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
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X Series – High Performance Plates
For industrial and HVAC processes with clean fluids.-
Corrugation depth: 2.0 – 3.0 mm
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Options: hard & soft (fishbone pattern)
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Gaskets: SIGMAFIX (glue-free) or glued
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7 Series – Universal Plates
For industrial, HVAC, and food applications.-
Corrugation depth: 2.5 – 4.0 mm
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Options: hard & soft
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Gaskets: SIGMAFIX or glued
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2 Series – Free Flow Plates
For viscous, fibrous, or pulpy media.-
Example: fruit juices with pulp
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Corrugation depth: 4.5 – 5.5 mm
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Various materials and gaskets available
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SIGMADUAL – Semi-Welded Plates
Combination of welded and gasketed channels.-
For aggressive media and ammonia
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High safety and reliability
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Easy maintenance: every second plate accessible
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Pressure: up to 35 bar, temperature up to 200 °C
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SIGMATWIN – Double-Wall Plates
Two plates pressed together for maximum leak protection.-
Any leakage drains externally, preventing fluid mixing
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For food, pharmaceutical, and biotech sectors
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FDA-compliant gaskets (NBR, EPDM, Viton)
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Thickness: 2×0.3 mm or 2×0.4 mm
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Flow capacity: up to 320 m³/h
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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
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Plates:
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Stainless steel: AISI 304/304L, 316/316L, 316Ti
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Alloys: Hastelloy, Incoloy 825, Inconel, Monel, SMO 254
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Non-ferrous metals: Nickel, Tantalum
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Titanium, Titanium-Pd
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Other materials available on request
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Gaskets:
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NBR, EPDM, FPM (Viton), chloroprene, butyl rubber, EPDM-HT
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For food & pharma applications — FDA-compliant materials
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