End-suction EN733 centrifugal pumps SES and SKS

Main benefits

Certified for use with drinking water
Reliable operation even in high-pressure applications
Easy maintenance with “back pull-out” design
Heavy-duty construction for continuous operation
Maintenance-free bearings for increased service life
Free position of SKS with horizontal, sloping or vertical axis to meet any installation needs

Main applications

Water supply facilities
Water distribution networks
Irrigation
Heating and cooling systems
General industry applications

SES is a long-coupled pump that can be delivered as a complete skid or as bare shaft pump connected to an existing electric motor.

SKS is a close-coupled (monoblock) pump with electric motor that can be supplied with a frequency converter.

Main design features

Suitable for high-pressure applications with flanges in PN 10 and PN 16
“Back pull-out” design makes it possible to remove hydraulic parts without having to remove the pump body from the plant pipes
Dynamically balanced closed impeller to minimize radial loads and provide smooth rotation of impeller
Suction profile designed to reduce NPSH for trouble-free operation in demanding conditions
Stainless steel shaft designed to withstand the bending-torsion load
Oversized ball bearings provide reduced working noise and a long service life
Large selection of mechanical seals or gland packings (SES) configured according to the requirements of the fluid characteristics and conditions of use

Optional features

Easy replaceable wear rings to protect the pump body and the impeller (standard for larger sizes)
SES: Oil-lubricated bearings with a constant level oil feeder

Key characteristics

Key characteristics SES

	50 Hz	60 Hz
Capacities	up to 2'000 m³/h	up to 2'700 m³/h (11’889 USgpm)
Heads	up to 130 m	up to 120 m (394 ft)
Power	up to 400 kW	up to 400 kW (536 hp)
Temperatures	-15°C / +90°C (+120°C on request)	+5°F / +194°F (+248°F on request)
Maximum speed of rotation	3’000 rpm	3’600 rpm

Key characteristics SKS

	50 Hz	60 Hz
Capacities	up to 825 m³/h	up to 800 m³/h (3’522 USgpm)
Heads	up to 129 m	up to 113 m (371 ft)
Power	up to 90 kW	up to 110 kW (148 hp)
Temperatures	-15°C / +90°C (+120°C on request)	+5°F / +194°F (+248°F on request)
Maximum speed of rotation	3’000 rpm	3’600 rpm

Performance ranges SES

Click to see the performance ranges SES

Performance range - end suction centrifugal pumps SES, 2 poles 50 Hz — Performance range SES, 2 poles - 50 Hz

Performance range - end suction centrifugal pumps SES, 4 poles 50 Hz — Performance range SES, 4 poles - 50 Hz

Performance ranges SKS

Click to see the performance ranges SKS

Performance range - end suction centrifugal pumps SKS, 2 poles 50 Hz — Performance range SKS, 2 poles - 50 Hz

Performance range - end suction centrifugal pumps SKS, 4 poles 50 Hz — Performance range SKS, 4 poles - 50 Hz

Documents

Brochures

End-suction EN733 centrifugal pump SES
pdf

Languages:
EN DE FR SV PL
End-suction EN733 centrifugal pump SKS
pdf

Languages:
EN DE FR SV PL

Installation manuals

User Manual - SES End-Suction Centrifugal Pump (Multi-language)
pdf

Languages:
EN
User Manual - SKS End-Suction Centrifugal Pump (Multi-language)
pdf

Languages:
EN
User and Maintenance Manual - Low Voltage Electric Motors MT and MM (Multi-language)
pdf

Languages:
EN
Motor Specification Manual - Low Voltage Electric Motors MT and MM (Multi-language)
pdf

Languages:
EN

Applications

Municipal clean water supply and distribution
Getting drinking water to all parts of a distribution network involves many challenges along the way. From the water treatment plant through pumping stations and beyond, Sulzer pumps lift and move the drinking water to bring it to its destination at sufficient flow and pressure.
Municipal clean water treatment
When planning new water treatment plants or upgrading existing ones, operating costs are as important as investment costs. Sulzer’s innovative pumps, mixers and compressors combine reliable treatment performance with superior energy efficiency.