PTFE Packing Manufacturer – High-Quality Braided Gland Sealing Solutions from China
PTFE Packing – High-Performance Gland Sealing for Pumps & Valves
Kaxite Sealing, a leading PTFE packing manufacturer in China, supplies premium gland packing solutions engineered for reliable sealing in rotating and reciprocating equipment. Our custom PTFE packing is braided from high‑quality PTFE yarns, with options for graphite impregnation, aramid fiber reinforcement, or molybdenum disulfide lubrication – delivering exceptional chemical resistance, low friction, and thermal stability from -268°C to +280°C. Available in square cross‑sections from 3mm to 50mm, in coils or pre‑cut rings, Kaxite PTFE packing reduces shaft wear, minimizes leakage, and extends maintenance intervals in chemical, petrochemical, pharmaceutical, food, and power industries. ISO 9001:2015 certified, with full traceability and competitive factory pricing – request a free sample or bulk quote today.
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Chemical Inertness
Resists almost all industrial chemicals, acids, and solvents – ideal for corrosive media.
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Wide Temperature Range
Continuous service from -268°C to +280°C – suitable for cryogenic and high‑heat services.
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Low Friction & Self‑Lubricating
Coefficient of friction as low as 0.05 – reduces shaft wear and power consumption.
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Customizable Grades
Virgin PTFE, graphite‑impregnated, aramid‑reinforced, or MoS₂ lubricated – tailored to your service.
PTFE Packing Grades – Selection Guide
Kaxite offers a comprehensive range of braided PTFE packing grades to match your specific operating conditions – from ultra‑pure chemical service to high‑temperature, high‑pressure valve sealing.
| Product Code | Construction | PTFE Content | Temp. Range | pH Range | Max. Shaft Speed (m/s) | Primary Application |
|---|---|---|---|---|---|---|
| KX-PTFE-100 | Braided 100% Virgin PTFE | 100% | -268°C to +260°C | 0–14 | 25 | Ultra‑pure chemical, food, pharma |
| KX-PTFE-G75 | PTFE + Graphite Impregnation | 75% min. | -200°C to +280°C | 0–14 | 20 | High‑temp valves, hot oils, acids |
| KX-PTFE-GF30 | PTFE + Glass Fiber Reinforcement | 70% min. | -200°C to +260°C | 1–13 | 18 | Abrasive slurries, high tensile strength |
| KX-PTFE-MO | PTFE + Molybdenum Disulfide | 80% min. | -268°C to +260°C | 0–14 | 22 | Dry running, oxygen systems (non‑greasy) |
| KX-PTFE-AR | PTFE + Aramid Fiber Corners | 70% min. | -200°C to +260°C | 1–13 | 20 | Valves, high‑pressure pumps, chemical service |
Custom sizes and cross‑sections (square, round, rectangular) available. Contact our engineering team for application‑specific recommendations.
📋 Physical & Mechanical Properties
| Density | 1.1 – 1.3 g/cm³ |
| Tensile Strength | 15 – 25 N/mm² |
| Elongation at Break | 150 – 300% |
| Compression Set (25°C, 14 MPa) | < 15% |
| Coefficient of Friction (dynamic) | 0.05 – 0.10 |
| Thermal Conductivity | 0.25 W/m·K |
*Typical values for virgin PTFE grade. Filled grades may vary.
📐 Standard Dimensions & Forms
Kaxite offers custom PTFE packing in a variety of sizes and packaging options:
- ▸ Cross‑Section: 3mm – 50mm (square, round, rectangular)
- ▸ Form: Coils (5 kg, 10 kg) or pre‑cut rings
- ▸ Color: White (virgin), black/grey (graphite), brown (aramid)
- ▸ Custom Marking: Branding, size tags available
- ▸ Packaging: Plastic spools, cartons, or wooden cases
OEM/ODM – provide specifications for a fast, accurate quotation.
🏭 Typical Applications
- ▸ Chemical Processing: Pump and valve stem seals handling acids, caustics, solvents, and hydrocarbons.
- ▸ Pharmaceutical & Biotech: Fermenters, centrifuges, CIP/SIP systems – non‑contaminating.
- ▸ Food & Beverage: Homogenizers, filling machines, mixers – FDA‑compliant grades.
- ▸ Power Generation: Boiler feed pumps, cooling water systems, chemical dosing.
- ▸ Water & Wastewater: Chlorination systems, ozone dosing, sludge pumps.
- ▸ Oil & Gas: Pipeline valves, refinery pumps, wellhead equipment.
Explore our full range of braided packing and PTFE products.
🏅 Why Source from Kaxite?
- ✔ China-based PTFE expert – 25+ years of fluoropolymer manufacturing.
- ✔ ISO 9001:2015 certified – consistent quality and full traceability.
- ✔ In‑house braiding and impregnation – full control over quality.
- ✔ Wholesale factory pricing – competitive for bulk and OEM orders.
- ✔ Exported to 40+ countries – reliable logistics (FOB Ningbo / CIF).
🏗️ Precision Braiding & Impregnation Technology
Our advanced braiding machines ensure uniform density and consistent cross‑section, while controlled impregnation processes distribute graphite, MoS₂, or other lubricants evenly – delivering reliable sealing performance and extended service life in critical rotating equipment.
ISO 9001:2015 Full Traceability
📦 How to Order PTFE Packing – OEM & Bulk
1 Select Grade
Virgin, graphite, aramid, or MoS₂ – based on media and temperature.
2 Specify Size
Cross‑section (mm) and form (coil or rings).
3 Quantity
Low MOQ – from samples to truckloads.
4 Shipping
FOB Ningbo, CIF, or EXW – express air or sea freight.
Frequently Asked Questions
Q: How do I select the right PTFE packing grade?
A: Consider the process fluid (chemical compatibility), temperature, pressure, shaft speed, and any special requirements (e.g., FDA, purity). For aggressive chemicals at high temperatures, graphite‑impregnated grades are recommended; for abrasive slurries, glass‑reinforced; for ultra‑pure service, 100% virgin PTFE.
Q: Can PTFE packing be used in rotating pumps?
A: Yes, it is widely used in centrifugal pumps. Ensure proper shaft speed, cooling/lubrication (lantern ring flush), and correct gland torque. Kaxite offers grades with enhanced thermal conductivity and low friction for pump service.
Q: What is the proper installation procedure?
A: Clean the stuffing box thoroughly. Cut rings accurately with square ends. Install rings one at a time, staggering joints 90° apart. Seat each ring firmly with a split installation tool. Apply initial gland compression finger‑tight + 1/4 turn, then run‑in and adjust to slight drip (for pumps) or minimal leakage for valves.
Q: Do you provide material certificates?
A: Absolutely. Every batch is supplied with a material test certificate detailing density, tensile, elongation, and other properties per international standards, along with traceability to raw material lots.
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