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Using the right mechanical seals for your production?

28 September 2022

Choose the right mechanical seals

Today, mechanical seals are used in large parts of the process industry and are designed specifically for rotating applications such as pumps, turbines, compressors, and agitators. Therefore, they often make up a critical part of the production equipment and in pump systems - for example, a secure seal between the shaft and the housing is always required. Mechanical seals should also be inspected regularly to avoid fluid leakage and prevent the ingress of foreign bodies. In the worst case, lack of maintenance can lead to production stoppage and/or a contaminated end product.

Construction and qualities

Mechanical seals can be used for units from many different manufacturers, for example Alfa Laval, Johnson, Ibex, Jabsco and others. In addition, they come in various combinations such as carbon/rust-free, carbon/cer, sic/sic and tc/tc. Most often they are food approved. The rubber material often used in mechanical seals comes in either NBR, EPDM, FPM or PTFE. On that basis, many solutions are available for different specific operating situations.

What you should consider

When choosing a mechanical seal, several things should be taken into account:

  • Type of media being produced
  • Temperature and pressure conditions
  • Environment and safety

Different operating conditions require different sealing solutions. For example, in the chemical and pharmaceutical industries, both corrosive and toxic production conditions may be encountered. And in the food industry, mechanical seals and the gaskets that go with them must also be able to withstand CIP cleaning. At the same time, safety, emission levels and hygiene requirements are high.

Comprehensive stock range at Alfotech

At Alfotech we have put together a range of mechanical seals that can replace OEM solutions across makes, models, sizes and operating conditions at competitive prices. Our extensive stock range includes mechanical seals for centrifugal and positive displacement pumps along with pipework used in the food and pharmaceutical industries.

Based on our many years of experience in the field, we also put together special solutions that go beyond known combinations and thus solve specific problems. Contact our sales consultants to find out more by phone +45 7020 0422 or by e-mail alfotech@alfotech.dk. They are ready to advise.

See our range of mechanical seals

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