Product Overview
Pure PTFE gland packing with oil is a 100% polytetrafluoroethylene (PTFE) braided/torqued packing impregnated with a low-viscosity oil to reduce running friction and improve break-in behavior. It is engineered for demanding service where low friction, broad chemical resistance and minimal shaft wear are priorities — ideal for valve stems, pump shafts, mixers and agitators across petrochemical, chemical, pharmaceutical, food and general industrial sectors.
Pure PTFE Gland Packing With Oil — 100% PTFE braided gland packing impregnated with lubricant for ultra-low friction, excellent chemical compatibility and long service life in valves, pumps and mixers. Available in standard cord diameters 3–12 mm and roll lengths 5/10/25 m; die-cut and custom kits on request.
(Aliases: PTFE gland packing, oil-impregnated PTFE packing, PTFE rope packing, Teflon gland packing, PTFE packing for valves & pumps.)
Key Selling Points / CTAs
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Low friction → reduced power loss, extended shaft & seal life
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Excellent chemical resistance → suitable for pH 0–14 media
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Wide temperature range → cryogenic to high-temperature service (see specs)
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OEM die-cut rings & custom packing kits — fast quoting available
Product Construction & Why It Works
Construction
Made from 100% virgin PTFE yarns braided or square-braided into a dense cord and finished with a controlled oil impregnation. The pure PTFE base delivers chemical inertness and thermal stability; the oil reduces static friction at start-up and during operation.
Benefits of Oil Impregnation
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Smoother initial run-in, lowering break-in leakage.
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Reduced tendency for shaft scoring in lightly lubricated applications.
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Improved sealing at lower gland load — useful where bolt loads are limited.
Technical Features & Typical Properties
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Material: 100% virgin PTFE (polytetrafluoroethylene), oil-impregnated.
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Density (typical): ~2.10 g/cm³ (PTFE bulk density; braided cord density varies with braid tightness).
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Recommended temperature range: -200°C to +260°C (service limit of PTFE).
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Chemical compatibility: Very high — stable in acids, alkalis, solvents and most aggressive chemicals (pH 0–14).
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Friction: Very low coefficient of friction (excellent for high-speed shafts).
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Shaft speed & pressure: Suitable for moderate to high shaft speeds; pressure capability depends on stuffing box design — consult our engineering team for specific pump/valve ratings.
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Finish / Treatment: Oil-impregnated (standard); PTFE-graphite blends or lubrication-free (dry) options available on request.
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Certifications: MSDS available; FDA-grade PTFE or other compliance options offered on request.
Note: Always verify compatibility for steam, superheated applications, or where combined high temperature + abrasive slurry exist — we’ll help specify the right braid and gland loading.
Standard Sizes & Packaging
Common cross-section diameters (cord):
3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 9 mm, 10 mm, 12 mm.
Typical roll lengths / packages:
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5 m per roll (small sample/maintenance pack)
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10 m per roll (standard)
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25 m per roll (bulk)
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Custom lengths and pre-cut rings (die-cut) available.
Packaging: Plastic-wrapped spools/rolls, boxed and palletized for export; private-label/kit packaging available for OEMs.
Typical Applications
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Valve stem packing (gate, globe, ball valves)
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Pump shaft packing (centrifugal, rotary, slurry pumps where PTFE is recommended)
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Mixers, agitators and mechanical seals (secondary or backup sealing)
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Chemical process plants, pharmaceutical, food & beverage (FDA-grade options)
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Marine & desalination plants (chemical and salt resistance)
Advantages — Why Choose This Product
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Ultra-low friction reduces energy losses and shaft wear.
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Exceptional chemical resistance (full PTFE) — one packing for many fluids.
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Wide temperature tolerance from cryogenic to +260°C.
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Minimal creep relaxation compared with some non-PTFE solutions.
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Available in many diameters and lengths for direct swap with existing packing.
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Quick customization: die-cut rings, pre-formed kits, and private labeling for distributors/OEMs.
Comparison Table — PTFE (oil) vs Common Alternatives
| Feature | Pure PTFE (oil-impregnated) | PTFE-Graphite Blend | Aramid/Carbon Packing | Flexible Graphite |
|---|---|---|---|---|
| Chemical resistance | Excellent (0–14 pH) | Excellent | Good (depends on binder) | Good (oxidation at high temp) |
| Temp range | -200 to +260°C | -200 to +400°C (graphite raises temp) | -50 to ~200°C | Up to ~550°C (oxidation risk) |
| Friction | Very low | Low | Moderate | Low–moderate |
| Shaft wear | Very low | Low | Higher | Moderate |
| Best for | Valves/pumps with aggressive chemistry & high speed | High-temp where graphite needed | Abrasive slurries or mechanical sealing under high load | High-temp flanged connections, static seals |
| Die-cut yield | Excellent | Good | Good | Fair |
(Use these guidelines to match packing to application; contact our engineers for complex services.)
Custom & Value-Added Services
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Die-cut rings to customer drawings (DXF/CAD) — rapid tooling for standard bore sizes.
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Pre-assembled packing kits (4–8 rings per pump depending on depth) with instructions.
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Private-label & kit packaging for distribution partners.
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Technical support: installation guidance, gland load recommendations, and startup torque advice.
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Sample program: qualifying buyers may receive sample packs (subject to MOQ and shipping rules).
FAQ
Q1: What is the MOQ (minimum order quantity)?
A1: Standard MOQ for stock cord orders is typically 10 kg for standard diameters.
Q2: What are typical lead times?
A2: Stock items: 7–15 business days including QA and palletization. Custom die-cut kits or private-label orders: 2–4 weeks depending on quantity and tooling. Expedited options available for urgent maintenance spares.
Q3: How do you ship internationally?
A3: We ship FOB/CIF/EXW via sea (FCL/LCL) or air freight for samples. Documentation packages (commercial invoice, packing list, MSDS, COO) are provided. For regulated or controlled destinations we assist with export compliance.
Q4: Is your PTFE food/ pharmaceutical grade?
A5: We offer FDA-grade PTFE options and can supply certificates on request for food or pharmaceutical applications.
Q5: How should I install PTFE packing with oil to avoid leakage?
A6: Typical guidance: ensure clean shaft/stuffing box, cut rings square and stagger joints, compress evenly with gland follower, do not over-tighten — initial light compression, then retorque after run-in. Installation instructions included with kits.
Q6: What about shaft speed and pressure limits?
A7: PTFE packing is excellent for high shaft speeds; pressure capability depends on stuffing box design and number of rings. For high pressure or heavy axial loads consider reinforced or graphited variants — consult our engineering team for application-specific recommendations.
