LDT Dosiertechnik proportional dosing pumps and fluid systems

LDT Dosiertechnik flow systems: water-powered dispensers D25, D3, ATEX explosion-proof units, electric pumps, modular skids, and spare parts.

LDT Dosatron D25 series water-powered proportional dosing pumps

LDT Dosatron D25 proportional dispensers operate strictly via fluid pipeline energy without electrical connections across flow rates of 10 to 2500 l/h. The volumetric hydraulic motor maintains stable chemical injection concentrations despite line pressure fluctuations.

Volumetric water flow operating window spans from 10 to 2500 liters per hour in service
Repetitive dosing accuracy remains within three percent compliance under API standards
Corrosion proof polymer housing assembly with fluoropolymer plunger seal components
Available configurations featuring fixed ratio injection alongside adjustable models

LDT Dosatron D3 series universal fluid proportional dispensers

LDT Dosatron D3 proportional dosing units handle water throughput between 10 and 3000 l/h while supporting broad additive ratios from 0.03% to 25%. The modular architecture streamlines periodic seal changeout and adaptation to aggressive chemical reagents.

Operational fluid throughput spans from 10 to 3000 liters per hour across pipelines
Precise additive metering ratios adjustable between 0.03% and 25% concentration volume
Specialized valve cartridges designed for viscous lubricants, biocides, and acids
Graduated external adjustment scale permits fast ratio tuning without unique tools

LDT Dosatron ATEX explosion-proof fluid proportional dosing pumps

LDT Dosatron ATEX dosing dispensers are engineered for industrial chemical and mining sites where explosive dust or vapors exist. Fully non-electric water-actuated operation prevents ignition hazards while introducing process additives reliably into piping.

Reliable deployment across hazardous explosive atmosphere classifications and zones
Inherently spark-free fluid drive mechanism operating without electrical power feeds
Static dissipative polymer housing material complete with ground terminal connections
Robust hydraulic drive endurance under challenging underground mining conditions

LDT electric solenoid and motor-driven chemical dosing pumps

LDT motor and solenoid driven diaphragm dosing pumps deliver precise chemical dosing against elevated pipeline pressures. Integrated microprocessor controllers regulate pulse timing from external flowmeter contacts or analog 4-20 mA instrumentation loops.

Dual adjustments covering mechanical stroke length and digital stroke frequency
Accepts 4-20 mA proportional analog inputs and external pulse water meter triggers
Wetted head assemblies fabricated in PVDF, PTFE, and high purity ceramic materials
Low reagent level monitoring input with automatic shutdown to protect pump heads

LDT pre-assembled skid-mounted chemical dosing packages

LDT turnkey dosing stations arrive fully assembled on chemical-resistant skids fitted with LD-PE storage tanks from 40 to 1000 liters. Each package integrates mechanical mixers, rigid suction lances, pulsation dampeners, and pre-wired power junction boxes.

Molded polyethylene reagent vessels ranging across 40, 100, 250, 500, and 1000 liters
Manual and motor driven agitators ensuring thorough mixing of powdered reagents
Rigid suction lances featuring foot check valves and built-in dry run level sensors
Skid mounts incorporating containment bunds to retain stray chemical drips

LDT standard replacement parts and auxiliary pipeline fittings

LDT dosing accessories encompass suction assemblies, injection check valves, pressure regulators, and contact water meters. Replacement elastomer seal sets, pistons, and drive shafts prolong reliable operating life across demanding industrial dosing points.

Spring-loaded injection quill fittings preventing backflow into chemical dosing lines
Inlet water pressure reducing valves and protective mesh strainers for pump safety
Rebuild seal packages including fluorocarbon O-rings and motor piston assemblies
Reinforced braided tubing and reed contact pulse water meters for flow tracking

German engineering background and dosing expertise of LDT Dosiertechnik GmbH

German manufacturer LDT Dosiertechnik GmbH, headquartered within Hamburg, has dedicated more than three decades to designing and producing precision equipment for volumetric fluid injection.

The engineering enterprise holds a strong reputation across European industry for advanced non-electric proportional dosing units and customized chemical processing packages.

The Hamburg facility incorporates high precision plastic machining bays, chemical seal endurance test rigs, and automated calibration benches for flow instruments.

LDT flow control products provide reliable service across municipal water treatment, metalworking coolant distribution, food processing lines, and commercial horticultural greenhouse networks.

Hydraulic operating principles of volumetric water-powered proportional dispensers

The working core of LDT proportional dispensers is a balanced hydraulic piston motor energized entirely by motive water flow without external power wiring.

Piston displacement couples mechanically to a chemical suction assembly that draws concentrated additive directly from a storage drum or fluid reservoir.

Throughout continuous plant operation, the dispenser injects reagent in strict proportion to incoming water volume, preventing concentration drift during system pressure drops or fluctuating line flow.

Additive mixing occurs directly inside the integrated blending chamber, delivering homogeneous solution down the utility header.

Technical parameters and tuning procedures for D25 and D3 product series

The Dosatron D25 and D3 product lines address demanding flow rates from 10 to 3000 liters per hour while providing mechanical injection ratio tuning from 0.03% to 25%.

Dispenser bodies are machined from chemically inert polypropylene and polyvinylidene fluoride polymers to withstand aggressive acids and concentrated alkaline solutions.

Dosage ratio adjustment is completed by rotating an external graduated collar ring without shutting down mainline pipeline pressure.

For viscous cutting oils, flocculants, and biocides, LDT supplies specialized check valve cartridges fitted with resilient fluorocarbon and ethylene-propylene elastomer seals.

Explosion-proof operation of ATEX compliant industrial proportional dosing units

For hazardous processing locations where flammable gas or combustible dust concentrations present ignition risks, LDT manufactures dedicated ATEX industrial dosing dispensers.

The mechanical design contains zero electrical wiring, solenoid coils, or electronic sensors, eliminating ignition sources during continuous chemical feed operations.

Every housing element and fluid connection in the ATEX portfolio is fabricated from conductive polymer compounds with integrated grounding terminals to drain electrostatic charges safely to plant earth.

These units operate reliably in underground mining tunnels, chemical processing plants, solvent coating bays, and pharmaceutical manufacturing areas.

Skid-mounted modular dosing packages and reagent preparation systems

LDT turnkey dosing stations arrive as fully configured packages mounted on corrosion-resistant polymer frames equipped with LD-PE polyethylene storage vessels from 40 to 1000 liters.

The systems incorporate top-mounted mechanical blade agitators driven manually or by electric gearmotors to dissolve powder additives and keep suspensions uniform.

Each modular station includes rigid suction lances with inlet strainer screens, integrated foot check valves, and magnetic float switches to detect reagent depletion.

Upon engineering request, systems can be fitted with motor-driven diaphragm pumps, inline pulsation dampeners, and automated electrical control panels with dry run protection.

Service maintenance intervals and standard replacement component selection

Operational longevity and metering precision of LDT equipment are maintained through scheduled changeout of wearing piston seals, valve springs, and guide rings according to factory guidance.

The manufacturer supplies comprehensive seal overhaul kits enabling plant technicians to perform routine maintenance directly on site without protracted downtime.

When selecting spare parts, engineering teams review fluid viscosity, reagent aggressiveness, operating temperature, and mainline water pressure.

Deploying standard LDT replacement assemblies preserves calibrated dosing accuracy, maintains bubble-tight fluid containment, and prevents unscheduled pipeline interruptions.

LDT Dosiertechnik 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 LDT Dosiertechnik and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.