Plate heat exchangers are compact devices that provide high efficiency in heat transfer. One of the most critical components of these systems is the gaskets. Gaskets ensure sealing between the plates while also guiding the fluids to flow in the correct directions.
Choosing the right gasket type is crucial for the efficiency and long-term performance of the heat exchanger.
Main Types of Gaskets
1. NBR (Nitrile) Gasket
Resistant to oil, water, and certain glycols.
Commonly used under medium temperature and pressure conditions.
2. EPDM Gasket
Offers high resistance to hot water, steam, and aggressive chemicals.
Widely used in the food and beverage industry.
3. Viton (FKM) Gasket
Resistant to acids, solvents, and high temperatures.
Preferred in chemical and petrochemical applications.
Gasket Service Life
Gasket service life is not a fixed value; it varies depending on operating conditions and the material used.
On average:
- NBR and EPDM gaskets can perform effectively for 3–5 years under suitable conditions.
- Viton gaskets can maintain durability for 5–8 years even in more aggressive environments.
Main factors affecting gasket life:
- Temperature and pressure fluctuations: Accelerate loss of elasticity.
- Chemical incompatibility: May cause swelling, hardening, or cracking of the gasket material.
- Storage conditions: Direct sunlight or high humidity can shorten gasket life even before installation.
Importance of Selecting the Right Gasket
When selecting a gasket, operating temperature, pressure, fluid type, and industry requirements must be carefully considered.
An incorrect gasket choice can lead to performance loss, leakage, and increased maintenance costs.
At Refkar, we help you select the most suitable gasket type for your application and provide long-lasting, reliable solutions.
