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DJ‑W Mechanical Diaphragm Metering Pump

Commodity name： DJ‑W Mechanical Diaphragm Metering Pump

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Description

DJ-W Mechanical Diaphragm Metering Pump Product Details
1. Product Overview
The DJ-W mechanical diaphragm metering pump is an economical, compact and highly adaptable precision fluid conveying equipment, specially designed for low-pressure precise metering scenarios. With an integrated compact diaphragm structure and optional multi-corrosion-resistant wetted parts, it is perfectly suitable for precise delivery of corrosive, high-viscosity and dangerous chemical media under low-pressure working conditions.
Equipped with an original multi-layer composite mechanical diaphragm and pure mechanical drive structure, the pump realizes a precise linear relationship between flow rate and stroke. The output flow is almost unaffected by working pressure fluctuations with stable metering accuracy. Featuring flexible adjustment, diverse material options and low-noise operation, it is widely applied in environmental protection, chemical, pharmaceutical and food industries.
2. Core Product Features
Linear Precise Metering, Strong Pressure Anti-interference
The professional diaphragm structure ensures an accurate linear matching between flow rate and stroke/frequency. The output flow remains stable without deviation even under fluctuating low pressure, solving the accuracy drift problem of ordinary pumps and maintaining long-term consistent metering performance.
Dual-mode Flow Adjustment, Flexible and Accurate Control
It supports dual adjustment modes of stroke length and motor frequency, covering micro-dosing and large-flow stable delivery. Equipped with a dedicated motor controller, it realizes precise start-stop control of three-phase motors, achieving stepless and accurate flow regulation for diverse production demands.
No Guard Plate Design, Smooth Medium Passing
The mechanical direct-drive diaphragm adopts a no-guard-plate material side design with unobstructed flow channels. It greatly improves the trafficability of high-viscosity, easily crystallized and slightly impure media, effectively avoiding blockage and medium retention.
Five-layer Composite Diaphragm, Ultra-long Service Life
The core diaphragm adopts a five-layer composite pressing structure for comprehensive performance upgrade: 1st layer of super-tough Teflon acid-resistant film, 2nd layer of EPDM elastic rubber, 3rd layer of 3mm SUS304 support iron core, 4th layer of reinforced nylon fiber, and 5th fully wrapped EPDM rubber. It effectively improves corrosion resistance, tensile resistance and fatigue resistance, greatly extending the service life compared with ordinary single-layer diaphragms.
Full-range Material Pump Head, Complete Media Adaptation
Four optional pump head materials: PVC for cost-effective conventional corrosive media; PTFE for strong acid and alkali extreme media; 304/316L stainless steel for food, pharmaceutical and high-purity scenarios. Modular material selection meets diverse anti-corrosion and clean production requirements.
Low-noise Stable Operation, Low Maintenance Cost
Adopting reducer eccentric drive and precision bearing support with long-term grease lubrication, the pump runs stably with low vibration and low noise. The enhanced structure adapts to harsh continuous working environments, featuring zero leakage, simple disassembly and maintenance, and low overall operating costs.
3. Working Principle
The DJ-W mechanical diaphragm metering pump operates on a pure mechanical diaphragm reciprocating deformation principle. The reducer drives the eccentric mechanism to push the diaphragm to stretch and contract regularly, changing the internal pump cavity volume to complete negative pressure suction and precise medium discharge. The flow rate is accurately controlled by adjusting the stroke length or motor frequency, realizing quantitative and controllable fluid delivery.
Benefiting from the dual characteristics of rigidity and elasticity of the multi-layer composite diaphragm and the unobstructed flow channel design, the medium is delivered without retention or loss. Cooperating with the closed-loop sealing of precision valve groups, it eliminates backflow and leakage, ensuring long-term stable and accurate metering operation.
4. Core Application Scenarios
Focusing on economy, stability and full-media adaptability, the DJ-W pump is dedicated to low-pressure precision delivery of corrosive, high-viscosity and dangerous fluids:
Environmental Water Treatment: Precise dosing of flocculants, neutralizers and sewage treatment agents, supporting 24-hour continuous stable operation with low maintenance.
Petrochemical & Refining Industry: Quantitative delivery of corrosive additives and dangerous chemical fluids, adapting to complex corrosive working conditions in petrochemical processes.
Fine Chemical Industry: Proportioning of high-viscosity and easily crystallized media, with smooth flow channels to avoid blockage and meet fine production precision requirements.
Electric Power & Metallurgy: Dosing of water treatment and metallurgical auxiliary agents, with anti-fatigue and harsh-environment resistance for long-term heavy-duty operation.
Pharmaceutical & Food Industry: Clean delivery of food additives and pharmaceutical intermediates via 304/316L stainless steel pump heads, meeting hygienic and safe production standards.
5. Product Summary
The DJ-W mechanical diaphragm metering pump features compact structure, cost performance, stable metering and wide media adaptability. With an innovative five-layer long-life composite diaphragm, pressure-interference-free linear metering, full-range material matching and low-noise stable operation, it perfectly fits various low-pressure precision metering scenarios. More economical and easier to maintain than plunger pumps, and more durable and accurate than ordinary diaphragm pumps, it is the preferred cost-effective equipment for precise delivery of corrosive, high-viscosity and dangerous industrial fluids.

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Company Information

Hebei Xingou Machinery Equipment Co., Ltd., is a large-scale slurry pump manufacturing enterprise. Xingou provides slurry pump and special alloy parts that feature a high performance and a wearing and corrosion resistance. First established in 1998, we now own three production bases with a dredge pump, desulphurization pump and slurry pump production base located in Shijiazhuang Development Zone, covering 46000 square meters.
Xingou can complete the research and development of new products, due to our self-owned pump test station, which carries out tests with extreme accuracy to ensure all pumps meet international standards, and allow us to offer only the best products and materials to meet different operating conditions. We have a large mold database that includes a full range of advanced aluminum molds used to produce various industrial pump castings. Our company has an extensive inventory of standard pieces, allowing us to keep a delivery period to within 10 days of the order being placed. If standard products don’t meet your needs, supply us with special design drawings, and we will carry out custom OEM orders for even the most advanced EPC casing line. We work with numerous well-known domestic names, including the Waterway Bureau, mining companies, desulphurization companies and more, as well as partnerships with international corporation customers.
Our product line includes pumps and accessories, and OEM services, and has been sold around the world to customers from North and South America, Africa, Russia, Europe and Southeast Asia. Come check us out today, and let Xingou show you what we have to offer for all of your slurry pump needs.

Our Services

1. Processing with supplied drawing

2. Processing with supplied samples

3. Produce all kinds of anti abrasive spare parts except for pump

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