Virgin PTFE Gaskets

High-Purity PTFE Envelope Gasket for Chemical Flanges

Production of 4M diameter MAX PTFE Gaskets for Flange

Direct Factory Virgin PTFE Gasket Supplier & Pre-Cut Flange Seals

As a direct manufacturing ptfe gasket supplier, we supply precision pre-cut ptfe gaskets engineered strictly from 100% virgin PTFE sheet stock. Designed to deliver zero-leakage fluid sealing across severe chemical pipelines, reactors, and pharmaceutical processing equipment, each virgin ptfe gasket maintains universal chemical immunity across the entire 0-14 pH spectrum. Equipped with high-speed digital CNC knife cutters and precision punch presses, we produce standard flange ring gaskets, full face gaskets, and intricate custom geometries with razor-sharp edges and tight dimensional tolerances.

100% Pure Virgin Fluoropolymer Operating Temp: -180°C to +260°C Fast CAD/DXF Die-Cutting

Standard Virgin PTFE Gasket Formats

Explore our pre-cut international standard flange gaskets and specialized sealing profiles.

1. Raised Face Ring Gaskets (IBC)

Inside Bolt Circle (IBC) ring gaskets designed to fit inside flange bolts. Manufactured for high-pressure chemical piping systems and raised face flanges.

• Piping Standards: ANSI/ASME B16.21 (Class 150/300), DIN EN 1514-1 (PN10-PN40)

• Standard Thicknesses: 1.5mm, 2.0mm, 3.0mm

• Primary Uses: Chemical pipe flanges, valve bonnet seals, heat exchangers

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2. Full Face Flange Gaskets (FF)

Full Face (FF) gaskets featuring precision pre-punched bolt holes matching standard bolt circle diameters for flat face flanges and delicate plastic/FRP joints.

• Piping Standards: ASME B16.21, JIS B2404, DIN 2690

• Nominal Sizes: ½" to 24"+ (DN15 to DN600)

• Primary Uses: Flat face cast iron flanges, glass-lined steel, plastic piping

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3. Custom CAD Die-Cut & Envelope Gaskets

Precision CNC knife-cut custom gaskets from client CAD/DXF drawings, as well as PTFE envelope gaskets with elastomer or non-asbestos cores.

• Custom Capabilities: Oval, rectangular, multi-hole, or non-standard shapes

• Core Options: Pure PTFE or PTFE envelope with resilient rubber insert

• Primary Uses: Reactor manways, sight glass covers, specialized equipment

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Virgin PTFE Gasket Technical Parameters

Verified mechanical and chemical sealing property baselines for pure virgin PTFE gaskets.

Property Parameter	Test Standard	Virgin PTFE Value	Sealing Advantage
Apparent Density	ASTM D4894	2.13 - 2.20 g/cm³	Pin-hole free non-porous structure prevents fluid permeation
Tensile Strength	ASTM D4894	≥ 20.0 - 30.0 MPa	High tensile strength resists blowout under internal pipe pressure
Compressibility	ASTM F36	10% - 15%	Conforms well to standard smooth metallic flange faces
Recovery (Rebound)	ASTM F36	≥ 40% - 50%	Maintains active sealing force against mild thermal expansion
Operating Temperature Range	Thermal Boundary	-180°C to +260°C	Cryogenic to high-heat steam line temperature capability
Chemical Resistance	pH Spectrum	pH 0 - 14 Universal	Inert to strong acids, caustics, chlorine, and organic solvents

Key Performance Advantages of Virgin PTFE Gaskets

Universal Chemical Resistance

Resists attack from aggressive media across pH 0–14, eliminating media contamination and gasket degradation.

Zero Process Contamination

Made from 100% virgin fluoropolymer resin free of pigments, additives, or recycled scrap—ideal for ultrapure applications.

Non-Stick Flange Release

Naturally anti-stick surface allows fast, clean removal during plant maintenance overhauls without scraping metal flanges.

Precision CNC & Die Cutting

Automated cutting tools guarantee exact bolt hole alignment and clean inner/outer diameter profiles for rapid installation.

Target Industrial Application Fields

Trusted fluid sealing solutions across global process industries.

Chemical & Petrochemical Piping

Reliable flange gaskets for acid transfer lines, caustic scrubbers, solvent distillation, and chlorine headers.

Pharmaceutical & Fine Chemicals

High-purity sanitary gaskets for API reactors, cleanroom fluid transfer, and sterile filtration housings.

Cryogenic & Industrial Gases

Flange sealing for liquid nitrogen, LNG gasification, oxygen systems, and cold box equipment down to -180°C.

Semiconductor Ultrapure Water

Non-leaching, non-contaminating sealing gaskets for UPW distribution lines and chemical distribution modules.

Inquire Wholesale Pricing from Direct PTFE Gasket Supplier

Looking for a verified ptfe gasket supplier for standard ASME/DIN flange gaskets or custom CAD die-cut orders? Contact our sales engineering team for fast factory quotations and free material samples.

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