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DZ‑Z plunger metering pump

Commodity name： DZ‑Z plunger metering pump

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Description

DZ-Z Plunger Metering Pump Product Details
1. Product Overview
The DZ-Z plunger metering pump is an economical high-precision plunger measuring equipment specially designed for medium and high-pressure mass production, high-temperature medium conveying, small-flow constant proportioning and general high-risk chemical working conditions. It fills the gap in the DZ product lineup and forms clear differentiation from DZ-D medium-pressure general-purpose pump, DZ-D2 ultra-high pressure heavy-duty pump and DZ-ZR ultra-high pressure micro scientific research pump. Adopting a refined small flow range of 0–470L/h and industrial golden medium-high pressure range of 0–40MPa, it supports medium temperature resistance up to 450℃. With stable industrial-grade metering accuracy of ±1%, it focuses on mass production stability and cost performance, perfectly adapting to industrial continuous precise dosing and conventional high-temperature and high-pressure processes, solving the industry selection pain points of insufficient accuracy of large-flow pumps, excessive cost of ultra-high pressure pumps and low capacity of micro metering pumps.
Adopting a rigid plunger reciprocating positive displacement structure, it eliminates medium isolation deviation of diaphragm pumps and oil circuit loss of hydraulic pumps. The plunger and seal are in direct contact with the medium, featuring strong transmission rigidity, stable pressure output and excellent metering linearity. Equipped with 304/316 stainless steel pump heads, it adapts to corrosive, clean, high-temperature and high-pressure media. Optional stainless steel and oxide ceramic plungers are available; the upgraded oxide ceramic plunger features high hardness, ultra-wear resistance, strong corrosion resistance, high temperature resistance and chemical inertness, suitable for harsh media with fine particles, strong acid and alkali, and high-temperature scouring. The optimized transverse automatic centering structure ensures low-wear coaxial operation and reduces maintenance costs significantly. Compatible with standard and explosion-proof motors and supporting manual and automatic dual-mode flow control, it is a mainstream cost-effective model for industrial medium-high pressure and high-temperature precision metering.
2. Core Product Advantages
Optimized Medium-high Pressure Adaptation with Ultimate Cost Performance
Different from the ultra-high pressure heavy-duty positioning of DZ-D2 and ultra-high pressure micro scientific research positioning of DZ-ZR, the DZ-Z focuses on 0–40MPa mainstream industrial medium-high pressure working conditions, covering more than 95% of process pressure requirements in fine chemical, energy additive and industrial high-temperature industries without performance redundancy or insufficient pressure. The 470L/h refined small-flow output balances production capacity and accuracy, realizing continuous stable production and constant proportional precise dosing, ranking as the most cost-effective model for industrial medium-high pressure metering scenarios.
450℃ Ultra-high Temperature Resistance, Long-term Stable Medium Conveying
Breaking the limitations of ordinary metering pumps such as high-temperature softening, deformation and accuracy drift, it stably conveys high-temperature hot-melt additives, reaction stock solutions, heat-conducting media and corrosive fluids. The oxide ceramic plunger maintains no oxidation, no dimensional deformation and no performance attenuation under high temperature. During long-term continuous high-temperature operation, it always keeps stable structure and accurate metering, avoiding frequent failures and shutdown losses of ordinary pumps in high-temperature conditions.
±1% Stable High-precision Metering with Excellent Batch Consistency
Adopting the rigid plunger direct-drive positive displacement principle, there is no deformation error of flexible parts and no pressure loss of hydraulic transmission. Under the superposition of medium-high pressure and high temperature, the repeated metering accuracy is stably maintained at ±1%. The flow output is uniform and pulseless with constant pressure, ensuring extremely small proportioning deviation in multi-batch mass production and meeting strict industrial requirements for process consistency and product qualification rate.
Dual-material Plunger Customization, Full Adaptation to Harsh Media
The industrial-grade dual plunger solution matches diverse working conditions on demand: stainless steel plungers feature high rigidity and economy for mass delivery of conventional high-temperature, high-pressure and weak corrosive media; oxide ceramic plungers with ultra-high hardness and complete chemical inertness resist strong acid, alkali, organic solvent scouring and micro-particle wear. They avoid medium pollution and chemical reaction, serving long-term in harsh working conditions of high corrosion, micro wear, ultra-high temperature and medium-high pressure, extending the service life of vulnerable parts and reducing maintenance costs.
Automatic Centering Low-wear Structure, Minimal Maintenance for Continuous Production
Equipped with a plunger seal transverse automatic centering system, it corrects the plunger reciprocating track in real time to ensure precise coaxial fitting with the seal, eliminating eccentric friction, local wear and high-pressure gap leakage. Compared with ordinary plunger pumps that suffer from easy seal wear, high-pressure leakage and frequent maintenance, this model achieves uniform low-loss operation with simple structure, low failure rate and convenient disassembly, perfectly adapting to 24-hour uninterrupted industrial continuous mass production.
Dual-mode Intelligent Regulation, Adaptable to Flexible Industrial Production
Manual precise fine adjustment is for on-site process commissioning, formula calibration and small-batch parameter optimization; the automatic mode connects seamlessly with industrial PLC systems to realize remote stepless flow regulation, constant-pressure quantitative dosing and unattended intelligent operation. Parameters can be adjusted during operation or shutdown without production interruption and disassembly, adapting to modern industrial flexible mass production with multiple formulas and batches.
Full Stainless Steel Pump Head, Clean & Corrosion-resistant for Multi-industry Processes
