Closed-form expression

Recommended Thickness

Applicable Span

Advantages, Features, and Application Scope

Stainless steel frame + PC polycarbonate sheet

Lightweight yet highly tensile, tough and safe;

Excellent corrosion resistance, superb weatherability, UV protection, superior light transmission, and an extended service life.

Applicable to grates, grit chambers, MBR membrane tanks, thickening tanks, dewatering machines, drying machines, material silos, and more.

Fiberglass Grating Cover板

Lightweight and high-strength, with excellent corrosion resistance.

Overall molded, eliminating the need for on-site fabrication and ensuring easy installation.

Applicable to vortex grit chambers, etc.

Fiberglass Reinforced Plastic Arched Cover板

Similarly, it can meet the load-bearing requirements without the need for a skeleton.

Applicable to anaerobic tanks, etc.

Anti-suspension Film

Resolved the corrosion issue caused by the contact between steel structures and corrosive gases, ensuring excellent durability.

The membrane material is lightweight and boasts high tensile strength, making it ideal for large-span pool structures.

Beautifully designed, ensuring a long-lasting and attractive appearance.

Applicable to sedimentation tanks, etc.

Elastic materials such as PVC soft boards

Highly flexible, highly processable, and easy to install.

Low cost and highly corrosion-resistant.

Applicable equipment connection areas, such as the sludge scraper's moving area and the overhead crane passage area above the plate-and-frame press machine.

Material

Advantages

Drawbacks

Scope of Application

Costing Level

Organic Glass Steel

(1) Lightweight and high-strength;
(2) Excellent corrosion resistance;
(3) Excellent electrical and thermal insulation properties;
(4) Excellent fluid performance: Smooth inner walls minimize frictional resistance, resulting in low transportation energy consumption.
(5) Excellent design flexibility

(1) Low elastic modulus;
(2) Limited temperature resistance; long-term thermal stability is lower than that of stainless steel.
(3) Outdoor use may lead to aging, requiring UV-resistant treatment.
(4) The fiberglass duct connection parts require on-site pasting, demanding high standards for construction quality management.

Suitable for use in highly corrosive environments, with an applicable operating temperature range of -10°C to 50°C. Not intended for use in pipelines located downstream of ion-generating devices.

Stainless Steel 304

(1) Exhibits excellent heat resistance and boasts superior mechanical strength, allowing for long-term use in environments exceeding 130°C.

(2) Exhibits stable corrosion resistance in mildly corrosive environments, requiring minimal maintenance.

(2) Excellent structural integrity and high strength;

(3) On-site construction is minimally affected by environmental factors.

(1) Corrosion resistance is relatively poor among commonly used duct materials.

(2) Prone to corrosion in waste gases containing chloride ions and corrosive industrial atmospheres.

(3) The machining precision requirements are higher than those for fiberglass.

Suitable for odor gases that are free of chloride ions and have low corrosivity.

In the middle,

The ground-level circular pipe is slightly taller than the fiberglass one.

The underground factory piping is slightly lower than the fiberglass one.

Stainless Steel 361

(1) Exhibits excellent resistance to heat, acid corrosion, and alkali erosion; significantly more resistant to corrosion compared to 304 stainless steel.

(2) Excellent structural integrity and high strength;

(3) On-site construction is minimally affected by environmental factors.

(1) High costs;

(2) Highly susceptible to corrosion in waste gases containing high concentrations of chloride ions and in corrosive industrial atmospheric environments.

(3) The machining precision requirements are higher than those for fiberglass.

Suitable for odor gases that are free of chloride ions and have low corrosivity.