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Aquagraf - for rotary duties

Description
A highly developed gland packing for valves and rotary pumps used on potable water systems.  The yarn, which comprises a unique blend of expanded PTFE and graphite lubricant, is cross-plaited around a silicone rubber core for good compressibility and recovery.

Typical applications
OEM and maintenance duties for valves and rotating plant in the water supply industry. It isa also safe for intermittent contact with food products. Resistance to a wide range of media has extended its duties to chemical, petrochemical and general processing plant.

Specification

• WRAS approved for use with hot and cold potable water at up to 85°C.

Prime features

• Hardwearing with great resilience.
• Elastomeric core absorbs action of worn shafts and valve stems.
• Impressive low friction characteristics.
• Rapidly achieves stable conditions after pump start-up.

Chemical properties
Compatible with media in the range pH 1-13, excluding strong oxidising agents such as aqua regia, fuming nitric acid, oleum and molten alkali metals.

Service capabilities - valve stem duties
Maximum operating temperature:  +260°C
Minimum operating temperature:   -50°C.
Maximum system pressure:            50bar.

Service capabilities - centrifugal pumps and rotary equipment
Maximum operating temperature:  +260°C
Minimum operating temperature:   -50°C.
Maximum shaft speed:                   20m/s.
Maximum system pressure:            10bar.

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)  

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