We offer specialized PTFE-wedge mechanical seals, encompassing the 153 (single) and 153D (double) series. These seals are explicitly designed for chemical pumps handling aggressive media where superior chemical resistance is required.

The design features a pusher construction with a PTFE wedge as the secondary seal, providing exceptional durability against harsh chemicals. These are unbalanced seals available in both single and double versions to suit various operational safety requirements.

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:

• PTFE (High chemical resistance)

Operating limits:

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

Тype: Pusher mechanical seal
Replacement: 153, 153D