We offer a high-quality General purpose mechanical seal, the NV-1 model, designed specifically for water and chemical pumps. This seal features a robust multiple spring design, ensuring uniform face loading and extended service life.

It is an unbalanced seal and is independent of the direction of rotation, making it versatile for various industrial applications. The fitting dimensions are strictly according to DIN 24960 (EN12756), ensuring seamless interchangeability with standard housings.

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)
• PTFE

Operating limits:

• p = 16 (25) bar
• t = -50 … 220°C
• v = 20 m/s

Type: Pusher mechanical seal
Replacement:John Crane 58U / 59U, Burgmann M74N , AES M03