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RUHRPUMPEN
Selection guide

Selection guide

Product catalog summary

Overview
Ruhrpumpen is a leader in pumping technology, offering a diverse range of energy-efficient pump designs tailored to meet specific customer needs across various industries.

Single Stage Horizontal Centrifugal Pumps

Characteristics: Radially split casing, enclosed or semi-open impeller, oil lubricated, foot mounted.
Operating Limits: Capacity up to 1,150 m³/h, head up to 235 m, temperature range -45 to 315°C.
Applications: Used in petrochemical, oil & gas, steel, automotive, food processing, power generation, pharmaceuticals, and water treatment industries.
Design Features: Complies with ANSI/ASME Standard B 73.1, features a "Back Pull Out" design, and options for high and low temperatures.

Horizontal Process Pumps

Characteristics: Radially split, single stage, centerline mounted, single suction enclosed impeller.
Operating Limits: Capacity up to 3,200 m³/h, head up to 480 m, temperature -120 to 450°C.
Applications: Suitable for petroleum refining, petrochemical, heavy-duty chemical, and gas industry services.
Design Features: Heavy-duty process design with oil ring lubrication and replaceable wear rings.

Vertical In-line Process Pumps

Characteristics: Radially split, vertical in-line, single volute casing, single suction closed impeller.
Operating Limits: Capacity 2.5 to 500 m³/h, head 15 to 290 m, temperature up to 260°C.
Applications: Used in petroleum refining, petrochemical, and chemical industries.
Design Features: Heavy-duty process design with replaceable wear rings.

Axially Split Case Centrifugal Pumps

Characteristics: Axially split, horizontal, single or double stage, double volute casing.
Operating Limits: Capacity 100 to 22,000 m³/h, head 10 to 1,200 m, temperature 205°C.
Applications: Ideal for pipeline service, oil extraction, refinery technology, and chemical/petrochemical industry.
Design Features: Heavy-duty process design with ring oil lubrication and diffuser design available.

Horizontal Split Case Pumps

Single Stage: Double suction, horizontally split casing, enclosed impellers.
MultiStage: Two and four stage, double volute, horizontally split casing.
Operating Limits: Capacity to 31,800 m³/h, head to 340 m, temperature 10 to 150°C.
Applications: Used in fire service, cooling towers, municipal, oil process, and petrochemical sectors.

Vertical Turbine Pumps

Characteristics: Multistage vertical centrifugal pumps, semi-open/enclosed impellers.
Operating Limits: Capacity to 13,636 m³/h, head to 762 m, temperature 121°C.
Applications: Suitable for deep well, irrigation, sump, condensate, and fire service.
Design Features: API 610 construction, oversized bowl shaft, epoxy coated bowls.

Vertical Axial Flow Pumps

Characteristics: Multi-stage vertical centrifugal pump, axial flow impeller.
Operating Limits: Capacity to 72,680 m³/h, head 27 m, temperature 95°C.
Applications: Used for drainage, wastewater, flood control, and irrigation.
Design Features: API 610 construction with discharge elbows to reduce friction losses.

Sump Pumps

Characteristics: Vertical arrangement, single suction, single stage.
Operating Limits: Capacity 3 to 1,931 m³/h, head 3 to 130 m, temperature range unspecified.
Applications: Suitable for water, hydrocarbons, process water, river water, and chemical solutions.

Characteristics and Design Features
Ruhrpumpen's pumps feature double suction first stage, low NPSH shockless entry impellers, integral fabricated column support bearings, and one-piece shaft construction. They are available in single or multistage configurations and comply with API 610 and PED standards.

Applications
The pumps are versatile, serving applications in condensate, power plants, municipal services, hydrocarbons, pipelines, refineries, and molten salt applications, as well as fire protection, cooling water, drinking water, sea water, and wastewater management.

Operating Limits
The pumps operate with capacities up to 25,000 m³/hr, heads up to 1,500 m, pressures up to 102 bar, and temperatures ranging from -196°C to 600°C, handling horsepower up to 3,000 kW.

Fire Pumps
Ruhrpumpen's fire pumps are UL listed and FM approved, designed for commercial centers, high-rise buildings, oil & gas platforms, power stations, and manufacturing industries, with electric motor or diesel engine options.

Specialized Pumps
Specialized offerings include cryogenic pumps for liquid nitrogen and oxygen, vertical turbine generators for hydroelectric and industrial systems, and hydraulic decoking systems for heavy-duty applications.

Service Centers and Plants
Ruhrpumpen has a global presence with service centers and plants in the USA, Germany, Mexico, Canada, Argentina, Egypt, and other countries, ensuring comprehensive support for their products.

Catalog excerpts

RUHRPUMPEN Specialist for Pumping Technology INNOVATION EFFICIENCY QUALITY SELECTION GUIDE

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RuhrpumpenTM offers a wide range of pump designs and sizes providing energy efficient solutions for the vast majority of duty conditions. Additionally, Ruhrpumpen can offer innovative, tailor-made hydraulics by modifying our high efficiency designs to provide an optimized high quality solution to meet each customer's unique requirements. The flexibility to adapt our vast product range makes Ruhrpumpen a true "one-stop shop" for all pumping needs.

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ANSI Horizontal Process Pumps CHARACTERISTICS Alloy 20, hastelloy, zirconium and other materials available upon request Single stage horizontal centrifugal pump Radially split casing with flanged connections horizontal end suction and top discharge on the center line Enclosed or Semi-open impeller Clockwise rotation (viewed from coupling end) Foot mounted Oil lubricated OPERATING LIMITS Capacity to 1,150 m3/h (5,000 U.S. GPM) Head to 235 m (770 ft) Temperature -45 to 315 °C (-50 to 600 °F) DESIGN FEATURES ANSI/ASME Standard B 73.1 (OH1) “Back Pull Out” design for ease of maintenance, allows for...

