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 Beverages
Beverage
Brewing
Dairy
Edible Oils
Food Ingredients
Sugars and Starches
Industrial Equipment
Air Dryers
Automotive Plants
Commercial Shipbuilding
District Heating and Cooling
HVAC & Industrial Refrigeration
Oil and Gas
Power Generation
Power Plant Equipment
Process Industries
Chemical
Metal Processing
Petrochemical
Pharmaceuticals
Refrigeration
Surface Coating
Wastewater Treatment
Power Generators
Data Centers
Air-Cooled
Direct-to-Chip
Edge
Immersion

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