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DJ‑X2 mechanically driven diaphragm metering pump

Commodity name： DJ‑X2 mechanically driven diaphragm metering pump

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Description

DJ-X2 Mechanically Driven Diaphragm Metering Pump Product Details

1. Product Overview

The DJ-X2 mechanically driven diaphragm metering pump is an economical high-precision fluid conveying equipment specially designed for low-pressure precise dosing, lightweight energy-saving delivery and continuous standardized working conditions. Different from the high-pressure heavy-duty positioning of DY-series hydraulic diaphragm pumps and plunger pumps, it adopts a pure mechanical worm gear drive structure without hydraulic circuits, featuring simpler structure, higher stability and lower maintenance threshold. With a refined flow range of 0–480L/H and stable working pressure of 0.4–1.2MPa, it is the core general model for small and medium-flow precise chemical dosing in water treatment, light industry and general industrial processes.

The innovative full-isolation diaphragm structure completely separates the conveying medium from the drive lubrication system to avoid pollution and leakage. Equipped with upgraded PTFE and rubber composite diaphragms, it combines strong corrosion resistance and high fatigue resistance to extend service life significantly. Compatible with two-phase/three-phase standard and explosion-proof motors, it supports manual and automatic dual flow control modes. Optional IP54/IP55 protection grades and -30℃～80℃ wide temperature adaptation ensure stable all-weather operation. Modular pump head materials including PVC, PTFE, 304 and 316L stainless steel adapt to various corrosive and non-corrosive clean fluids, delivering high cost performance and low failure rate for standardized precision metering scenarios.

2. Core Product Advantages

Pure Mechanical Direct Drive, No Hidden Hydraulic Risks

Unlike hydraulic pumps that suffer from oil leakage and circuit aging, the DJ-X2 adopts a rigid worm gear mechanical drive with concise transmission links, linear and stable power response, no hydraulic oil leakage or pressure fluctuation. It maintains stable metering accuracy during long-term continuous operation with lower failure rate, making it the optimal stable model for standardized low-pressure precise dosing.

Reinforced Composite Diaphragm, Corrosion-resistant & Long Service Life

The upgraded PTFE+ rubber double-layer composite diaphragm overcomes the defects of easy aging and cracking of ordinary single-layer diaphragms. The surface PTFE layer resists acid, alkali, solvent corrosion and oxidation, while the inner rubber base provides sufficient toughness and anti-fatigue performance. It effectively reduces loss from high-frequency reciprocating movement, greatly extending the service life of vulnerable parts and lowering maintenance costs.

Full-isolation Zero-leakage Design, Pollution-free Clean Conveying

The flexible diaphragm completely isolates the medium from the mechanical drive and lubrication system. The medium only contacts the pump head and diaphragm without lubricant or impurity contamination, realizing zero leakage, zero pollution and zero liquid mixing. It avoids equipment corrosion and safety hazards caused by corrosive medium leakage and ensures the purity of high-purity media, suitable for clean production scenarios in environmental protection, pharmaceutical and light industry.

Full-range Stepless Flow Regulation, Flexible & Precise Production

It supports 0–100% full-scale stepless flow adjustment, accurately adapting to micro dosing, standard dosing and variable gradient dosing. It features stable start-stop operation, uniform flow output and low repeated metering error, solving the problems of unstable flow and rough proportioning of ordinary dosing equipment and meeting high-standard precision process requirements.

Multi-material Modular Pump Head, Universal Media Adaptation

Four optional pump head materials match diverse working conditions: PVC for conventional clean water and weak acid-base media with high cost performance; PTFE for strong corrosion, crystallization and solvent media; 304/316L stainless steel for sanitary, high-purity and clean fluids. It covers most particle-free industrial fluid media with strong universal compatibility.

High Protection & Wide Temperature Adaptation, Continuous Stable Operation

With optional IP54/IP55 dustproof and waterproof grades, it operates stably in the wide temperature range of -30℃～80℃, resisting temperature fluctuation, dust and humidity interference. Compatible with standard and explosion-proof motors, it adapts to ordinary workshops, high-risk explosion-proof workshops and outdoor supporting equipment with strong environmental adaptability.

Dual-mode Intelligent Control, Minimal Maintenance & High Cost Performance

Manual mode is for on-site calibration and small-batch commissioning, while the automatic mode connects with industrial automation systems to realize unattended constant dosing and remote variable regulation. The streamlined structure enables easy disassembly and maintenance without professional tools and complex procedures. With low procurement and operation costs, it is a benchmark cost-effective model for low-pressure precision metering scenarios.

