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Description
A tough, high performance packing, cross-plaited from texturised aramid yarns. Each yarn is uniformly impregnated with PTFE dispersion and a silicone-based lubricant that resists chemical attack at high temperatures.
Typical applications
Valves and pumps handling abrasive and aggressive media in pulp and paper mills, petrochemical plants, power stations, metallurgical plants, sewage works and china clay works. Also suitable for potable water and foodstuffs, medium pressure steam, and hardening fluids such as tar and bitumen.
Specifications
Prime features
Chemical properties
Compatible with media in the range pH 2-13, including water, oils, solvents, medium strength acids and alkalis.
Service capabilities - valve stem duties
Maximum operating temperature: +250°C
Minimum operating temperature: -50°C.
Maximum system pressure: 150bar.
Service capabilities - centrifugal pumps and rotary equipment
Maximum operating temperature: +250°C
Minimum operating temperature: -50°C.
Maximum shaft speed: 20m/s (refer to James Walker for higher speed duties).
Maximum system pressure: 25bar.
Service capabilities - reciprocating pumps and rams
Maximum operating temperature: +250°C
Minimum operating temperature: -50°C.
Maximum rod speed: 1.5m/s.
Maximum system pressure: 150bar.
How supplied
Ex-stock: all popular square sections from 3mm to 25mm, boxed in 8m lengths. Also supplied as split preformed rings and sets. Full fitting instructions are included.
Click here to download the Compression Packing Guide pdf (2.17MB)
