DAB.ACCESSORIES NKVE - Special mechanical seal

The DAB.ACCESSORIES NKVE category includes special mechanical seals designed for centrifugal pumps in industrial environments. These seals are used in pump systems where reliable shaft sealing is required to prevent leakage and maintain system efficiency. The range includes models compatible with different pump sizes and operating conditions.

The seals are available in multiple configurations, including variants with EPDM and Viton elastomers, and combinations of silicon carbide, carbon, and WC (tungsten carbide) for the sealing faces. These materials are selected to suit specific fluid types and temperatures, ensuring long-term performance in aggressive or high-temperature environments.

How to choose

• Select the correct model based on the pump size (e.g., NKVE 1-3-6-10 or NKVE 15-20) to ensure compatibility with the pump shaft and housing.
• Choose the appropriate seal type (E2, V3, V4, or E5) depending on the required material combination and elastomer type for the application.
• Verify the seal material (e.g., SIC-SIC-EPDM or WC-WC-EPDM) to match the chemical and thermal properties of the pumped medium.

Frequently asked questions

What is the difference between E2 and V3 seal types?
E2 seals use EPDM elastomers, while V3 seals use Viton (FKM), offering better resistance to oils and solvents.

Can these seals be used in high-temperature applications?
Yes, models with Viton elastomers and WC or SIC sealing faces are suitable for high-temperature environments.