with an O-Ring, allowing for external adjustments of clearance.

Material:  Cast Iron,  ADI,  CD4MCU,  316 SS,  Alloy 20,  C276.

Data Sheet:

Type: ST-2

Inlet, outlet:  2"

Max. throught solids: 44.45mm

Head: 5m ~ 36m

Flow:10m³/h ~40m³/h

Speed:1150rpm ~2900rpm

Repriming lifts: 7.3m ~7.6m

Type: ST-3

Inlet, outlet:  3"

Max. throught solids: 63.5mm

Head: 4m ~ 35m

Flow:10m³/h ~100m³/h

Speed:650rpm~ 2150rpm

Repriming lifts: 1.5m~ 7.6m

Type: ST-4

Inlet, outlet:  4"

Max. throught solids: 76.2mm

Head: 4m ~ 35m

Flow:20m³/h ~150m³/h

Speed:650rpm~ 1950rpm

Repriming lifts: 1.5m~ 7.6m

Type: ST-6

Inlet, outlet:  6"

Max. throught solids: 76.2mm

Head: 4m ~ 30m

Flow:20m³/h ~300m³/h

Speed:650rpm~ 1550rpm

Repriming lifts: 2.4m~ 7.6m

Type: ST-8

Inlet, outlet:  8"

Max. throught solids: 76.2mm

Head: 5m ~ 30m

Flow:50m³/h ~550m³/h

Speed:650rpm~ 1350rpm

Repriming lifts: 2.7m~ 7.0m

Type: ST-10

Inlet, outlet:  10"

Max. throught solids: 76.2mm

Head: 5m ~ 35m

Flow:100m³/h~ 700m³/h

Speed:650rpm ~1450rpm

Repriming lifts: 2.1m~ 6.7m

Type: ST-12

Inlet, outlet: 12"

Max. throught solids: 76.2mm

Head: 5m ~ 40m

Flow:150m³/h ~1100m³/h

Speed:650rpm ~1250rpm

Repriming lifts: 1.6m~ 4.9m

Type: SU-3

Inlet, outlet: 3"

Max. throught solids: 20.63mm

Head: 10m ~ 60m

Flow:10m³/h ~80m³/h

Speed:850rpm~ 2150rpm

Repriming lifts: 2.3m ~7.6m

Type: SU-4

Inlet, outlet: 4"

Max. throught solids: 28.57mm

Head: 10m ~ 60m

Flow:20m³/h ~140m³/h

Speed:850rpm~ 2150rpm

Repriming lifts: 2.4m~ 5.2m

Type: SU-6

Inlet, outlet: 6"

Max. throught solids: 31.75mm

Head: 10m ~ 60m

Flow:40m³/h ~280m³/h

Speed:850rpm~ 1950rpm

Repriming lifts: 2.4m~ 4.5m