When selecting seals for heat exchangers, it is important to consider not only the price, but also the temperature resistance, chemical resistance and suitability of the materials for the operating conditions.
Correctly selected industrial seal:
does not deform when heated;
does not dry out or shrink in size, preventing loss of tightness;
maintains stability during CIP/SIP cleaning and operation under pressure;
does not migrate into the product, does not affect the taste and safety of food products, including beverages and dairy products.
All these characteristics are only possible if the sealing material is selected taking into account the actual temperature, mechanical and chemical loads that arise in your production process.
| Chemical name | ASTM D-1418-79 | Temperatures °C |
|---|---|---|
| BUTADIENE - ACRILONITRILE | NBR STD FOOD | -20 + 120 |
| BUTADIENE - ACRILONITRILE | NBR HT FOOD | -20 + 140 |
| BUTADIENE - ACRILONITRILE | NBR HT IND | -20 + 140 |
| BUTADIENE - ACRILONITRILE - IDROGENATA | H-NBR | -40 + 150 |
| CLOROPRENE | CR | -40 + 100 |
| ISOBUTILENE - ISOPRENE | IIR | -40 + 110 |
| ETILENE - PROPILENE - DIENE | EPDM STD | -40 + 120 |
| ETILENE - PROPILENE - DIENE | EPDM STD FOOD | -40 + 120 |
| ETILENE - PROPILENE - DIENE | EPDM HT FOOD | -40 + 150 |
| FLUORURATA | FKM "A" STD | -15 + 220 |
| FLUORURATA | FKM "A" FOOD | -15 + 220 |
| FLUORURATA | FKM "GF" | -8 + 200 |
| FLUORURATA | FKM "GLT" | -30 + 200 |
Please note! The actual thermal and chemical resistance of seals directly depends on the chemical composition of the rubber. Therefore, cheap seals or unknown analogues may have worse performance characteristics than stated in their technical descriptions.
We are always ready to help you select the right material for your temperature, environment and CIP/SIP conditions.
Steiner Ukraine is the official representative of Orobica in Ukraine — we supply seals and plates for Alfa Laval, GEA Kelvion, API, Fischer, Schmidt, APV, Danfoss and other heat exchangers.
Not sure which seal is right for your production? Leave a request — we will select materials according to your specifications and provide technical advice.