As the core component of plate heat exchangers, heat transfer plates are mostly stamped from corrosion-resistant materials such as stainless steel and titanium alloy. Classified by different corrugation structures and flow channel sizes, plate models determine the equipment’s heat exchange efficiency, operating resistance and applicable working conditions. Universal industrial plates are brand-independent and mainly divided into three series for diverse civil and industrial scenarios.

1. Mainstream Plate Models and Characteristics

1.1 Herringbone Corrugated Plates (H Series) – Universal High-efficiency Type

As the most common basic plate type, H-series plates with V-shaped staggered corrugations enhance fluid turbulence, featuring high heat transfer efficiency, stable structure and good pressure resistance. They are suitable for conventional water-water and steam-water heat exchange. Models including small H5/H10, medium H35/H60 and large H100/H200 adapt to precision temperature control, building air conditioning and municipal heating. Their main drawback is high flow resistance, making them unsuitable for particle-containing or high-viscosity clog-prone media.

1.2 Inclined Corrugated Plates (L Series) – Low-resistance & Energy-saving Type

With shallow inclined corrugations, L-series plates feature smooth flow channels, low pressure drop and low energy consumption. Main models L20, L40 and L80 are designed for working conditions with large flow rate, low temperature difference and low pressure drop. Widely used in central air conditioning circulation and industrial cooling water systems, they are often combined with H-series plates to balance heat exchange efficiency and operating resistance.

1.3 Special Functional Plates (M Series) – Anti-blocking Type

M-series plates are designed for harsh working conditions with excellent anti-blocking and corrosion resistance. Wide-channel models M10 and M20 with large channel gaps allow the passage of fibrous and particle-containing media, suitable for chemical and sewage treatment industries. Spherical corrugated plates have smooth surfaces without retention dead corners, easy to clean, meeting hygienic standards for food and pharmaceutical industries and adapting to high-viscosity and heat-sensitive fluids.

2. Universal Model Coding Rules

The universal industrial coding rule is based onplate series + single plate heat transfer area. For example, the numbers in BR0.2 and BR0.5 represent the effective heat transfer area per square meter. Prefixes H, L and M correspond to high-efficiency herringbone, low-resistance inclined corrugated and anti-blocking special plates respectively, for quick performance and scenario identification.

3. Conclusion

The three mainstream plate series have distinct positioning: H-series for high-efficiency conventional clean water heat exchange, L-series for energy-saving large-flow working conditions, and M-series for complex special media. In practical selection, plates can be used alone or in combination according to medium type, flow rate, pressure drop and heat exchange requirements to realize efficient and stable equipment operation.