API Schmidt Heat Exchangers and Spare Parts
Gaskets for SIGMA® Plate Heat Exchangers
Gaskets for SIGMA® Plate Heat Exchangers
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Product Type: Spare Parts for Plate Heat Exchangers
Description:
SIGMA® gaskets are original sealing solutions that ensure leak-tightness and reliable operation of plate heat exchangers. They prevent media mixing, reduce leakage risks, and guarantee stable performance even under demanding conditions.
Types of Gaskets
SIGMAFIX – patented glue-free clip system.
- Quick and easy replacement thanks to clip fastening
- High resistance against sticking and displacement
- Reliable sealing due to large contact surface
SIGMACOAT – gaskets with PTFE coating.
- Base: NBR or EPDM with protective PTFE layer
- Excellent resistance to aggressive media
- Operating temperature: up to +160 °C (320 °F)
- Extended service life and reduced downtime
Glued Gaskets
- Fixed with automated adhesive application technology
- High strength and adhesion reliability
- Suitable for standard operating conditions
Double Gasket Boundary
- Prevents media mixing
- In case of leakage, fluids are safely discharged outward and can be detected immediately
Specifications
| Gasket Type | Material | Temperature Range | Features |
|---|---|---|---|
| SIGMAFIX | NBR, EPDM, Viton | -20…+150 °C | Glue-free clip system, quick replacement |
| SIGMACOAT | NBR/PTFE, EPDM/PTFE | up to +160 °C | PTFE coating for aggressive media |
| Glued | NBR, EPDM, Viton | -20…+150 °C | Automated gluing, strong adhesion |
| Double gasket | NBR, EPDM | -20…+150 °C | Double sealing contour, leakage detection |
Gasket Materials
- NBR (Nitrile Rubber) – resistant to oils and fuels
- EPDM – suitable for water, steam, and food applications
- FPM (Viton) – for high-temperature and chemically aggressive media
- PTFE – excellent protection against aggressive substances
- Special materials: AFM 34, Sil C-4400 for special applications