Double-acting mechanical seal in size 0 for laboratory homogenisers by Vakumix and NETZSCH Vakumix – suitable for laboratory plants with 2, 5 and 10 litres. Price: EUR 7,455.26 net (EUR 8,871.76 incl. 19% German VAT), plus shipping per seal: EUR 49.95 within Germany (insured express), EUR 99.95 to the EU and the rest of Europe, EUR 199.95 worldwide.
Delivery time approx. 1 week within Germany, the EU and the rest of Europe, approx. 2 weeks worldwide (dispatch after 3–7 working days). No deliveries to sanctioned countries and regions, including Russia, Cuba, Iran, North Korea, Syria, Venezuela, Crimea, Sevastopol, Donetsk and Luhansk. Customers outside Germany pay the net price (VAT-exempt intra-community supply with a valid VAT ID, or VAT-exempt export delivery). For deliveries outside the EU, customs duties, customs clearance and any commissions are charged additionally. Sales exclusively to business customers.
Compatible – not an original part: This mechanical seal is a bought-in part from specialised seal manufacturers and fits homogenisers from NETZSCH Vakumix and Vakumix. It is not an original part and this is not an offer from NETZSCH or Vakumix.
Typical applications of size 0
The size 0 mechanical seal belongs to laboratory homogenisers by Vakumix and NETZSCH Vakumix with 2, 5 and 10 litres. Such plants are used in laboratories and pilot plants – for example for formulation development, sample batches and test series with creams, ointments and gels.
- Laboratory plants with 2, 5 and 10 litres
- Formulation development, sample batches and trials
- We check the fit in advance based on type and year of manufacture
Technical data
| Feature | Mechanical seal size 0 |
|---|---|
| Shaft Ø | on request – we check the fit based on type and year of manufacture |
| Homogeniser size | Size 0 (laboratory) |
| Batch size of the plant | laboratory plants with 2, 5 and 10 litres |
| Design | double-acting |
| Housing | V4A stainless steel |
| Seal rings | 4 × silicon carbide (SiC), alternatively e.g. carbon against chrome cast iron |
| O-rings | FKM, others e.g. EPDM on request |
| Suitable for | Laboratory homogenisers by Vakumix and NETZSCH Vakumix |
| Price | EUR 7,455.26 net · EUR 8,871.76 incl. 19% VAT |
| Delivery | Germany: EUR 49.95, approx. 1 week (insured express) · EU and rest of Europe: EUR 99.95, approx. 1 week · worldwide: EUR 199.95, approx. 2 weeks – per seal |
Why silicon carbide?
Silicon carbide (SiC) is particularly wear-resistant – even with abrasive raw materials. That is why the standard version uses four SiC seal rings. Other material pairings are possible for special applications.
Replace seal and shaft together
If the mechanical seal is leaking, the shaft should be checked too: with increasing age, imbalance can occur, and the shaft wears in the area of the seal. A new seal on an old shaft lasts much less long. We supply the matching shaft and fit both on request at our factory in Weyhe or on site at your plant.
Service around your seal
- Damage analysis of every removed seal with a short report
- Testing after repair or fitting, on request with a test report
- Collection by courier and return delivery
- Exchange seal to avoid downtime
Frequently asked questions about the size 0 mechanical seal
Which plants is the size 0 mechanical seal for?
For laboratory homogenisers by Vakumix and NETZSCH Vakumix with 2, 5 and 10 litres. Tell us the type and year of manufacture of your plant – we check the fit before you receive a quotation.
When should the mechanical seal be replaced?
Typical signs are leaks, product in the barrier fluid, unusual noise or increased temperatures in the seal area. With frequent product changes and cleaning cycles, regular checks during maintenance pay off.
Is there an exchange seal for size 0?
Yes. With an exchange seal your plant stays ready for operation while we examine the removed seal and send you a short damage report.
Other sizes
Last updated: October 2026
All trademarks and product names mentioned, in particular Vakumix, NETZSCH, LambdaVita, KappaVita and GammaVita, are the property of their respective owners and are used solely to identify the products offered. This is not an offer from the manufacturer. SEEFRIED Verfahrenstechnik is an independent supplier and is not affiliated with these manufacturers; the mechanical seals offered are compatible spare parts, not original parts.