APV HT+/VT+ Series

APV VT+/HT+ Series scraped-surface heat exchangers are specified for thermal processes involving products that are difficult to handle with conventional exchanger technologies. Typical duties include heating, cooling, crystallization, pasteurization and sterilization. Products can be medium to highly viscous, contain particles, exhibit thixotropic behaviour or be sensitive to heat exposure. Applications include soups, spreads, sauces, creams, soft cheeses, chocolate, fruit and vegetable purées, baby foods, fats and oils.

The series maintains heat transfer by continuously removing product from the heat-transfer surface. This is operationally important when viscous or fouling products would otherwise form a layer that increases thermal resistance and progressively reduces exchanger efficiency. APV positions the platform for harsh conditions where alternative exchanger technologies may fail or become less efficient over extended operating periods. The resulting configuration supports sustained thermal processing while also addressing availability, cleaning and product-quality requirements.

Each VT+/HT+ unit is constructed around a single cylinder, with multiple cylinders installable on a frame when additional processing capacity is required. Shaft diameters of 76, 115 or 140 mm are specified, while the standard unit is supported by stainless-steel frames. The HT+ configuration provides a rigid horizontal platform that can be extended to as many as six cylinders, while VT+ uses a vertical arrangement with a rotatable cylinder to improve maintenance access and minimize floor-space requirements. The series supports differential pressures up to 25 bar.

Capacity can reach approximately 10,000 l/h, but actual throughput depends on the product, temperature, specific process requirements and number of installed cylinders. Selection should therefore be verified against product viscosity, particle characteristics, thermal duty, pressure, required capacity and installation constraints rather than nominal series capability alone. Horizontal and vertical configurations provide flexibility when matching equipment to existing plant layouts. Maintenance accessibility and CIP/SIP capability further support lifecycle performance in sanitary production environments.