CombiSump - Vertical Long Shaft Sump Pump according to ISO 2858, EN 733, API 610 (VS4)

A sump pump designed to EN 733 (DIN 24255), ISO 5199 - ISO 2858 / EN 22858, API 610 / API 682. CombiSump is the sump pump solution for thin liquids with the pump casing submerged into the liquid and a dry motor construction.

Sump Pump – Engineered to EN 733 / ISO 2858 / API 610 Standards

Design Standards

This sump pump complies with multiple international standards including EN 733 (DIN 24255), ISO 5199, ISO 2858 / EN 22858, and API 610 / API 682, making it suitable for demanding industrial applications.

Key Features

Standardized and modular construction
Optional magnetic drive configuration
Customizable sump depth up to 10 meters
Reproducible optimized hydraulics for consistent performance
High-efficiency impeller design
Closed impeller with back vanes to balance axial loads
Half-open impeller with wear plate and external adjustment capability
Standard shaft sealing via oil seal; optional gas-tight sealing by mechanical seal or gland packing
Discharge flange options: ISO 7005 PN16, PN20, PN50 or ANSI B16.5 150/300 lbs
ATEX certified for use in explosive environments
Silicon carbide radial bearings lubricated by pumped liquid
Optional external lubrication system
Heavy-duty grease-lubricated double-row angular contact bearing for axial loads
Standard IEC flange motor compatibility
Mounting plate options: vapor-tight or pressurized design
Available in rectangular or circular mounting plate formats
Engineered API 610 / API 682 versions for hydrocarbon and petrochemical industries

Application Suitability

Ideal for pumping thin, clean or slightly contaminated liquids including water, effluent, cleaning products, chemicals, and hydrocarbons.

Technical Data

Casing:	Cast iron, Nodular cast iron, Bronze, Stainless steel, Stainless steel alloys, Nickel based alloys, Duplex
Impeller:	Cast iron, Bronze, Stainless steel, Stainless steel alloys, Nickel based alloys, Duplex
Max. capacity:	1500 m³/h
Max. delivery head:	160 m
Max. liquid temp:	160°C
Max. pressure:	1600 kPa (16 bar), for API 610 up to 3500 kPa (35 bar)
Max. viscosity:	200 mPas
Max. speed:	3 600 rpm