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Injection UHT Systems

Product Type(s) : UHT Systems
Description :

The APV® Injection UHT Systems are high-efficiency direct UHT processing solutions that use steam injection to rapidly sterilize products with minimal thermal damage. They are ideal for aseptic processing of milk, cream, flavored beverages, custard and other sensitive liquid foods. These systems help ensure long shelf life without compromising taste, color, or nutrition, all with reliable, consistent performance.

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Direct UHT Technology Designed for Product Integrity and Processing Flexibility

In the dairy and beverage industries, delivering shelf-stable products with clean taste and strong visual appeal takes more than high heat, it takes the right kind of heat. SPX FLOW’s Injection UHT Systems use direct thermal processing to achieve exceptional quality and efficiency. They are ideal for milk, flavored beverages, custard, cream and other low- to medium-viscosity products.

Today’s food and beverage processors need to overcome critical challenges:

  • Avoiding heat damage that can impact flavor, color, or nutritional value
  • Maximizing runtime by reducing fouling and CIP frequency
  • Running diverse product lines with consistent results and easy changeovers

Why APV® Injection UHT Systems?

Built on decades of thermal processing expertise, APV Injection UHT systems are designed for rapid, gentle processing that maintains product quality while minimizing operational downtime. They deliver:

  • Fast heating (~300°C/sec) for optimal taste and minimal degradation
  • Instantaneous flash cooling for flavor and aroma preservation
  • Precise thermal control with uniform product treatment
  • Efficient spore kill with very low C values* for excellent shelf stability
  • Low fouling and extended CIP intervals for increased uptime
  • Energy-efficient operation with lower total cost compared to indirect systems
  • Broad product compatibility of low- to medium-viscosity products from milk, plant-based to specialty beverages, ice cream mix, flavored drinks and custards
  • Operator-Friendly Design with usability in mind, the system features intuitive controls and automated cleaning functions, ensuring easy day-to-day operation and simplified maintenance.
  • Pre-assembled and factory-tested for fast deployment
  • Available with compliance options including ASME, PMO, and 3-A
  • Low on maintenance and energy costs, supporting long-term operational efficiency
  • Supported by pilot UHT plants for testing and product development
  • Backed by SPX FLOW’s global service network, including training, preventive maintenance, spare parts, and remote diagnostics, ensuring ongoing performance, uptime and ROI.

Distinctive Advantages

Engineered for Performance: The APV Steam Injector Advantage

At the core of the Injection UHT System is the APV Steam Injector — a purpose-built component engineered for thermal precision and reliability.

Key advantages include:

  • Advanced Processing: Innovative automation and controls deliver high food safety and process consistency
  • PEEK Nozzle Technology: Prevents direct contact between metal and product using specialized nozzles, reducing fouling and burn-on risk
  • Simplified Design: High mixing efficiency ensures rapid and even heat transfer
  • Stepless Steam Gap Adjustment: Allows real-time adjustment for precise heating control and greater flexibility
  • Silent Operation: Uniquely designed for the lowest noise levels in its class

This injector technology supports longer run times, better product protection and simplified maintenance — reinforcing the system’s performance edge.

Product Applications

  • UHT milk and flavored milk
  • Cream, coffee creamers and custards
  • Plant-based beverages (oat, almond, soy)
  • Ice cream mix and milkshake base
  • Nutritional and specialty drinks

Theory of Operation

Designed for high throughput and reliable aseptic processing, this UHT system meets rigorous standards for product quality and food safety in low- to medium-viscosity products, including milk, flavored milk, cream and plant-based beverages.

The Injection UHT System operates on the principle of direct UHT processing. During the process:

  1. Culinary-grade steam is injected directly into the product through a specially engineered nozzle. The steam is free from any off-flavors that could alter the taste of the product.
  2. The product is instantly and evenly heated to sterilization temperatures (~138–142°C), achieving a high microbial kill rate.
  3. It is then transferred into a flash chamber where the injected steam is rapidly evaporated, cooling the product back down and removing excess moisture.
  4. The result is a commercially sterile product that retains its natural taste, color and nutrients — making it ideal for aseptic food processing applications.

