Coil

Material Options:

Galvanized Steel Coil:

Made of high-grade seamless low carbon steel tubes, subjected to three 2.5 MPa pressure tests.
Hot-dip galvanized in a high-temperature molten bath for excellent corrosion protection.
Delivers excellent pressure resistance, stable heat transfer, and low material costs.
Requires a completely sealed circulation system motor to prevent air entry, which can impact performance.
Stainless Steel Coil:

Made of stainless steel subjected to a 2.5 MPa pressure test.
High corrosion resistance, adapted for harsh uses or harsh environments.
Copper Tube Coil (applied mainly to closed circuit cooling towers like BNX, but also defined for context):

Does excellent heat transfer capacity and greater salvage value.
Does higher anti-freezing specifications because copper does not suit well for application under low temperature.
Closed Circuit Cooling Tower Context

For closed circuit cooling towers (e.g., BNX), red copper or galvanized steel can also be employed to make coils, in addition to stainless steel, to ensure versatility based on application needs.
Evaporative Condenser Context:

For evaporative condensers like the ZNX, the best recommendations are stainless steel and galvanized steel due to their resistance to corrosion in evaporative environments.
Coil Tube Types:

Elliptical Tube: Offers optimum surface area for heat transfer with space-saving designs.
Finned Tube: Improves heat exchange effectiveness by adding fins to tube surface.
Wave Tube: Enhances turbulence to offer better heat transfer.
Compound Type Coils: Combines multiple tube types for unique performance.
Thin Plate Heat Exchanger (cited for context):

A standalone product manufactured by HENGAN, employing advanced technology to attain high efficiency.
Effective scaling control but requires high-quality circulating water for performance maintenance.