Plate materials and the gasket materials mainly depend on the corrosive properties and temperatures of the cold exchange medium and the heat exchange medium. The plate heat exchanger's plate materials and corresponding applicable places are given in Table 1 and its gasket materials and corresponding applicable places in Table 2 for your reference.
Material name | Thickness (mm) | Material grade | Applicable place |
Stainless steel | 0.5-0.8 | 304,321,316,316L | Places with serious corrosion caused by acid or base mediums and places not suitable for chloride ions |
Commercial pure titanium | 0.5-0.8 | Ti | Alkali or salt making places, sea water desalination places, low-temperature places, freezing places or places with chloride-ion corrosion |
Nickel | 0.5-0.8 | Ni | Places resistant to corrosion, hot alkali liquor corrosion, neutral solutions or subacid solutions |
Acid-resistant steel | 0.5-0.8 | RS-2, SM0254, HC-276 | Sulfuric acid field and the fields with acid corrosion |
Material name | Code | Applicable temperature | Applicable place |
NBR | N | -20~110ºC | Water, non-polar oil, mineral oil, lubricating oil, silicon oil, etc. |
EPDM | E | -20~150ºC | Steam, water, ozone, polar chemical mediums, alcohol, weak acids, weak bases, salt solutions, etc. |
Chloroprene rubber | C | -40~100ºC | Ammonia, mineral roil, lubricant, freon, etc. |
Fluororubber | F | 0~180ºC | Inorganic acids, bases, mineral oil, halohydrocarbon and oxidant |
Silicon rubber | Q | -40~200ºC | Food field, etc. |