This precise thermal control enables a gentle process with maximum efficiency and minimal degradation, perfectly suited for sensitive applications like UHT processing milk, flavored dairy drinks and premium beverages.

Product Details

  • Specifications
  • Options

Our APV Injection UHT Systems are engineered to deliver precision, efficiency and versatility in ultra high temperature (UHT) processing. Below is an in-depth look at the system’s specifications that make it ideal for aseptic processing:

Processing capacity: 2,000 – 30,000 L/h (550 – 8,000 U.S. gal/h)
Product temperature profile: 5–75–142–75–25°C (41–167–288–167–77°F)
Viscosity range: Low to medium viscosity
Heat regeneration: ~85%
Pressure tolerance: Up to 60 bar

Our APV Injection UHT Systems come with a range of premium options to further customize and optimize your aseptic processing operations:

  • Designed according to ASME, PMO and 3A
    The system is optionally designed to comply with ASME, PMO and 3A accommodating regulatory requirements for global markets
  • Energy Efficiency
    The system is equipped with advanced energy-saving features:
  • Aseptic Pulsation Dampener
    The aseptic pulsation dampener reduces pressure fluctuations within the system, ensuring steady product flow and maintaining an aseptic system and product integrity. By stabilizing pressure, this option enhances product safety and consistency, especially when dealing with delicate or high-viscosity products.
    • Non-Aseptic Cooler (NAC): This patented design achieves up to 67% energy recovery during sterilization and cleaning processes, significantly reducing operational costs.
    • Insulation: The infusion chamber
    • Condensers with Energy Recovery: A set of condensers enables an additional 12% energy recovery, which can be reused internally or externally within the UHT plant, enhancing overall energy efficiency.
    • Sterile Water Unit: This feature produces sterile water for the homogenizer, eliminating the need for condensate and contributing to resource optimization.
    • Hibernation Mode: During waiting times, the intelligent energy reduction mode saves over 50% in energy consumption, making the system extremely efficient even when not in active production.

Frequently Asked Questions

Direct steam injection introduces culinary-grade steam directly into the product stream for instant heating to sterilization temperatures. It’s followed by flash cooling under vacuum to remove excess water and preserve flavor, color and aroma. This process achieves commercial sterility with minimal thermal damage, making it ideal for aseptic food processing and UHT processing milk, cream and other sensitive products.

The APV Injection UHT System delivers steam directly into the product, while the APV infusion UHT system exposes the product to a steam atmosphere. Injection offers faster heating and lower hold-up volume, though it is slightly less gentle than infusion. It’s particularly well suited for heat-sensitive, viscous, or flavored products.

The APV Injection UHT System handles a wide range of low- to medium-viscosity products including milk, cream, flavored milk, plant-based beverages, ice cream mix, custards, coffee drinks and milkshakes. Its fast heating and flash cooling preserve flavor and aroma, even in volatile or delicate formulations.

The APV steam injector’s PEEK nozzle technology eliminates metal-to-product contact, minimizing burn-on and fouling. Combined with efficient heat transfer and hygienic design, the system supports long production runs between CIP cycles.

Yes. The APV Injection UHT System supports automated cleaning-in-place and sterilization-in-place and integrates seamlessly with aseptic filling lines, ensuring end-to-end sterility.

The APV Injection system can be configured to meet ASME, 3-A, and PMO hygienic design standards, making it suitable for regulated dairy and beverage operations worldwide.

Injection UHT systems typically offer lower total cost of ownership due to reduced energy use, fewer cleaning cycles, faster changeovers and minimal maintenance requirements.

Yes. Our APV pilot UHT systems and global Innovation Centers are available for product trials, recipe validation, and process optimization to accelerate scale-up and reduce development risk.

Visit our APV UHT Processing Technology page to explore our full range of systems, including plate, tubular, infusion and injection technologies.

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