The performance of heat exchanger gaskets largely depends on their materials. Manufacturers in Guangdong province offer gaskets made from various materials to meet different domestic and international operating conditions. Common materials include:
1. Nitrile rubber: This is the most commonly used gasket material. It has good oil resistance, wear resistance, and elasticity, and is suitable for temperatures not exceeding 120 degrees Celsius. It is commonly used for media such as water, steam, mineral oil, and hydraulic oil.
2. Ethylene propylene diene monomer (EPDM) rubber: Known for its excellent heat resistance, aging resistance, ozone resistance, and chemical corrosion resistance. It is particularly suitable for media such as hot water, steam, weak acids and alkalis, and chilled brine at higher temperatures (above 150 degrees Celsius), and is widely used in HVAC and district heating.
3. Fluororubber: This is a high-performance elastomer with excellent high-temperature resistance (above 200 degrees Celsius) and chemical corrosion resistance. It can withstand various strong acids, strong alkalis, solvents, and oils. It is commonly used in harsh conditions such as chemical and pharmaceutical industries, but its cost is relatively high.
4. Silicone rubber: Offers a wide operating temperature range (excellent low-temperature performance) and good physiological inertness, but has relatively low mechanical strength. Primarily used in the food and pharmaceutical industries where hygiene requirements are high, or in certain special low-temperature applications.
5. Chloroprene rubber: Offers good weather resistance, ozone resistance, and moderate oil resistance. Commonly used in environments containing chloride ions or ozone, such as cooling tower water and seawater.
Material selection requires comprehensive consideration of the properties of the medium, operating temperature, pressure, and cost. Manufacturers in Guangdong typically have the capability to recommend suitable materials based on the user's specific operating conditions.
