1. Classification by Flow Arrangement

2. Classification by Structure and Pressure Rating

• I 6B Type: Type I flow pattern, 0.6 MPa, fully welded

• I 16B Type: Type I flow pattern, 1.6 MPa, fully welded

• I 6T Type: Type I flow pattern, 0.6 MPa, detachable

• I 16T Type: Type I flow pattern, 1.6 MPa, detachable

3. Key Technical Parameters Explained

1. Nominal Heat Exchange Area

This is the effective surface area available for heat transfer between fluids, typically measured in square meters (㎡).
Larger surface areas allow for greater heat transfer capacity.

2. Channel Spacing

Refers to the gap between two adjacent spiral plates, measured in millimeters (mm).

• Small spacing (e.g., 5mm): Ideal for clean liquids, higher heat transfer rates

• Larger spacing (e.g., 10–20mm): Suitable for gas or fluid with suspended solids; reduces clogging

3. Flow Velocity

The actual velocity of fluid within the channel, measured in meters per second (m/s).
Typical design range is 0.5–2.5 m/s:

• Low velocity: May reduce efficiency and promote fouling

• High velocity: Increases pressure drop and energy consumption

4. Flow Rate at 1 m/s

Indicates the processing capacity (in m³/h) when the fluid flows at 1 meter per second.
It’s a standardized reference value for evaluating capacity across different models.

4. Parameter Table

5. Model Selection Recommendations

Conclusion

Spiral Plate Heat Exchangers offer multiple configurations to meet diverse industrial needs. Understanding the differences between Type I, II, III, as well as structural models like B-type and T-type, along with interpreting parameters such as channel spacing, flow velocity, and processing capacity, is key to effective application and selection.

Need a custom solution or detailed specification sheet? Contact our engineering team for a tailored recommendation based on your operating conditions.