Liongraf

Our universal, economical packing

Description

A highly reliable pump and valve packing

of cross-plait construction, based on

graphite and PTFE yarn that is thermally

stabilised then lubricated with a silicone-

free compound.

Typical applications

Widely regarded as an economical

packing for universal application and the

reduction of stockholding requirements.

Well proven in the petrochemical, power

generation, marine and metallurgical

sectors, and by pump and valve

manufacturers for OEM installation.

It is suitable for duties with steam,

condensate, effluents, fuels and oils,

acids, alkalis and chemical solutions.

Prime features

●

Strong, durable and extrusion resistant.

●

Reliable over a wide range of duties.

●

Excellent chemical resistance.

●

Low friction with high thermal

conductivity.

Chemical properties

Compatible with media in the range

pH 0-14, including corrosive fluids and

solvents.

Service capabilities

Valve stem duties

Maximum temperature +260°C

Minimum temperature

–

100°C

Max system pressure 120bar

Centrifugal pumps & rotary

equipment

Operating temperatures

As valve stem

Maximum shaft speed 17.5m/s

Max system pressure 20bar

Reciprocating pumps & rams

Operating temperatures

As valve stem

Maximum rod speed 2m/s

Max system pressure 80bar

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.