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Jiangsu Syeelai Environmental Technology Co., Ltd. is a Custom Engineering Solutions Manufacturer based in Yixing, Jiangsu, China. We design and build corrosion-resistant filtration, transfer, mixing and dosing systems for chemical processing, water treatment, electroplating, pharmaceutical and new-energy applications, with installation and commissioning support included in the project scope.
We manufacture the core equipment inside these engineered systems rather than acting as a trading intermediary. Our product platform includes liquid mixers, metering pumps, magnetic drive pumps, self-priming pumps, vertical idling-resistant pumps, hose pumps, UPVC filters, valves and pulsation dampers. Because these components are produced within our own factory, we can adapt housings, flange connections, wetted materials and control interfaces to the actual duty.
The Engineering Solutions category is organised into two process-oriented families. Each family starts from the customer’s working point and combines our pump, mixer, filter and valve range into a skid, tank-mounted unit or filter loop.
Integrated pump-filter machines for electroplating, etching, electroless nickel, chromic acid and surface treatment lines. PP/PVDF housings resist high temperatures and aggressive corrosion, while filter media remove micron-level suspended impurities. Transfer duty is handled by magnetic drive pumps, self-priming pumps or vertical idling-resistant pumps where dry-run resistance is required.
Storage, mixing, delivery and automated control packages for water treatment and industrial production. Precision metering pumps and sensors deliver quantified chemical doses based on preset logic or real-time feedback, and the modular layout supports simultaneous handling of coagulants, pH adjusters, phosphates and other chemicals.
| Solution family | Typical duty | Core equipment | Customization focus |
|---|---|---|---|
| Chemical Filtration and Transfer Solution | Electroplating, etching, electroless nickel, chromic acid, surface treatment | Filter machines, magnetic drive pumps, self-priming pumps, vertical idling-resistant pumps, UPVC filters | Tank size, filter area, media grade, circulation flow, discharge head and corrosion duty |
| Chemical Mixing and Dosing Solution | Water treatment, boiler feed, circulating cooling water, acid-base neutralisation, chemical preparation | Liquid mixers, metering pumps, valves, back pressure valves, pulsation dampers, control panels | Skid layout, number of dosing heads, chemical concentration, feedback control, alarm and communication |
We do not treat a filter machine or dosing skid as a catalogue item. Our proposal is based on the medium composition, temperature, solids loading, working pressure, required flow and control strategy. Once those values are fixed, we configure the pump size, motor power, filter area, mixing intensity, pipe routing and instrumentation required to meet the process target.
The same approach applies to non-standard chemical filtration systems and customised dosing devices. We fabricate tanks, frames and connections to suit the existing battery limits and process needs.
Dosing solutions are built around our Metering Pump range, which includes mechanical diaphragm, plunger and hydraulic diaphragm versions. The system can operate from manual set-points, proportional control, or feedback from pH, ORP, conductivity, flow or level sensors.
Control panels provide local start-stop, alarm handling and remote status via the line PLC or DCS. We supply interface definitions, wiring termination requirements and signal schedules so the dosing package can be commissioned without rework on site.
A full-chain quality inspection system covers raw material sampling and verification, fixed-point patrol inspection during production, and full-performance verification of finished products. Complete inspection data is maintained throughout the process to support traceability from source to delivery.
Before shipment, finished systems are checked for performance and completeness. We use industrial-grade protective packaging that is adapted to multi-scenario transportation and loading-unloading needs, and we synchronise logistics nodes so delivery can be followed from our factory to your site.
To prepare an accurate configuration and quotation, we need the project data that defines the working point. A complete input set shortens the engineering cycle and reduces change orders during design review.
Our support covers remote diagnosis, on-site guidance and after-sales maintenance. For each project we establish a dedicated service file and track the operating status of the equipment so the production line can continue running stably.
Installation and commissioning are part of the engineered solution scope for non-standard systems. We also provide operation documentation, training on routine maintenance, and spare parts support for pumps, seals, diaphragms and sensors.
The most important inputs are fluid composition, concentration, temperature, required flow, discharge head, filtration target or dosing rates, tank dimensions, power supply and control interface. With these values we can size the pump, filter or mixing package and provide a skid layout.
Yes. The modular design supports multiple metering pump heads on a common skid, with separate suction and injection points. The control logic can dose coagulants, pH adjusters and other chemicals according to the process sequence.
Our filter machines use PP or PVDF housings depending on the chemical and temperature. Pump wetted materials are matched to the specific acid, alkali or solvent, and seal-less pump types such as magnetic drive pumps eliminate leakage risks on corrosive duty.
For non-standard chemical filtration systems and customised dosing devices, we provide design, installation and commissioning services. Our support also includes on-site guidance and remote diagnosis after start-up.
We apply a full-chain inspection system covering raw material verification, patrol inspection during production and full-performance verification of finished products. Inspection data is retained for traceability from our factory to delivery.
We provide 24/7 responsive service with remote diagnosis, on-site guidance and after-sales maintenance. A dedicated service file is set up for each project so equipment status can be tracked proactively.