GRAPHITE/PTFE Packing 

Features

Graphite/teflon gland packing is a homogeneous material developed by passing through the treatment of high-quality teflon resin and graphite powder. It has a low coefficient of friction and thermal permeability. It can be used in most of the chemical environments. This packing is knitted from graphite Teflon yarns. Its stable high thermal transmittance ensures an effective seal, especially at high temperatures and speeds.

Gland packings consist of a braided or twisted material, such as graphite, PTFE or aramid fibres, that are placed around a shaft or valve stem. The packing material is compressed against the shaft or stem by a gland, which is a mechanical seal that is tightened to create a secure, leak-free seal.

Application Areas

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.It is commonly used in piston and gear pumps, valves.
It gives better results than pure teflon seals, especially in high speed and hot environments.

Valve Stem Duties

• Maximum operating temperature: +260°C (+500°F)
• Minimum operating temperature: -100°C (-148°F)
• Maximum system pressure: 12 MPa/120 bar (1740 psi)

Centrifugal Pumps and Rotary Equipment

• Maximum operating temperature: +260°C (+500°F)
• Minimum operating temperature: -100°C (-148°F)
• Maximum system pressure: 2 MPa/20 bar (290 psi)
• Maximum shaft speed: 17.5 m/s (3445 fpm)

Reciprocating Pumps and Rams

• Maximum operating temperature: +260°C (+500°F)
• Minimum operating temperature: -100°C (-148°F)
• Maximum system pressure (standard): 8 MPa/80 bar (1160 psi)
• Maximum rod speed: 2 m/s (394 fpm)

Available in :

8,10,11,12,13,16,19,22,25 and 28mm

(PTFE) Teflon Food grade 10 and 20mm