Schopper Riegler Freeness Tester – Model SR/P
Measures the rate of drainage of a diluted pulp suspension
The Regmed SR/P is used to determine the drainability of a pulp suspension in water. The drainability being the measurable index of the refining degree of pulps.
The refining of pulps, is one of the most important stages in the paper production process and strongly influences sheet forming and the physical properties.
This process is applicable to all kinds of pulp in aqueous suspension.The drainage rate is related to the surface conditions and swelling of the fibres and the test is widely used to track the changes during the beating and refining process.
In principal the instrument is the same as the Canadian Freeness Tester except that the pulp samples have a lower concentration and the scale is reversed in comparison with the amount of water collected.
Standards
Complies to ISO 5267/1
Manufacture
The SR/P is a stainless steel structure, with a steel base. A large precision circular level; levelling feet; chrome plated bronze drainage chamber, funnel, spreader cone and sealing cone; Plexiglas safeguard; handle for drainage chamber; ISO standard pneumatic components; hook spanner and fixing base for comfortable exchange of phosphor bronze wire screen.
Optional Accessories
- SR-DR – Quick Drain Device enables quick and complete remotion of the fibre layer from the drainage chamber
| Air pressure | 2 kgf/cm2 / 0.1 m3/h - instrument quality |
| Air consumption | 0.1 m3/h |
| Speed of sealing cone | (100 ±10) mm/s |
| Calibrated bottom orifice | (149.0 ±1.0) s for 1l of water |
| Drainage chamber volume | 1000 ml |
| Drainage area | 100 cm2 |
| Pneumatic drive | 2.0 kgf/cm2 |
| Measuring scales | (0-100) |
| °SR Resolution | 1°SR |
Dimensions: (330 x 470 x 1440) mm (W x L x H)
Weight: 25 kg
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