3R750

Carbon-graphite

The 3R 750 packing is an interlock braid of carbon fibers which are carefully impregnated with PTFE and a special lubricant. The resulting packing is very tough, resists wear, has excellent chemical resistance and prevents contamination.

Applications

This packing can handle chemicals over the entire 0-14 pH range except for strong oxidizers. It is very popular in the pulp and paper industry because it is especially designed for applications involving strong caustics, acids, bleaches, slurries and services where contamination cannot be tolerated. The 3R 750 is commonly used in valves and pumps, agitators, reactors, and autoclaves.

Specifications

Service limits

Minimum temperature -200°C (-325°F)
Maximum temperature 280°C (535°F)
Pressure
Rotating 362.6 psi (25 bar)
Static 2900 psi (200 bar)
Shaft Speed 3000 fpm (15m/s)
pH 0-14 (except strong oxidizers)

Approximate yields - Feet per pound (+/- 10%)

1/8" 78.3
3/16" 46.5
1/4" 27.1
5/16" 17.7
3/8" 11.9
7/16" 8.7
1/2" 6.6
9/16" 5.2
5/8" 4.2
3/4" 2.9
7/8" 2.2
1" 1.7
N.B. The information, details and values indicated are to the best of our knowledge. We recommend to conduct tests according to local conditions. The data is subject to some variations without notice.