Heat Shieldings | Item no.: HSGRA450.SAMPLE | EAN: 8785324102211

Gland packing - Carbon fiber with graphite dispersion | Karbopak HR 660

MaterialCarbon fiber with graphite dispersion
Max. heat600 °C
ColourBlack

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Description

Karbopak HR 660 Gland Packing

The packing is made of carbon fiber with a high degree of graphitization and excellent thermal resistance. Karbopak HR 660 packing is braided in a wide range of square profiles and impregnated with a high-temperature lubricant in the form of graphite dispersion.

Technical properties

Material: Carbon fiber with graphite dispersion
Temperature range: -200°C to 600°C
Pressure resistance:
Pumps: max. 30 bar
Valves: max. 400 bar
Rotary applications: max. 600 bar
pH range: 1 – 14 pH
Speed:
Pumps: 20 m/s
Valves: 6 m/s
Rotary applications: 2 m/s
Maximum load (pV): max. pV ~ 400 bar·m/s
Average density: ~1.3 g/cc
Min. shaft/bush hardness: ~40 HRC
Available in square profiles from S6 to S30 mm (with a tolerance of -5/+10%)

DOCUMENTEN & DOWNLOADS

Technical datasheet: Datasheet document
Installation instructions: Installation instructions document

Specifications

Material	Carbon fibre with graphite dispersion
Length \| m	Varies per diameter
Width \| mm	4 to 30 mm
Height \| mm	4 to 30 mm
Max. direct heat \| °C	600
Colour	Black
Self-adhesive	No

Frequently asked questions

What exactly is gland packing?

A braided sealing cord with a square profile that is laid around the shaft in the stuffing box of a pump or valve. Tightening the gland follower compresses the cord slightly so it seals the shaft without blocking rotation.

Which gland packing materials are there?

Among others pure and graphited PTFE, expanded graphite, aramid, carbon fibre, phenolic fibre and ramie fibre, also in combinations such as aramid-reinforced corners.

Up to what temperature is gland packing resistant?

Depending on the material 120 to 600 °C; the temperature resistance and dimensions are listed per packing on the product page.