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Brand: Sulzer
Sulzer SES End-Suction EN 733 Centrifugal Pump
Description
A long-coupled EN 733 end-suction pump for water supply and building services
The Sulzer SES is an end-suction centrifugal pump built to or exceeding EN 733 and in conformity with the ErP Directive 2009/125/EC. It is a long-coupled pump that can be delivered as a complete skid with a Sulzer motor or a motor of another brand, or as a bare-shaft pump connected to an existing motor. Sulzer lists water supply facilities, water distribution networks, irrigation, heating and cooling systems and general industry as typical uses, and the pump can be certified for drinking water applications to the ACS standard (other standards on request).
Technical specifications
| Parameter | Specification |
|---|---|
| Standard | EN 733 (met or exceeded); ErP Directive 2009/125/EC |
| Capacity | Up to 2,000 m3/h at 50 Hz; up to 2,700 m3/h (11,889 USgpm) at 60 Hz |
| Head | Up to 130 m at 50 Hz; up to 120 m (394 ft) at 60 Hz |
| Power | Up to 400 kW (536 hp) |
| Temperature | -15 to +90 degC (+120 degC on request); +5 to +194 degF (+248 degF on request) |
| Maximum speed | 3,000 rpm at 50 Hz; 3,600 rpm at 60 Hz |
| Pump body | Cast iron EN-GJL-250 |
| Impeller | Cast iron EN-GJL-250, bronze G-CuSn10 or stainless steel AISI 431 (1.4057); other materials on request |
| Flanges | PN 10 and PN 16 for high-pressure applications |
| Shaft | Stainless steel, designed for bending-torsion load |
| Bearings | Oversized, maintenance-free ball bearings; oil-lubricated with constant-level oiler available as option |
| Wear rings | Replaceable; standard or optional depending on model |
| Shaft sealing | Wide selection of mechanical seals or gland packings |
| Drinking water | ACS certification available; other standards on request |
Why the design suits maintenance teams
The back pull-out design lets the hydraulic part be removed without disturbing the pump body in the pipework, and the shaft seal can be serviced without dismantling the pump. The closed impeller is dynamically balanced with balance holes to reduce axial thrust on the bearings, and the suction profile is designed to reduce NPSH requirements.
What to confirm before ordering
State duty flow and head, liquid and temperature, frequency and pole number, impeller and body material, seal type and whether a bare-shaft pump or a complete skid with motor is wanted. The brochure presents performance ranges rather than individual sizes, so the exact pump size must be selected against the duty point. Related pumps are listed under Pumps, for example the KSB Omega.
Documents and quotation
The attached Sulzer brochure (E10777, 12.2024) gives materials, operating data and performance ranges. Send the duty point and material requirements for a quotation.
Datasheets & Documents
- Brochure Sulzer SES end-suction EN733 centrifugal pump brochure (E10777, 12.2024) Download
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About brand
Pressure sewer systems that discharge through narrow pipe rely on grinder pumps, and the ABS Piranha is the Sulzer answer to that duty. Sulzer has worked in pumps and fluid engineering since 1834 from Winterthur, Switzerland. Seven Star LLC lists the Sulzer ABS Piranha PIR-S21/2 submersible grinder pump and supplies Sulzer pumps and parts to utilities and contractors in Oman.
Sulzer ABS Piranha grinder pump series
The Piranha range is split into the S series, which includes the S21, and the PE series with IE3 motors. In front of the impeller sit a spiral bottom plate, a stationary cutter ring and a shredding rotor that cut cloths and plastic before they reach the hydraulics. The bottom plate is adjustable to take up wear. Versions exist for 50 Hz and 60 Hz, three-phase 400 V and single-phase 230 V supplies.
Ordering Sulzer pumps and spare parts: what we need
Send the full type designation and the serial number from the nameplate, the supply voltage, phase and frequency, the discharge size, and whether an explosion-protected version is required. For cutter or seal parts, the nameplate photo is enough for us to trace the parts list. This applies equally to GCC municipal projects.
Browse Sulzer products by category: Pumps.
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Frequently Asked Questions
Which standard does the Sulzer SES follow?
It meets or exceeds EN 733 and conforms with the ErP Directive 2009/125/EC.
What flow and head can the SES deliver?
Up to 2,000 m3/h and 130 m at 50 Hz; up to 2,700 m3/h and 120 m at 60 Hz.
What is the maximum power?
Up to 400 kW (536 hp).
What impeller materials are available?
Cast iron EN-GJL-250, bronze G-CuSn10 or stainless steel AISI 431 (1.4057), with other materials on request.
Can it be used for drinking water?
Yes, it can be certified to the ACS standard; other standards on request.
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