Xinjiuyang Chemical Feed Pumps - Quality Conquers Every Drop
Xinjiuyang chemical feed pumps play a critical role in process industries where precise, controlled delivery of chemicals is essential. They are used to inject chemicals into process streams-for water treatment, chemical processing, pulp and paper production, oil and gas, and many other applications-ensuring that the proper dosage is met consistently for optimal system performance and safety.
Chemical feed pumps are designed to deliver accurate and repeatable volumes of chemical additives. Their positive displacement mechanisms ensure that even at varying pressures, the flow rate remains consistent. This precision is vital in applications where over- or under-dosing could lead to process inefficiencies, product quality issues, or safety hazards.
Pump Design
ZA series chemical feed pump is a single-stage, single-suction, horizontal foot-supported centrifugal pumps. Designed according to process pumps, they meet the requirements of API610 and ISO5199 and are suitable for conveying clean or lightly contaminated media. The impeller is single suction, radial, closed impeller with impeller mouth ring and pump body mouth ring. The impeller mouth ring and pump body mouth ring can be replaced, saving the cost of spare parts during maintenance. To prevent vaporization of the medium in the vicinity of the shaft seal, the pump cover can be equipped with a cooling chamber to cool the shaft seal chamber. The bearings are lubricated with thin oil and the bearing support has a constant oil cup with automatic oil level adjustment.
Chemical Resistance
Because chemical feed pumps handle aggressive media such as acids, alkalis, and solvents, they are built with materials that provide high resistance to corrosion and chemical attack. Common materials include:
Cast iron/cast steel/carbon steel material
Low cost, good casting performance, but poor corrosion resistance and strength, non-corrosive or weakly corrosive media (clear water, low-temperature oil, neutral wastewater)
01
Stainless steel (304, 316L)
For weakly corrosive media (organic acids, dilute sulfuric acid at room temperature, nitric acid)
02
Duplex steel (2205/2507)
For highly chlorinated media (seawater, bleach), oil and gas containing hydrogen sulfide, hot concentrated brines.
03
High chromium alloy (CR26, CR30)
Containing more than 20% chromium, suitable for resistance to sulfuric acid, phosphoric acid, mixed acid, and particle-containing wear media.
04
Titanium
Passivation film gives it excellent resistance to oxidizing acids and chloride ions, suitable for oxidizing media (nitric acid, chromic acid, sodium hypochlorite) and seawater, chlor-alkali industry, etc.
05
Spectrum Diagram
Application areas
Chemical feed pumps are critical in various sectors:
Water and Wastewater Treatment
For dosing disinfectants, coagulants, and pH adjusters.
Chemical Processing
In processes where precise chemical blending is required.
Pulp and Paper
To add chemicals for bleaching, sizing, or de-inking.
Oil and Gas
For injecting corrosion inhibitors or demulsifiers into pipelines.
Pharmaceuticals
In sterile environments where contamination must be avoided.
Considerations
* Material Selection: Must match the chemical properties (pH, abrasiveness, viscosity) of the fluid.
* Maintenance Needs: Although designed for durability, regular inspection and replacement of diaphragms, seals, and valves are crucial.
* Cost vs. Performance: Higher-grade materials (like PTFE or high-performance alloys) provide superior resistance but come at increased cost.
* Chemical feed pumps are indispensable for processes that require the precise and safe injection of chemicals into production streams. By selecting the appropriate pump type and materials, engineers can ensure high accuracy, long service life, and robust performance even under aggressive conditions. Whether using diaphragm, peristaltic, or gear/piston designs, the key to success lies in understanding the specific requirements of the application and choosing a pump that balances chemical resistance, precision, and reliability.
Accreditation
Claire---- Sales Director
XIN JIU YANG MACHINERY
Wuxi Xinjiuyang Machinery Manufacturing Co., Ltd
Address: No.11 Xinghuo Road, Qianzhou Industrial Park, Huishan District, Wuxi City, Jiangsu Province, China.
WhatsApp: +8613812181780
Website: https://www.xjy-pump.com
Email: sale@jyby.com
