Gruen Pumpen drum pumps, immersion pump tubes and electric drive motors

Gruen Pumpen industrial pumping systems: sealless DL-PP and DL-PVDF immersion tubes, p400 collector motors, and Ex700 explosion-proof drives.

Gruen Pumpen DL-PP polypropylene sealless drum pump tubes for acids and alkalis

Sealless immersion pump tubes in the DL-PP series transfer corrosive industrial fluids, acids, alkalis, and inorganic salt solutions from drums and containers. The seal-free architecture eliminates mechanical face friction and fluid leakage during routine drum evacuation procedures.

Corrosion-resistant pure polypropylene body engineered for aggressive chemical media
Sealless fluid isolation design eliminates mechanical face seal wear and friction
Interchangeable axial or radial impeller geometries optimize discharge flow rate
Standard immersion tube lengths matching industrial drums and bulk IBC containers

Gruen Pumpen DL-PVDF polyvinylidene fluoride pump tubes for severe chemicals

Immersion pump tubes crafted from polyvinylidene fluoride handle highly concentrated acids, halogens, and aggressive chemical oxidizers. A precision drive shaft forged from corrosion-proof Hastelloy alloy guarantees reliable torque transmission in chemically harsh plant environments.

Superior thermo-chemical endurance of PVDF polymer against concentrated oxidizers
Heavy-duty Hastelloy drive shaft delivers ultimate resilience in hot fluid streams
Sealless immersion unit requires minimal routine overhaul and operational checks
Standardized quick-action motor coupling flange connects with modular drive units

Gruen Pumpen DL-Niro stainless steel 1.4571 pump tubes for solvents and food

Immersion pump tubes manufactured from high-alloy austenitic stainless steel 1.4571 handle neutral fluids, flammable organic solvents, paints, and hygienic liquid preparations. A finely finished internal bore ensures thorough fluid drainage and effortless chemical cleaning.

High-alloy stainless steel 1.4571 construction provides mechanical durability
Safe transfer of flammable thin solvents, technical spirits, and light fuel oils
Smooth internal fluid bore supports rapid flushing and hygienic sanitation runs
Available in sealless design or fitted with specialized mechanical face packing

Gruen Pumpen DL-Alu lightweight aluminum pump tubes for oils and diesel fuel

Lightweight DL-Alu immersion pump tubes crafted from corrosion-resistant aluminum alloys handle mineral motor lubricants, hydraulic oils, engine coolants, and petroleum fuels. The reduced weight profile simplifies manual repositioning between adjacent drums across shop floors.

Rugged yet lightweight aluminum housing ensures convenient operator handling
Streamlined hydraulic pathway tailored for light lubricants and petroleum media
Reinforced shaft guide bushings fabricated from low-friction PTFE polymer
Smooth connection to standard industrial dispense hoses and manual fluid nozzles

Gruen Pumpen p400 and p310 universal collector drive motors for drum pumps

Electric universal collector motors p400 (850 W) and p310 (520 W) deliver high torque, double electrical insulation, and integrated thermal overload protection for drum pump tubes. The p400 variant supplies powerful driving force when evacuating dense or medium-viscosity fluids.

High-output 850 W electric motor delivers robust torque for demanding liquid tasks
Economical 520 W motor model p310 optimized for routine low-viscosity drum jobs
Internal thermal protection switch safeguards motor windings from power surges
Quick-action snap-on mechanical coupling enables tool-free tube docking in seconds

Gruen Pumpen Ex700 explosion-proof and scorpio cordless battery drive motors

Engineered for Zone 1 hazardous environments and flammable liquids, the Ex700 electric motor (700 W) features a flameproof enclosure. The modern cordless scorpio motor runs on lithium-ion battery packs, providing complete mobility when emptying IBC containers without line power.

