Gentle handling of particle-rich fluids – high fouling resistance against the toughest of applications
About
Sigma Free Flow Plate Heat Exchangers are specifically engineered for viscous, fibrous, or solid-loaded fluids that require gentle treatment and uninterrupted flow.
Their open-channel design prevents fouling and ensures high-efficiency heat transfer without compromising product quality – even in sensitive food or biotech applications.
Key Features
- Contact-free plate channels with a wide gap
- High fouling resistance whilst maintinging efficiency
- Built for viscous and particle-laden fluids
- Gentle product treatment, no shear damage
- Easy to clean, inspect, and maintain
- Compatible with hygienic applications (CIP-friendly)
- Available with specialized plate materials and gasket options
- Bridges the gap between plate & tubular heat exchangers
Applications & Benefits
Free Flow technology is the optimal solution for:
- Cooling and heating of sauces, ketchup, honey and caramel
- Processing of pudding, poolish, dough, and emulsions
- Unfiltered wort cooling or preheating
- Juice and beverages with pulp or particles
- Blood, hemoglobin, and yeast-rich fluids
- Wastewater and blanching water heat recovery
- Hydroculture sterilization processes
The Free Flow plate design allows unrestricted flow, making these exchangers ideal for systems where clogging is a risk and cleanability is crucial.
Sustainability in Action
By using Free Flow exchangers, your operation can:
- Reclaim and repurpose heat from waste or by-products
- Lower maintenance intervals and energy usage
- Reduce product loss due to clogging or overprocessing
- Meet ESG and CSRD compliance requirements
- Accelerate toward a net-zero, low-footprint future
Working fouling-sensitive products?
Let us help you configure the ideal Sigma Free Flow Plate Heat Exchanger for your application – and turn thermal challenges into sustainable gains.