Non-Asbestos & PTFE Gaskets: ASME B16.21, CNAF, PTFE, graphite. Get quotes from verified suppliers on MetalMitra.
- Non-Asbestos & PTFE Gaskets
- Gaskets & Sealing
- ASME B16.21
- CNAF
- PTFE
- graphite
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Specifications
| Standard | ASME B16.21, EN 1514-1 |
|---|---|
| Material | CNAF, PTFE, expanded PTFE, flexible graphite, rubber |
| Thickness | 1.5 mm, 3 mm |
| Type | Full face, ring (IBC) |
| Size | 1/2" to 48" |
Source Non-Asbestos & PTFE Gaskets from verified manufacturers, mills and stockists on MetalMitra. Soft-cut non-metallic gaskets for low- and medium-pressure flanges in water, steam, oil and chemical service.
Share your size, grade, quantity and delivery location once, and compare offers from suppliers who stock or manufacture Non-Asbestos & PTFE Gaskets to ASME B16.21.
What you can source
- Spiral Wound Gaskets — Metal windings with graphite or PTFE filler.
- Ring Joint Gaskets — R, RX and BX rings for RTJ flanges.
- Non-Metallic Gaskets — CNAF, PTFE and graphite sheet gaskets.
- Kammprofile & Jacketed — For heat exchangers and high-temperature joints.
Key properties
- Leak-Tight Joints — Reliable sealing across pressure classes.
- Temperature Range — Options from cryogenic to high-temperature service.
- Standard Sizes — Made to ASME B16.20 / B16.21 dimensions.
- Custom Shapes — Non-standard and heat exchanger gaskets to drawing.
Applications & industries
- Flange Joints
- Heat Exchangers
- Pressure Vessels
- Pipelines
- Valves & Pumps
- Refineries
Testing & documentation
Inspection and documentation for Non-Asbestos & PTFE Gaskets follow ASME B16.21, EN 1514-1 plus any extra requirements in your PO.
- Dimensional inspection
- Material certification
- Compression / recovery test as applicable
- Hardness test for RTJ gaskets
- Manufacturer Test Certificate
Why source on MetalMitra
- Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
- One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
- Full traceability — Heat numbers, test certificates and third-party inspection on request.
- Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.
Request pricing
Post an RFQ for Non-Asbestos & PTFE Gaskets with your drawing or specification and receive quotes from verified suppliers.
Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the test certificate.
Applications & industries
- Flange Joints
- Heat Exchangers
- Pressure Vessels
- Pipelines
- Valves & Pumps
- Refineries
- Oil & Gas
- Petrochemical & Refining
- Power Generation
- Chemical Processing
- Water & Wastewater
Testing & documents
Ask for the documents you need in your requirement — suppliers confirm them in their quotation:
- Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
- Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
- Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests
FAQs
Spiral wound gaskets are common; RTJ gaskets are used with ring-type joint flanges.
ASME B16.20 covers spiral wound and ring joint gaskets.
Flange size, pressure class, flange standard, materials and temperature.
Need Non-Asbestos & PTFE Gaskets?
Share grade, size, quantity and delivery location. We compare suitable suppliers and come back with a clear quotation.