Explosion-proof Ex700 motor compliant with II 2G EEx de IIC T5 for Zone 1 safety
Cordless scorpio motor driven by lithium-ion battery packs for remote operations
Ergonomic handle incorporates variable trigger speed control and safety lockout
Unified quick-dock interface matches all interchangeable pump tube configurations

German engineering traditions and pump production in Alzenau

The industrial heritage of gruen-pumpen gmbh began in 1993 with the development of its first proprietary drum pump model in Wertheim, Germany. In 2008, the manufacturing plant expanded into a modernized facility in Wertheim-Bestenheid.

A decisive operational step occurred in 2019 when corporate headquarters and assembly lines relocated to Alzenau in Bavaria.

A purpose-built 3,000 m² engineering, warehousing, and testing facility in Alzenau provides full production oversight under commercial register entry HRB 15383.

Under the executive direction of Julius Vaeth and Maximilian Vaeth, the enterprise continuously refines modular pump technologies, supplying industrial drum systems to production plants globally.

Design characteristics and sealless operating principles of DL-PP tubes

Polypropylene immersion pump tubes belonging to the DL-PP series handle corrosive industrial liquids, inorganic acids, alkalis, and salt mixtures.

The lower submerged section operates without mechanical face packing, preventing fluid leaks from seal friction and precluding drive seizure during brief dry-run transitions during container evacuation.

Process media entering the tube continually bathes internal fluoropolymer sleeve bushings, dissipating frictional thermal energy from the high-speed rotor shaft.

The modular build accommodates interchangeable axial flow impellers for maximum delivery speed or radial flow impellers when developing elevated discharge head over tall pipe rises.

Superior PVDF fluoropolymer resilience against aggressive oxidizers

When conveying highly concentrated mineral acids, active halogens, and aggressive chemical oxidizers, PVDF polymers deliver unmatched chemical and thermal endurance.

Submerged DL-PVDF tubes incorporate a solid drive shaft forged from high-tensile Hastelloy alloy to guarantee structural integrity in corrosive industrial chemical lines.

The hermetic sealless pump design prevents elastomer degradation caused by corrosive acidic vapors and chlorine agents.

Operators can disassemble modular pump units for hydraulic inspection without dedicated maintenance tools, minimizing required technical servicing intervals across industrial chemical manufacturing facilities.

Deploying hygienic DL-Niro stainless steel tubes in sanitary sectors

Immersion pump tubes in the DL-Niro series are fabricated from high-grade austenitic stainless steel 1.4571 (AISI 316Ti), ensuring superior mechanical strength and oxidation resistance.

The units safely evacuate alcohols, flammable organic thinners, paints, and sanitary preparations in pharmaceutical and fine chemical plants.

The ultra-smooth internal fluid pathway prevents particulate accumulation and microbiological growth.

The stainless steel pump tube design fully withstands regular clean-in-place (CIP) flushing cycles and high-temperature steam sterilization, fulfilling stringent hygiene standards established throughout sanitary production sectors.

Universal collector electric drive motors in the p400 and p310 series

Collector electric motor drives in the p400 and p310 lines provide reliable motive power across all interchangeable gruen-pumpen immersion tube models.

Model p400 develops 850 W power output and elevated starting torque, which is essential for evacuating viscous industrial liquids, heavy chemical solutions, and concentrated slurries.

The economical 520 W motor model p310 provides energy-efficient performance for regular transfer of low-viscosity fluids.

Both drive lines feature Class II double electrical insulation, internal thermal cutoffs preventing electrical overload, and quick-dock mechanical couplings that allow instant, tool-free tube attachment.

Flameproof protection of Ex700 and cordless mobility of scorpio drives

For safe evacuation of flammable solvents in Zone 1 hazardous environments, the Ex700 electric motor (700 W) incorporates an engineered flameproof housing.

Operating under II 2G EEx de IIC T5 safety standards, the drive eliminates ignition risks when surrounded by volatile solvent vapors and combustible hydrocarbon mixtures.

The modern scorpio motor operates on interchangeable lithium-ion battery packs, providing complete operator mobility.

The cordless drive enables plant staff to quickly empty drums and bulk IBC containers situated across remote loading yards, railway sidings, and outdoor tank depots without deploying long electrical power cords.

Gruen Pumpen and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Gruen Pumpen and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.