Multiple spring mechanical seal
4 - 5", 350 psi FLOWSERVE

The Pac Seal Type 8 & 9 provide high-quality, positively driven, multi-spring pusher style seals for industrial and severe chemical applications. The rotary unit is set screwed to the shaft, for positive drive.
The rotaries feature seal rings which are replaceable. Seats are available in a variety of styles and sizes. Both the Type 8 & 9 are available in narrow cross section (8T & 9T), double seal configurations, and balanced versions.

Replaces: The Pac-Seal Type 8 & 9 are the high quality, versatile replacement alternative for Crane Type 8 & 9 respectively.

Materials: The standard 8 is offered in Viton (o-ring) / Carbon / 316 SS - Kalrez is an available alternative.The standard 9 is offered in Teflon (wedge) / Carbon / 316SS.

Pressure: 350 psi / 24 bar (balanced)*
Temperature: 500°F / 260°C**
Speed: 5000 fpm / 25.4 m/s
Sizes: .5" to 4"

Notes:
*34bar/ 500 psi unbalanced
**With graphite wedge up to 750° F or 400° C