Flowserve centrifugal pumps

DURCO Mark 3 ISO – chemical process pump

The heavy-duty casing features a ribbed discharge nozzle and is also available with a semi-open impeller. The unique SealSentry seal chamber can accommodate any mechanical seal, while externally adjustable impeller clearances enable easy maintenance.

Standard: ISO 2858 / ISO 5199

Operating range:

• Q max: 1400 m3/h
• H max: 220 m
• Max. operating pressure: 25 bar
• Temperature range: -80°C to 400°C

DURCO Mark 3 ANSI – Chemical process pump

The unique reverse vane impeller and the standard Mark 3 bearing housing provide excellent performance. Externally adjustable impeller clearances and heavy-duty bearings ensure efficient, reliable operation. The dual-lip oil seals and large transparent oil sight glass allow for easy maintenance.

Standard: ASME (ANSI) B73.1

Operating range:

• Q max: 4540 m3/h
• H max: 215 m
• Max. operating pressure: 27 bar
• Temperature range: -73°C to 370°C

CPXV – Vertical shaft centrifugal pump

The pump casing integrated with the suction strainer incorporates a high-efficiency, front-opening impeller that can be used with an immersion length of up to 10 meters. The steady bearings provide axial adjustment capability, and multiple sealing arrangements are available.

Standards: ISO 13709 / API 610, 8th & 10th ed. / ISO 5199

Operating range:

• Q max: 1400 m3/h
• H max: 250 m
• Max. operating pressure: 25 bar
• Temperature range: -40°C to 400°C

MEN/ME/MENBLOC – Single-stage centrifugal water pumps with axial inlet and radial discharge connection

The modular pump is available in 33 sizes and features an upward-facing discharge nozzle with a precision-machined, high-efficiency, closed impeller. The axially reduced-load impeller ensures efficient operation, while the open stuffing box housing, equipped with integrated flow-guiding ribs, enhances performance.

Standards: DIN 24255 EN 733 Flowserve

Operating range:

• Qmax: 800 m3/h
• Hmax: 140 m
• Max. operating pressure: 16 bar
• Tmax: up to 120°C

LNN, LNNV, LR – Double-suction, single-stage centrifugal pumps

The heavy-duty, axially split volute casing features an in-line design, ensuring durability and reliability. The hydraulically balanced, double-suction impeller ensures efficient operation. Suction and discharge nozzles are available to ANSI, DIN, or ISO standards, providing broad application flexibility.

Standards: ISO 13709/API 610 (OH2)

Operating range:

• Qmax: 30 000 m3/h
• Hmax: 300 m
• Max. operating pressure: 430 bar
• Tmax: up to 1450 °C

WDX, WDR – Multistage centrifugal pumps for generating high pressure

The system is equipped with hydraulically optimized diffusers that improve efficiency and reduce energy losses. The casing is radially split, making maintenance and component replacement easier. A deep-groove ball bearing and a double-row angular contact thrust bearing ensure reliable operation and long service life.

Standards: ISO 13709 / API 610 (OH2)

Operating range:

• Qmax: 190 m3/h
• Hmax: 700 m
• Max. operating pressure: up to 75 bar
• Tmax: up to 210°C

HPX - API 610 compliant centrifugal pump

The centerline-supported volute casing design provides stability and durability, allowing nozzle to exceed those specified in ISO 13709 / API 610. The system features dynamically balanced, high-efficiency impellers that enhance energy efficiency and reduce operating costs.

Standards: ISO 13709 / API 610 (OH2)

Operating range:

• Q max: 2000 m3/h
• H max: 350 m
• Max. operating pressure: 80 bar
• Temperature range: -160°C to +450°C

F multistage, overhung bearing centrifugal pumps

Multistage pumps for horizontal and vertical installation for higher heads

Applications:

• Raw and potable water transfer, pressure boosting
• Firewater / sprinkler system pump
• Boiler feed pump

Operating data:

• Flow rate up to 500 m3/h
• Head up to 290 m
• Maximum operating pressure 29 bar
• Temperature up to 140°C

CPX single-stage centrifugal chemical process pumps

Widely used ISO chemical process pumps

Applications:

• Acids and alkalis
• Polymers
• Fluids containing solids or fibrous contaminants
• Wastewater sludges
• Lime milk

Operating data:

• Flow rate: up to 1400 m3/h
• Head: up to 220 m
• Pressure: max. 25 bar
• Operating temperature: -80°C to +350°C
• Discharge connection: 20 mm to 200 mm