3. Working Principle

The DJ-X2 mechanically driven diaphragm metering pump adopts the pure mechanical worm gear drive diaphragm positive displacement conveying principle. The motor drives the worm gear transmission mechanism to convert rotating motion into stable reciprocating flexible deformation of the diaphragm, dynamically changing the pump cavity volume. Cooperating with synchronous opening and closing of high-precision inlet and outlet one-way valves, it completes the whole process of medium negative pressure suction, pressure stabilization and quantitative discharge.

Replacing the traditional piston structure with a flexible diaphragm, it physically isolates the medium from the drive system to avoid pollution and wear leakage. By adjusting the stroke length and operating frequency, full-range stepless flow regulation from 0 to 100% is realized. It stably conveys various particle-free corrosive and non-corrosive liquids with long-term high precision and low loss under low-pressure working conditions.

4. Core Technical Parameters

Flow Range: 0–480L/H, refined small-flow stepless adjustment for precise micro dosing;

Working Pressure Range: 0.4–1.2MPa, perfectly adapted to industrial low-pressure standardized processes;

Drive Configuration: Two-phase/three-phase standard motor or explosion-proof motor optional;

Control Mode: Manual precise fine adjustment + full-automatic intelligent control;

Protection Grade: IP54, IP55 optional, dustproof, waterproof and environment-resistant;

Ambient Temperature Range: -30℃～80℃, all-weather stable wide-temperature operation;

Pump Head Material: PVC, PTFE, Stainless Steel 304, Stainless Steel 316L;

Core Configuration: PTFE+ rubber composite corrosion-resistant diaphragm with excellent fatigue resistance and long service life.

5. Core Application Scenarios

Positioned for low-pressure, small-flow, standardized and normalized precise dosing, the DJ-X2 series focuses on lightweight, high-precision and cost-effective general industrial fluid delivery, completely differentiated from the heavy-duty high-pressure positioning of hydraulic pumps and large-flow plunger pumps.

Municipal & Industrial Water Treatment: Precise dosing of disinfection chlorine, flocculants and coagulants for water plants; quantitative delivery of acid-base neutralizers, carbon sources and dephosphorization agents for industrial sewage. It serves as the core supporting equipment for water treatment dosing systems with stable low pressure, accurate metering and simple maintenance.

Small Fine Chemical Industry: Micro precise proportioning and conveying of chemical additives, catalysts, acid-base regulators and solvents for low-pressure and normal-temperature chemical processes. The composite diaphragm resists mild corrosion, and the full-isolation structure ensures reagent purity for small-batch refined production.

Food, Pharmaceutical & Light Industry: Quantitative dosing of food additives, daily chemical auxiliaries and pharmaceutical clean media. The 304/316L stainless steel pump head ensures no impurity precipitation or pollution, complying with light industry clean production standards.

Circulating Water & HVAC Supporting Systems: Continuous quantitative dosing of scale inhibitors, corrosion inhibitors and fungicides for industrial circulating water. It supports 24-hour stable operation, adapts to wide temperature workshop environments, and reduces maintenance frequency for HVAC and heat exchange systems.

Small Explosion-proof Non-standard Working Conditions: Conveying of flammable, explosive and volatile media under low pressure and normal temperature. The optional explosion-proof motor and fully sealed structure eliminate leakage and spark risks, meeting safety production requirements of small explosion-proof workshops.

Laboratory & Pilot Trial Scenarios: Precise fluid proportioning and small-batch medium delivery for scientific research experiments and pilot production. Full-range stepless regulation and stable accuracy adapt to multi-parameter debugging and flexible trial production.

6. Product Summary

With the core strengths of pure mechanical direct drive without hydraulic risks, long-life PTFE composite diaphragm, full-isolation zero-leakage clean conveying, 480L/H refined small-flow precise control, multi-material full-media adaptation, high-protection wide-temperature stability and minimal maintenance with high cost performance, the DJ-X2 mechanically driven diaphragm metering pump accurately targets the low-pressure small-flow precision metering segment. It solves the industry pain points of complex structure, easy oil leakage and tedious maintenance of traditional hydraulic pumps, as well as short diaphragm life and poor accuracy of ordinary metering pumps. It is the preferred economical precision metering equipment for standardized low-pressure precise dosing in water treatment, light chemical industry, clean processes and scientific research supporting scenarios.