API Schmidt Heat Exchangers and Spare Parts
Plates for SIGMA® Gasketed Plate Heat Exchangers
Plates for SIGMA® Gasketed Plate Heat Exchangers
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Product Type: Spare Parts for Gasketed Plate Heat Exchangers
Description:
SIGMA® plates are original spare parts ensuring efficiency, durability, and safety of plate heat exchangers. They are used for replacing worn components, upgrading units, or adapting equipment to new operating conditions. The portfolio covers different plate series for food, chemical, pharmaceutical industries, energy, and HVAC.
Plate Types
X Series – High Performance Plates
For industrial and HVAC processes with clean fluids.Corrugation depth: 2.0 – 3.0 mm
Options: hard & soft (fishbone pattern)
Gaskets: SIGMAFIX (glue-free) or glued
7 Series – Universal Plates
For industrial, HVAC, and food applications.Corrugation depth: 2.5 – 4.0 mm
Options: hard & soft
Gaskets: SIGMAFIX or glued
2 Series – Free Flow Plates
For viscous, fibrous, or pulpy media.Example: fruit juices with pulp
Corrugation depth: 4.5 – 5.5 mm
Various materials and gaskets available
SIGMADUAL – Semi-Welded Plates
Combination of welded and gasketed channels.For aggressive media and ammonia
High safety and reliability
Easy maintenance: every second plate accessible
Pressure: up to 35 bar, temperature up to 200 °C
SIGMATWIN – Double-Wall Plates
Two plates pressed together for maximum leak protection.Any leakage drains externally, preventing fluid mixing
For food, pharmaceutical, and biotech sectors
FDA-compliant gaskets (NBR, EPDM, Viton)
Thickness: 2×0.3 mm or 2×0.4 mm
Flow capacity: up to 320 m³/h
Specifications
| Plate type | Corrugation depth | Application | Gasket system |
|---|---|---|---|
| X Series | 2.0 – 3.0 mm | Clean liquids, HVAC, industrial processes | SIGMAFIX / glued |
| 7 Series | 2.5 – 4.0 mm | Universal use: food, HVAC, industry | SIGMAFIX / glued |
| 2 Series | 4.5 – 5.5 mm | Viscous & fibrous media, juices with pulp | SIGMAFIX / glued |
| SIGMADUAL | Model dependent | Ammonia, aggressive media | Semi-welded + SIGMAFIX |
| SIGMATWIN | 2×0.3 / 2×0.4 mm | Food, pharma, biotech | FDA-compliant gaskets |
Plate and Gasket Materials
Plates:
Stainless steel: AISI 304/304L, 316/316L, 316Ti
Alloys: Hastelloy, Incoloy 825, Inconel, Monel, SMO 254
Non-ferrous metals: Nickel, Tantalum
Titanium, Titanium-Pd
Other materials available on request
Gaskets:
NBR, EPDM, FPM (Viton), chloroprene, butyl rubber, EPDM-HT
For food & pharma applications — FDA-compliant materials