3R755
The 3R755 packing is manufactured from the finest quality ramie yarns with PTFE suspensoid in a square plait construction. An additional break-in lubricant is added to minimize shaft wear and to allow for expansion during the break-in period.
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Applications
This well lubricated, medium-hard packing has very low frictional characteristics, which assure minimal shaft wear. The ramie yarn is rot and mildew resistant, making the packing ideal for marine use, handling cold water, salt water and cold oils. In the marine industry, it is recommended for sealing stern tube and rudder post stuffing boxes. This style is also used for certain pump and valve applications in the pulp and paper, water/wastewater, and mining industries.
Specifications
Technical Data
Temperature | 130°C (266°F) |
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Pressure | Static: 450psi (30 bar), Rotating: 300psi (20 bar), Reciprocating: 300psi (20 bar) |
Shaft Speed | 1968 fpm (10 m/s) |
pH | 5-11 |
Approximate yields - Feet per pound (+/- 10%)
1/8" | 60.5 |
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3/16" | 40.9 |
1/4" | 27.5 |
5/16" | 15.9 |
3/8" | 11.2 |
7/16" | 8.9 |
1/2" | 7.6 |
9/16" | 5.4 |
5/8" | 4.7 |
3/4" | 3 |
7/8" | 2.3 |
1" | 1.8 |
1-1/8" | 1.4 |
1-1/4" | 1.2 |
1-1/2" | 0.8 |