Heat Shieldings | Item no.: HSGRA450.03 | EAN: 8785324101993

Gland packing - Pure expanded graphite | Grafopak GRA 450

MaterialGraphite
Max. heat450 °C
ColourGrey

€190,42 incl. VAT

Available

Version

Free shipping from €95 (NL, BE and DE)
Ordered before 8:00 PM? We aim to dispatch the same day; during busy periods this may be the next day.
365-day return policy
1 year warranty on your product

Description

Grafopak GRA 450 Gland Packing

The GRA gland packing is made of high purity flexible graphite with enhanced sliding properties. It is specifically designed for dynamic applications, ensuring low friction and rapid heat dissipation from the friction zone. A special addition of active inhibitors protects against the risk of corrosion or excessive wear of the shaft sleeve.

Technical Properties:

Material: Graphite
Color: Grey
Temperature range: -200°C to +450°C
Pressure resistance:
Pumps: max. 40 bar
Valves: max. n/a
Rotary applications: max. 200 bar
pH range: 3 – 14
Speed:
Pumps: max. 40 m/s
Valves: max. n/a
Rotary applications: max. 2 m/s
Maximum load (pV): 600 bar·m/s
Average density: 1.15 g/cm³
Minimum shaft/bush hardness: 30 HRC
Available in square profiles from S3 to S50 mm

DOCUMENTEN & DOWNLOADS

Technical datasheet: Datasheet document
Installation instructions: Installation instructions document

Specifications

Material	Graphite
Length \| m	Varies per diameter
Width \| mm	3 to 50 mm
Height \| mm	3 to 50 mm
Max. direct heat \| °C	450
Colour	Grey
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.