304/316 stainless steel pump heads feature high structural strength, 40MPa high-pressure impact resistance, high-temperature oxidation resistance and zero impurity precipitation. 304 stainless steel adapts to general industrial corrosive media with high cost performance; 316 stainless steel with excellent intergranular corrosion resistance and high sanitary grade is suitable for pharmaceutical, food and high-purity chemical medium delivery, covering full-scenario industrial working conditions of corrosion, high temperature, high pressure and cleanliness with strong universality.
3. Working Principle
The DZ-Z plunger metering pump adopts the rigid plunger reciprocating positive displacement medium-high pressure precise conveying principle. The motor drives the precision transmission mechanism to convert rotary motion into stable linear reciprocating motion of the plunger, dynamically changing the volume of the closed pump cavity through high-precision displacement. Cooperating with synchronous precise opening and closing of high-precision inlet and outlet one-way valves, it completes the whole closed-loop process of stable medium negative pressure suction, 40MPa-level medium-high pressure pressurization and small-flow precise quantitative discharge.
With a rigid conveying structure where the plunger and seal are in direct contact with the medium, it has no diaphragm isolation and no hydraulic transmission loss, fundamentally avoiding deformation error and pressure attenuation and ensuring stable transmission efficiency and metering accuracy under high temperature and high pressure. The built-in transverse automatic centering technology corrects operating deviation in real time to ensure long-term coaxial low-wear operation. Customized matching of stainless steel/oxide ceramic plungers and special seals adapts to high-temperature, medium-high pressure, strong corrosion and micro-wear media, maintaining long-term ±1% high-precision steady continuous conveying.
4. Core Technical Parameters
Flow Range: 0–470L/H, refined small-flow stepless adjustment for constant precise mass production dosing;
Pressure Range: 0–40MPa, full-range stable medium-high pressure output for mainstream industrial harsh conditions;
Metering Accuracy: ±1%, steady high precision under superposed high temperature and medium-high pressure;
Medium Temperature Range: ≤450℃, long-term stable delivery of ultra-high temperature media;
Drive Configuration: Two-phase/three-phase standard motor or explosion-proof motor optional for ordinary and explosion-proof workshops;
Control Mode: Manual precise fine adjustment + full-automatic intelligent control;
Pump Head Material: Stainless Steel 304, Stainless Steel 316, high-strength high-temperature resistant, corrosion-resistant and clean;
Plunger Material: Stainless Steel, Oxide Ceramic (high-hardness, wear-resistant, high-temperature resistant, strong corrosion-resistant and chemically inert).
5. Core Application Scenarios
Positioned for medium-high pressure, ultra-high temperature, small-flow, high-precision and cost-effective industrial mass production, the DZ-Z series focuses on standardized industrial continuous precise dosing, completely differentiated from the general large-flow DZ-D, heavy-duty ultra-high pressure DZ-D2 and scientific research micro-flow DZ-ZR models, serving mass-produced harsh working conditions in chemical, energy, environmental protection and pharmaceutical industries.
Small and Medium-sized High-temperature Fine Chemical Mass Production: Continuous precise dosing of high-pressure reactor additives, high-temperature solvents, acid-base regulators and crystallizable media. The 40MPa medium-high pressure adapts to mainstream chemical high-pressure synthesis processes, and 450℃ temperature resistance fits hot-melt media, ensuring stable batch consistency with higher cost performance than ultra-high pressure heavy-duty models.
Energy and Power High-pressure Processes: Quantitative dosing of power plant boiler high-pressure water treatment, high-temperature desulfurization and denitrification chemicals, and circulating water scale and corrosion inhibitors. It adapts to long-term continuous high-temperature and high-pressure operation of power industries with stable performance and low failure rate.
Petrochemical and Oil & Gas Medium-high Pressure Additive Dosing: Precise proportioning and delivery of oilfield medium-high pressure micro injection agents, petrochemical refined high-temperature additives and coal chemical corrosive media. The ceramic plunger resists medium wear and corrosion, reducing equipment maintenance frequency.
Pharmaceutical and Light Industry Clean Mass Production: Quantitative delivery of pharmaceutical intermediate high-temperature and high-pressure synthesis, food additives and high-purity light industry auxiliaries. The 316 stainless steel pump head achieves sterile and pollution-free operation without impurity precipitation, complying with GMP clean production standards for standardized light industry precision mass production.
Explosion-proof High-risk Chemical Working Conditions: Closed conveying of flammable, explosive, volatile and strong corrosive high-risk media under high temperature and medium-high pressure. The optional explosion-proof motor and fully closed rigid structure eliminate medium leakage and friction spark risks, balancing production safety and metering accuracy for continuous mass production in small and medium-sized explosion-proof workshops.
New Material Pilot and Batch Mass Production: Precise delivery of high-temperature and high-pressure synthetic new materials, micro-wear slurries and high-purity media. Stepless small-flow adjustment adapts to multi-parameter process commissioning, and medium-high pressure performance meets batch mass production requirements, balancing commissioning flexibility and production stability.
6. Product Summary
With the core strengths of 470L/H refined small-flow mass production, 40MPa industrial medium-high pressure precise pressure bearing, 450℃ ultra-high temperature medium resistance, ±1% steady precision under high temperature and medium-high pressure, dual-material plunger full harsh media adaptation, automatic centering low-wear long-term operation and high-cost-performance industrial adaptation, the DZ-Z plunger metering pump accurately occupies the segmented field of industrial medium-high pressure and high-temperature precision mass production. It solves the industry pain points of poor accuracy of traditional metering pumps under medium-high pressure, easy failure under high temperature, redundant cost of ultra-high pressure models and weak adaptability of ordinary models. Featuring stable mass production accuracy, low maintenance cost and strong working condition adaptability, it is the preferred economical precision plunger equipment for medium-high pressure and high-temperature precise dosing in fine chemical, energy petrochemical, power, pharmaceutical and light industry.