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Brand: Sulzer
Sulzer PRE API 610 OH2 Process Pump
Description
An API 610 OH2 process pump family for refining, gas processing and power
The Sulzer PRE and PRELF are single-stage, end-suction, overhung process pumps designed to ISO 13709 (API 610) type OH2. Sulzer lists hydrocarbon processing uses such as refining, gas processing, petrochemicals, polyolefins, synfuels and nitrogenous fertiliser, plus power plant duties such as boosters, boiler and hot water circulation, heat transfer fluid and condensate extraction. The range uses a high-efficiency impeller in several configurations: closed for clean fluids, Barske type for low flow, open or semi-open with wear plate for slurry, and closed with relief vanes for abrasive service.
Technical specifications
| Parameter | Specification |
|---|---|
| Design standard | ISO 13709 / API 610, type OH2 (overhung, end suction, centreline mounted) |
| Capacity | Up to 4,500 m3/h (up to 19,800 USgpm) |
| Head | Up to 320 m (1,050 ft) |
| Pressure | Up to 51 bar (740 psi) |
| Temperature | -90 to 400 degC (-130 to 752 degF) |
| Nozzle rating | 300 lb RF flange standard; 600 lb RF optional |
| Shaft | Extra heavy-duty; deflection limited to under 0.05 mm (0.002 in) at the seal chamber |
| Bearings | 7300 series 40 degree duplex angular contact thrust bearings with machined brass cages; heavy-duty roller radial bearing; tapered roller thrust bearing option for very high suction pressure |
| Bearing housing | Carbon steel with cooling fins; low-noise fan for high ambient or product temperature; water cooling optional |
| Lubrication | Splash oil, ring oil, purge mist or pure mist |
| Seal chamber | API 610 seal chamber for API 682 mechanical seals |
| API 610 material codes | S-4, S-5, S-6, S-8, S-9, C-6, A-8, D-1, D-2 and 317L |
| Alloys available | 625, 825, 254, 20, Hastelloy C276, titanium Gr.3 and Gr.12; others on request |
| PRER / PRETR variants | 16 standard sizes; flows to 2,000 m3/h; PRER 100 bar with Class 600 or 900 flanges; PRETR 200 bar with Class 900 or 1,500 flanges |
Variants and options
PRELF uses a Barske-type impeller for low flow and high head with a wide operating range around best efficiency point. PREK (open impeller, small sizes), PRESF (semi-open impeller with wear plate, large sizes) and PRECF are special designs for slurry, corrosive or abrasive services, with an HVOF coating option on PRECF. Optional inducers help where NPSH available is low, and the case cover can carry a cooling or heating chamber.
What to confirm before ordering
Provide the process fluid, flow, differential head, suction pressure, temperature, specific gravity and vapour pressure, NPSH available, required API 610 material class, seal plan and baseplate or packaging requirement. The brochure lists the range and options rather than a model table, so the exact size is selected against the duty. Other pumps are listed under Pumps, for example the KSB Omega.
Documents and quotation
The attached Sulzer brochure (E10584, 11.2024) covers PRE, PRELF and the PRER/PRETR variants. Send the data sheet or process conditions for a quotation.
Datasheets & Documents
- Brochure Sulzer PRE and PRELF ISO 13709 (API 610) OH2 process pump brochure (E10584, 11.2024) 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 PRE follow?
ISO 13709 (API 610), type OH2 single-stage end-suction process pump.
What temperature range is covered?
From -90 to 400 degC (-130 to 752 degF).
What maximum capacity and head?
Up to 4,500 m3/h and 320 m at 50 Hz.
What is the PRELF variant?
A low-flow, high-head design with a Barske-type impeller for operation close to best efficiency point.
Are high-pressure versions available?
Yes. PRER reaches 100 bar and PRETR 200 bar, with higher flange classes.
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