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Horizontal Process Pumps Single Stage SCE OH2 (API 610) CHARACTERISTICS Radially split, horizontal single stage centrifugal pump. Centerline mounted. Single / double volute depending on size. Single suction, enclosed impeller. Thrust compensation by balance holes. End-Top nozzle arrangement. Centerline discharge nozzle. Materials of construction per API 610 and API 685. Other materials on request. DESIGN FEATURES Heavy duty process design according to API 610 and API 685 latest edition (OH2 type). Oil ring lubrication. Other methods of lubrication are available. Replaceable front and back wear...

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Vertical In-line, Process Pumps SPN CHARACTERISTICS Radially split, vertical in-line centrifugal pump Foot mounted Single volute casing Single suction, closed impeller Thrust compensation by balance holes Side-Side in-line nozzle arrangement Materials of construction per API 610, other materials on request SPI DESIGN FEATURES Heavy duty process design according to API 610 latest edition (OH3 / OH5 type) OH5 (SPN) close coupled design OH3 (SPI) separate bearing bracket Replaceable wear rings for casing and impeller OPERATING LIMITS Capacity 2.5 to 500m3/h (11 to 2,201 U.S. GPM) Head 15 to 290...

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Axially Split Case Centrifugal Pumps CHARACTERISTICS OPERATING LIMITS Axially split, horizontal, single or double stage centrifugal pump Foot or Near-centerline mounted Double volute casing Enclosed impeller, double suction provides hydraulic balance eliminating axial thrust. Side-Side nozzle arrangement Two-stage design for higher heads Materials of contruction per API 610, other materials on request Capacity 100 to 22,000 m3/h (440 to 96,863 U.S. GPM) Head 10 to 1,200 m (33 to 3,930 ft) Discharge flange size 4 to 40 in Max. Pressure 145 bar (2,103 PSI) Temperature 205°C (401°F) DESIGN FEATURES...

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Horizontal Split Case Pumps Single Stage CHARACTERISTICS Single stage double suction horizontal centrifugal pump Horizontally split casing, double volute Flanged connections Enclosed impellers, double suction provides hydraulic balance eliminating axial thrust Clockwise or counterclockwise rotation Double ended shaft available Foot Mounted OPERATING LIMITS Capacity to 31,800m 3/h (140,000 U.S. GPM) Head to 340 m (1,115 ft) Pressure to 27 bar (298 PSI) Temperature 10 to 150°C (50to 300°F) APPLICATIONS DESIGN FEATURES Oil or grease lubricated bearings Stuffing box configured for packing or mechanical...

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Horizontal Split Case Pumps MultiStage CHARACTERISTICS OPERATING LIMITS Two and four stage horizontal centrifugal pumps, double volute Horizontally split casing, side-side nozzle arrangement Enclosed impeller Counterclockwise rotation viewed from coupling end Capacity to 454 m3/hr (2,000 U.S. GPM) Head to 670 m (2,200 ft) Pressure 50 bar (739 PSI) Temperature max: 121°C (250°F) APPLICATIONS High pressure applications (Boiler Feed, Petrochemical, Chemical, Industrial) Power plants DESIGN FEATURES Oil lubricated bearings Flanged connections Stuffing box allows for packing or mechanical seal RUHRPUMPEN...

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Horizontal Double Suction Pump, Between Bearing Single Stage CHARACTERISTICS OPERATING LIMITS Radially split, horizontal single stage centrifugal pump Centerline mounted Double volute casing Double suction, enclosed impeller Thrust compensation by double suction impeller Top-Top nozzle arrangement, other arrangements on request Materials of construction per API 610, other materials on request Capacity to 6,814 m3/h (30,000 U.S. GPM) Head to 610m (2,000 ft) Max. pressure to 125 bar (1,813 PSI) Temperature to 450°C (850°F) APPLICATIONS Heavy duty high temperature process Process and industrial...

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Horizontal Process Pumps Two Stage CHARACTERISTICS OPERATING LIMITS Radially split, horizontal two stage centrifugal pump Centerline mounted Diffuser / volute combined casing Single suction, radial, closed impeller Double suction on request Thrust compensation by opposed impellers Top-Top nozzle arrangement, other arrangements on request Materials of construction per API 610, other materials on request Capacity 18 to 2,000 m3/h (75 to 8,806 U.S. GPM) Head 150 to 1,000 m (492 to 3,281 ft) Discharge flange size 2 to 14 in Max. pressure 125 bar (1,813 PSI) Temperature 450°C (850°F) APPLICATIONS...

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Horizontal Multi-stage Pumps (Diffuser) CHARACTERISTICS OPERATING LIMITS Axially split, horizontal multistage centrifugal pump Near-centerline mounted Diffuser casing Single suction, enclosed impeller Thrust compensation by opposed impeller groups Side-Side nozzle arrangement Materials of construction per API 610, other materials on request Capacity 10 to 350 m3/h (44 to 1,540 U.S. GPM) Head 100 to 1,000 m (325 to 3,280 ft) Discharge flange size 1 1/2 to 6 in Max. Pressure 130 bar (1,890 PSI) Temperature 205°C (400°F) APPLICATIONS DESIGN FEATURES Heavy duty process design according to API 610...

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