Home ProductsNews&DrawingsContact Us
Home > News&Drawings > Frequent liquid leakage, cracking and corrosion of dosing tanks? This HDPE dosing tank eliminates your maintenance headaches once and for all.

Frequent liquid leakage, cracking and corrosion of dosing tanks? This HDPE dosing tank eliminates your maintenance headaches once and for all.

Jul. 22, 2026

640.jpg

In daily operation and maintenance of water treatment, wastewater treatment and chemical dosing work, many practitioners have encountered troublesome issues: dosing tanks suffer from shell aging and cracking after short-term service, tank wall leakage caused by chemical corrosion, and slow seepage at assembly joints.

This not only results in chemical waste and floor erosion, but leaked chemicals also bring potential safety hazards. Frequent tank replacement and production shutdown for maintenance further push up operating costs.

If you are troubled by such problems, take a look at Chengda PE Dosing Tank. Fully optimized in material, manufacturing process and detailed design, it fundamentally avoids common failures including liquid leakage, corrosion and cracking.


Ⅰ.Premium HDPE Base Material, Corrosion & Aging Resistance, Suitable for Various Chemical Environments

This dosing tank is integrally manufactured from food-grade HDPE (High-Density Polyethylene) raw material. It features outstanding chemical stability and excellent corrosion resistance against various chemicals commonly used in water treatment, including flocculants, disinfectants, acid and alkali regulators, preventing inner wall damage caused by chemical erosion.

In addition, the material boasts high density and superior structural strength with good vibration and impact resistance, as well as reliable heat and freeze resistance. Whether exposed to temperature fluctuations outdoors or used for long-term chemical storage inside pump rooms, it slows down material aging and greatly extends tank service life. Frequent replacement of chemical storage containers is avoided, bringing better cost efficiency for long-term operation.


Ⅱ.Integral Molding Technology, Eliminating Hidden Risks of Joint Seepage

Many low-cost chemical storage barrels on the market are produced by splicing and bonding. Joints become the weakest points. After long-term immersion in liquid chemicals and extrusion by hydraulic pressure, the bonded areas tend to debond and leak easily.

This series of dosing tanks adopts two mature molding processes. Specifications of 40L, 60L, 100L and 200L adopt blow molding, suitable for medium and small-volume production with high molding efficiency. The 300L and 500L versions adopt rotational molding, delivering uniform wall thickness and higher structural strength for large-size tanks.

Both processes enable one-piece integral molding without bonded seams. The tank body features outstanding structural integrity, greatly reducing cracking risks and offering excellent sealing performance. Common failures such as joint leakage are completely eliminated for reliable chemical storage.


Ⅲ.Standard External Scale Marks for Precise & Controllable Chemical Dosing

When preparing chemicals and calculating consumption on a daily basis, many unmarked storage barrels require operators to estimate volumes by experience. This may lead to unbalanced chemical ratios that compromise water treatment results, or involve troublesome repeated opening of the tank for measurement.

This dosing tank is pre-fitted with clear graduated markings on the outer wall. The remaining liquid volume inside can be read directly. Operators can easily check readings during chemical preparation, refilling and inventory counting. It enables precise control over dosing volume, stabilizes chemical proportions within the water treatment system and reduces material waste caused by excessive chemical addition.


Ⅳ.Full Range of Specifications, Suitable for Diverse Application Scenarios

The product is available in six mainstream volume specifications for selection as required:

ModelOverall Dimensions (mm)Molding ProcessAvailable Colors
40L360×460Blow MoldingYellow, White
60L405×506Blow MoldingYellow, White
100L440×640Blow MoldingYellow, White
200L560×920Blow MoldingYellow, White
300L660×1000Rotational MoldingYellow, White
500L800×1150Rotational MoldingYellow, White

Small-capacity models from 40L to 200L feature compact size and small footprint, ideal for small water purification equipment, laboratory water treatment and small commercial water supply systems. The large-capacity 300L and 500L tanks provide sufficient chemical storage capacity, suitable for large-scale industrial wastewater treatment and municipal sewage projects. Yellow and white color options are available to meet the visual management requirements of different factories.

Although chemical storage tanks seem to be auxiliary components within water treatment systems, leakage or cracking failures will disrupt stable operation of the whole system and cause extra losses in safety and costs.

Chengda PE Dosing Tanks adopt reliable raw materials, proven one-piece molding technology and practical graduated design, balancing durability and ease of use. They are a reliable choice for procurement of new projects or replacement of aged and damaged dosing tanks.

Please leave us a message if you need more details about model selection and supply.


Back To News
Share: