Heat Shieldings | Item no.: HSGTF260.04 | EAN: 8785255871378

Gland packing - Graphitized PTFE | Tefapak GRF 260

MaterialGraphitized, expanded PTFE
Max. heat260 °C
ColourBlack

€249,00 incl. VAT

Available

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Description

Tefapak GRF 260 Gland Packing

The GRF 260 gland packing is based on gPTFE, i.e., graphitized, expanded PTFE. The GRF packing is made of PTFE foil thin strips braided with graphite addition. The high graphite content improves thermal conductivity, sliding properties and reduces friction wear, which significantly extends the service life in dynamic applications.

Technical Properties

Material: gPTFE (graphitized, expanded PTFE)
Color: Black
Temperature Range: -200°C to +260°C
Pressure Resistance:
Pumps: max. 20 bar
Valves: max. 400 bar
Rotary applications: max. 200 bar
pH Range: 0 – 14
Velocity:
Pumps: 20 m/s
Valves: 3 m/s
Rotary applications: 2 m/s
Maximum Load (pV): max. ~300 bar·m/s
Average Density: ~1.5 g/cm³
Min. shaft/sleeve hardness: ~30 HRC
vailable in square profiles from S4 to S30 mm

DOCUMENTEN & DOWNLOADS

Technical datasheet: Datasheet document
Installation instructions: Installation instructions document

Specifications

Material	Graphitised, expanded PTFE
Length \| m	Varies per diameter
Width \| mm	4 to 30 mm
Height \| mm	4 to 30 mm
Max. direct heat \| °C	260
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.