We offer a high-performance protected spring mechanical seal, the BV-TNG model. This specialized seal is explicitly engineered for challenging applications involving high viscosity and abrasive media.

The key advantage of this design is that the spring is out of contact with the product, preventing clogging and corrosion. Additionally, it features electropolished metal parts and formed secondary sealings to avoid gaps, making it perfectly suitable for sterile and hygienic applications.

It is a balanced seal, compliant with DIN 24960 (EN12756) dimensions, and operates independently of the direction of rotation.

Seal faces materials:

• Resin impregnated caron(В)
• Antimony impregnated carbon (A)
• special CrMo steel(Е)
• tungsten carbide (U3)
• silicon carbide (Q1, Q2)
• ceramics Al O (V) 2 3

Secondary sealing materials:

• • Fluorcarbon rubber, FKM (V)
  • Nitrile-butadiene-rubber (P)
  • Ethylene propylene
  • rubber, EPDM (E)
  • Perfluorocarbon rubber, FFKM (for example Kalrez®, etc.), (K)

Operating limits:

• • • p = 40 bar
    • t = -50 … 220 °C
    • v = 20 m/s

Axial movement: ±1 мм

Type: Pusher mechanical seal
Replacement: Sterling GNZ, Burgmann HJ92N / HJ97N