PTFE Tapes, Gland Packings, Envelope Gaskets & Seals
Technical Specification
| Grades | Virgin, Glass Filled, Carbon Filled, Graphite Filled, Bronze Filled PTFE |
|---|---|
| Form | Tapes, Gland packings, Envelope gaskets, Expanded PTFE, Balls, Bushes, Tubing, Piston / guide rings, Bronze-filled guide strip, Etched (one-side bondable) sheets |
| Key Properties | Near-universal chemical resistance, very low friction, wide temperature range (about -200°C to +260°C), non-stick, non-ageing |
| Typical Uses | Valve and pump sealing, thread sealing, chemical flange gaskets, compressor rings, machine-tool slideways, check-valve balls |
| Supply | Standard stock items, or machined / moulded PTFE components as per drawing |
Key Benefits of PTFE Sealing Products
PTFE is the reference material for sealing aggressive media. Key benefits include:
- Chemical Inertness: Resists almost every industrial chemical, acid and solvent.
- Low Friction: Reduces wear on shafts, stems, pistons and slideways.
- Wide Temperature Range: Performs from cryogenic to around +260°C.
- Grade Options: Filled grades add wear resistance, strength and thermal conductivity where needed.
To compare grades, see our PTFE Grades Guide.
PTFE Seals and Accessories We Supply
Our PTFE range beyond sheets and rods includes:
- PTFE thread seal tape — for threaded pipe joints
- PTFE gland packing — braided packing for valve stems and pump shafts
- PTFE envelope gaskets — for chemical and glass-lined flanges
- Expanded PTFE (ePTFE) — soft, compressible sealing for uneven flanges
- PTFE balls — for check valves and ball valves
- PTFE bushes and tubing — low-friction sleeves and chemical-resistant tube
- Piston and guide rings for compressors — in filled PTFE grades
- Bronze-filled PTFE guide strip — for machine-tool slideways
- Etched (dimpled) PTFE sheets — one side treated so it can be bonded
Which PTFE Grade for Seals and Rings?
- Virgin PTFE: best chemical resistance and purity — tapes, gaskets, food and pharma parts
- Glass filled: better wear and less creep — valve seats, rings
- Carbon / graphite filled: good for non-lubricated compressor rings and dynamic seals
- Bronze filled: high load and heat transfer — guide rings, slideways, hydraulic wear bands
See also: PTFE Products, Carbon Filled PTFE and Ready-Cut Gaskets.
Send us your drawing, sizes and quantities and our Al Khobar team will confirm availability, lead time and a quotation for delivery anywhere in Saudi Arabia and the GCC.
Frequently Asked Questions
Q1. What is PTFE gland packing used for?
A. PTFE gland packing seals the gap around rotating pump shafts and moving valve stems, especially in chemical and water services.
Q2. What is the difference between PTFE tape and expanded PTFE?
A. PTFE thread seal tape is a thin film used on threaded joints. Expanded PTFE (ePTFE) is a soft, compressible form used as gasket material on flanges.
Q3. Which PTFE grade is best for compressor piston rings?
A. Filled grades such as carbon, graphite or bronze filled PTFE are normally used for compressor rings because they wear less than virgin PTFE.
Q4. Can you machine PTFE seals to drawing?
A. Yes. We machine and mould PTFE components such as seals, rings, seats and bushes to your drawing.
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