China Hi-Quality Virgin Plastic Teflon PTFE Washer Manufacturer & Supplier
- Payment Way: T/T, Western Union, Paypal
- Incoterm: EXW, FOB, CIF
- Shipping Way: By Air or Sea
- Manufacturer Place: Ningbo, China
- Delivery Time: 7 - 30 days
- Factory Status: Stocked for Sale
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Description
A PTFE washer, often called a Teflon washer, is a flat, ring-shaped spacer with a hole in the middle. Made from a special plastic called Polytetrafluoroethylene, it can be mixed with other materials like glass fibre, carbon, graphite, or bronze to make it stronger or improve performance.
This type of washer is super slippery—it resists sticking and lubricates itself. It also handles extreme temperatures, ranging from freezing to 260°C, without breaking down. Unlike nylon washers, which are often used for electrical insulation, PTFE washers excel in harsh chemical and high-heat environments where other materials would fail.
Savvy provides both premium virgin PTFE washers for critical applications and cost-effective recycled PTFE washers for general use. We also specialise in producing custom PTFE washers tailored to your specific requirements or drawings.
Specifications
- Material: PTFE / Teflon
- Allowed Fillers: Glass Fibre, Carbon Fibre, Graphite, MoS₂, Bronze, etc.
- Temperature Range / Rating: -100 °C (-148 °F) to 280°C (536 °F)
- Low Operating Temperature Limit: -100 °C (-148 °F)
- High Operating Temperature Limit: 280 °C (536 °F)
- Durometer Hardness Range: Fixed
- Standard Durometer Hardness: Shore D 55
- Color: Natural, white, black, custom color is available
- Outline: Round
- Profile Shape: Flat
- Outside Diameter (OD): 2 to 400 mm (0.079 to 15.748 inch)
- Thickness (T): 0.25 to 100 mm (0.010 to 3.937 inch)
- Manufacturing Process: CNC Machining (no mold needed and MOQ)
- Standard Size: ISO 7089 (metric) and ASME B18.21.1 (imperial)
- Shelf Life: About 20 years
- Price Level: Normal
Flat PTFE Washer Sizes
Standard PTFE washers adhere to strict dimensional specifications governed by three core parameters: Inner Diameter (ID) for fastener clearance, Outer Diameter (OD) for load distribution, and Thickness (T) / Height (H) for structural integrity. Unlike rubber, plastic leverages CNC machining to achieve exceptional precision.
Global standards ISO 7089 (metric) and ASME B18.21.1 (imperial) enforce tolerances up to ±0.05mm. Savvy possesses the advanced engineering capability and flexible production capacity to develop and deliver fully customized plastic nylon washer seal solutions tailored to your unique application requirements.
The special PTFE disc is a solid, flat washer with no central hole (Inside Diameter = 0).
PTFE Washer Advantages VS Nylon Washer
As essential engineering components, Nylon washers deliver critical performance advantages:
- PTFE washers offer superior chemical resistance compared to nylon, handling harsh acids and solvents without degrading.
- They operate effectively across a much wider temperature range, from extreme cold to heat, where nylon would fail.
- The naturally slippery surface of PTFE provides excellent self-lubrication and a permanent non-stick quality.
- PTFE washers are non-absorbent and resist water, steam, and moisture far better than nylon washers.
- Specific in-filled PTFE grades can provide enhanced mechanical strength and wear resistance for demanding applications.
Chemical Resistance Properties
Excellent
- Ozone
- Weather
- Chemical
- Oils
- Watertight
- Abration
- Acids
- Bases
- Flame
Good
- Steam
Fair
- Tensile Strength
Poor
- Deformation
Applications
PTFE washers are extensively used in chemical processing equipment such as pumps, valves, reactors, and piping systems where exceptional corrosion resistance is required. Their ability to withstand harsh acids, alkalis, and solvents while maintaining a seal under extreme temperatures makes them indispensable in industries like pharmaceuticals, semiconductor manufacturing, and industrial chemical production.
In everyday and specialised equipment, PTFE washers provide reliable performance in applications ranging from household plumbing (e.g., faucet seals) to automotive systems (e.g., fuel systems, brake components) and food processing machinery. Their non-stick and non-contaminating properties ensure hygiene and prevent material adhesion, making them ideal for use in medical devices, laboratory apparatus, and food handling equipment where cleanliness and durability are critical.