Materials in Plate Heat Exchanger
Plate heat exchanger framework is composed of fixed and moveable plates (including baffle, the intermediate plate), upper and lower guiding bars, columns, tightening bolts, anchors, etc.
1. Plates Materials
pressure vessel steel
Note: fixed and moveable plates (including baffle, the intermediate plate) can be coated by 0Cr18Ni9, 0Cr17Ni12M02.
2. Gasket Materials
Nitrile rubber (NBR) General purpose, oil resistant EPDM General purpose, elevated temperatures Heat Seal For high temperatures, specially heating by steam
3. Bolts Materials
quality carbon steel
4. Upper and Lower Guiding Bars
Small plate exchanger: Using round steel. Commonly used 35, 45 or stainless steel 304
Large plate exchanger: Using the I-beam, H-beam. Commonly used Q235, 35, and stainless steel 304.
5. Column & Anchor
column: Using the U-section steel, I-beam, H-beam. Commonly used Q235, 35, and stainless steel 304.
anchor: Using Q235, 35, stainless steel 304
When you select materials, it is necessary to consider their working conditions: for example using stainless steel materials on food machinery. Choosing container plate, intensity is higher than carbon steel, but the price will be higher. Choosing alloy steel/quality carbon steel, intensity is higher than that of carbon steel, but need a higher price and longer delivery time. The intensity of stainless steel is lower than carbon steel. Please take into consideration the influences of various factors.