Gasketed Plate
Schmidt® SIGMA Gasketed Plate Heat Exchangers
Plate heat exchangers use corrugated plates stacked between a fixed and movable pressure plate. As virtually all of the material is used for heat transfer, plate heat exchangers can have large amounts of effective heat transfer surface in a small footprint. It is not uncommon that a plate heat exchanger will have the same thermal capacity as a shell and tube five times larger. Our plate heat exchangers incorporate superior design features to ensure long-term performance and customer satisfaction.
Performance Notes
- Unique corrugation pattern pressed onto each plate produces the highest overall heat transfer rate by assuring turbulent flow and excellent fluid distribution across the entire surface
- True counter current flow and high heat transfer rate allows our plate heat exchangers to economically handle close temperature approach requirements
- Highest quality gaskets precisely fit the plate grooves for positive sealing and ease of maintenance
- Superior clip-on gasket design ensures proper fit during closing of the unit
- Double sealing design prevents the possibility of mixing the two process fluids; leak detect feature ensures any leakage is to the atmosphere
- Zinc coated hardware provides long life
- All bolted construction for easier service
- Low volumetric fluid hold-up provides quicker response to heating and cooling demands, while reducing costs for more expensive process fluids
- Readily expanded for greater capacities, or totally new applications
- Available in a variety of plate sizes for industrial, HVAC, power, or food industry applications
Applications
- Compressors
- Fluid Power
- Food and Beverage
- Beverage
- Brewing
- Dairy
- Edible oils
- Food ingredients
- Sugars and starches
- Industrial Markets
- Air dryers
- Automotive plants
- Commercial shipbuilding
- District heating and cooling
- HVAC
- Oil and Gas
- Power Generation
- Power plant equipment
- Process Industries
- Chemical
- Metal processing
- Petrochemical
- Pharmaceuticals, nutraceuticals, and cosmetics
- Refrigeration
- Surface coating
- Wastewater treatment
- Power generators
| Temperature | -40°F – 400°F (-29°C – 200°C) |
| Pressure | Vacuum to 400 psig (30bar) |
| Capacities | In excess of 20,000 GPM (4,500m³/h) |
| Connections | Up to 20 in. (DN500) |
| Plates | |
| Standard | AISI 304 stainless steel (1.4301), AISI 316L stainless steel (1.4404), AISI 316TI stainless steel (1.4571) |
| Exotics | AISI 904 stainless steel, SMO 254, Nickel alloys, pure nickel, Ti and Ti-Pd alloy |
| Thickness | 0.4 mm to 1.15 mm |
| Gaskets | |
| Standard | Nitrile rubber gasket, EPDM rubber, chloroprene rubber |
| Exotics | HNBR, NBR-HT, FPM/FKM, butyl, PTFE coated (SIGMACOAT), food industry certified gasket, AFM hard gaskets, others available |
| Attachment Method | SIGMAFIX adhesive-free gasket, or glued gasket |
| Frame | Painted carbon steel, or stainless steel (solid and clad) |
| Connections | |
| Standard | Studded with option for liner, flanges (ANSI, DIN), food stuff connections |
| Exotics | Ti, SMO, hastelloy, and 904L, others available |
| Codes and Standards | ASME, PED, ABS, LRS, GL, BV, GOST |