Selection guide
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RUHRPUMPEN Specialist for Pumping Technology INNOVATION EFFICIENCY QUALITY SELECTION GUIDE

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.

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...

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...

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...

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...

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...

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...

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...

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)...

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...

Horizontal Multi-stage Pumps (Volute) CHARACTERISTICS OPERATING LIMITS Axially split, horizontal multi-stage centrifugal pump Near-centerline mounted Double volute casing Single suction, closed impeller Double suction impellers for higher flows Thrust compensation by opposed impeller groups Side-Side nozzle arrangement Materials of construction per API 610, other materials on request Capacity 50 to 3,000 m3/h (220 to 13,209 U.S. GPM) Head 200 to 3,000 m (656 to 9,843 ft) Discharge flange size 3 to 14 in Max. Pressure 420 bar (6,000 PSI) Temperature up to 205°C (400°F) APPLICATIONS DESIGN...