We offer a full range of replacements for API Schmidt Sigma plate heat exchangers, with dimensions and interfaces fully compatible with the original equipment manufacturer (OEM) and equivalent performance. They are resistant to high temperatures and pressures and are available in corrosion-resistant materials such as Hastelloy, titanium, and SMO 254. We offer fast delivery, ample stock, and free selection support to help you quickly and cost-effectively replace your equipment.
Sigma Heat Exchanger Plates with Gaskets
The Sigma Gasketed Plate Heat Exchanger consists of stacked corrugated plates, fixed pressure plates, and movable pressure plates. Since almost all materials are used for heat transfer, plate heat exchangers can typically achieve up to five times the heat transfer of shell-and-tube heat exchangers. With its compact design and output power range of 125 kW, 130 kW, 135 kW, 150 kW to 210 kW, the Sigma Gasketed Plate Heat Exchanger covers a wide range of demanding applications from residential to industrial use, operating stably even in high-temperature, high-pressure, and highly corrosive environments.
Extreme Temperature and Pressure: Withstands temperatures up to 250°C and pressures up to 25 bar.
Strong Corrosion Resistance: Available in a variety of high-performance specialty alloys, including Hastelloy C-276, Titanium, and SMO 254 to handle highly corrosive media.
Anti-clogging Capability: Sigma Free Flow Plate Heat Exchangers are ideal for handling highly viscous fluids containing particulate matter, effectively preventing media clogging and facilitating cleaning.

The unique corrugated design on the plates ensures optimal fluid distribution across the entire surface of the plate heat exchanger, achieving maximum overall heat transfer rate.
The counter-flow design principle and high heat transfer coefficient enable Sigma plate heat exchangers to operate cost-effectively even under extreme temperature variations.
High-quality gaskets ensure reliable sealing and easy maintenance.
The compact design and low packing density ensure rapid response to temperature fluctuations while reducing the consumption of expensive process fluids.
The flexible adjustment of the plate count offers a key advantage for optimized design.
Premium materials and flexible configurations for demanding industrial applications.