eBay

4mm - 30mm Square Pure PTFE Gland Packing Cord Rope Seal for Pump Valve Shaft Stem

High-quality materials, exquisite craftsmanship, safe, reliable and durable, long service life, complete specifications, convenient and flexible use, and better cost performance.

PLEASE NOTE: If you are ordering multiple 1 metre lengths of this product it will be sent in a continuous length unless you request otherwise.

PTFE gland packing is made of pure PTFE fibre braid without PTFE emulsion and lubricating grease treatment, it has good corrosion resistance, good self-lubricating and anti-paste properties. Due to the flexible and adjustable nature of the solid braid, it fits well with shafts, stem, stuffing boxes, etc.

Performance parameters:

Specific gravity: 2.1-2.3g/cm3
Elongation: 150-400%
Tensile strength: 13.7-34.3MPa
Compression strength: 12MPa
Shore hardness: D05-55
Coefficient of dynamic friction: 0.06
Breakdown voltage: 19kv/mm
Operating temperature: -200℃ ~ +280℃

Product characteristics:

High temperature resistance, working temperature up to 280° C
Low temperature resistance, good mechanical toughness; elongation of 5% even at temperatures down to -196°C
Acid and alkali resistant, inert to most chemicals and solvents, resistant to strong acids and alkalis and various organic solvents
Weather resistant, better ageing life than any other material in its class
High lubricity, lowest coefficient of friction of any solid material
Non-adhesive, with the lowest surface tension of any solid material and no adhesion to any substance
Non-toxic, physiologically inert, no adverse reactions when implanted in humans
Good insulating properties, can withstand voltages up to 1500V

Application range：Mainly used for static sealing at the connection points of valves, pumps and pipes. Can be used in chemical, food, pharmaceutical, paper, chemical fibre, fine chemical and other applications where contamination is not allowed, for chemical media other than soluble alkali metals and free fluorine ions.

- Material: PTFE

- Size：4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 30mm

- Length: 1 meter (If you need other length , you can also contact us to support custom.)

- Exact dimensions can also be viewed in the photo gallery.

- You can find more products in different material, type, color, sizes, quantity and shapes in our shop If you have special needs, please contact us, we can customize according to your needs!

Note:
- Please allow minor errors due to manual measurement. Thank you for your comprehension.
- Monitors are not calibrated, the element color shown in the photos may differ slightly from the real object. Please take the real one as standard.

Package included : ( According to your choice )