ST& SU Series 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