• Mechanical seal type DBUE/DQQE for Grundfos pumps series TP-HP
• Multiple spring unit design
• Balanced
• Undepended of the rotation direction

Seal faces materials:

• DBUE – Carbon/Tungsten Carbide
• DQQE – Silicone carbide/Silicone carbide

Operation limits:

• p = 25 (40) bar
• t = -50 … 220°C
• v = 20 m/s

Type: Pusher mechanical seal
For pumps: Grundfos
Replacement: John Crane 8B1