Description

Flexi-Steel™ PTFE (TFM) + 316L Stainless Sanitary Tri-Clamp™ Gaskets | USA Lab

Flexi-Steel™ sanitary gaskets are an industry leader in high-temperature gasket technologies, combining the chemical resistance of PTFE (TFM) with the strength and stability of 316L passivated stainless steel. Designed to deliver flexibility similar to standard PTFE gaskets, Flexi-Steel™ is ideal for sanitary clamp (Tri-Clamp™) connections where leak-proof performance and durability are critical.

Engineered for demanding steam service and broad process compatibility, this gray gasket material provides outstanding durability, superior creep resistance, and minimal thermal expansion—helping maintain seal integrity through expansion and contraction in both extreme cold and high heat conditions.

Widely used throughout food, beverage, dairy, pharmaceutical, and biotech sanitary process industries, Flexi-Steel™ offers a non-stick surface, excellent chemical resistance, and strong rouging resistance thanks to its chromium-nickel stainless content.

Sanitary gasket materials should be verified for fitment and compatibility prior to installation.
Not recommended for highly concentrated acids or extreme CIP/SIP conditions beyond stated limits.

PTFE (TFM) + 316L SS Blend Steam Service Ready FDA + USP Class VI -320°F to 550°F

Temperature: -320°F to 550°F (continuous)

Material: PTFE (TFM) blended with 316L passivated stainless steel

Compliance: FDA compliant & USP Class VI

Why buy from USA Lab

Expert Support
Engineers & technicians on staff.

Quality First
Tested and trusted products.

Fast Fulfillment
Nationwide 1-2 day shipping.

Warranty & Parts
US-based service & spares.

Why Flexi-Steel™ sanitary gaskets?

Outstanding steam performance — a top choice gasket material for steam service with reliable, leak-proof sealing.
Superior creep resistance — maintains clamp load and seal integrity under heat cycling.
Minimal thermal expansion — excellent expansion/contraction stability for extreme cold to high heat use.
Non-stick surface — helps reduce build-up and supports clean sanitary connections.
Rouging resistance — chromium-nickel stainless content offers very good resistance to rouging.

Talk to an expert

Get sizing help, material selection guidance, and process compatibility tips.

Call 734-855-4890

Technical Specifications

Model	Flexi-Steel™ Sanitary Tri-Clamp™ Gasket Material
Material	Flexi-Steel™ (PTFE / TFM blended with 316L Passivated Stainless Steel)
Color	Gray
Temperature Range	-320°F to 550°F (continuous max)
Compliance	FDA compliant; USP Class VI
Animal Derived	Animal Derived Ingredient Free (ADIF)
Durometer Hardness	D68
Creep Resistance	Superior creep resistance
Thermal Expansion	Minimal thermal expansion; excellent expansion/contraction stability
Surface	Non-stick
Steam-in-Place (SIP)	Excellent
Clean-in-Place (CIP)	Limited (process dependent)
Alkalies	Excellent
Alcohols, Glycols	Excellent
Animal Oils & Fats	Yes
Vegetable Oil	Excellent
Water	Excellent
Soaps, Bleaches, Detergents	Excellent
Acids (Dilute)	Excellent

Popular Industries & Use Cases

Food & Beverage Dairy Processing Pharmaceutical Biotech & Sanitary Processing

Business Solutions & Procurement

Programs & Terms

Exclusive options for businesses and academics.

Apply for Net Terms Academic Discount

Documentation & Compliance

Keep purchasing streamlined and compliant.

Request a Quote Tax Exemption

Custom Solutions

Tailored tanks, skids, and integration help.

Custom Request Consulting

Talk to Sales

We’ll help spec the right system for your throughput.

Call 734-855-4890 Email Sales/Support

FAQ

What is Flexi-Steel™ gasket material?

Flexi-Steel™ is a compound blend of PTFE (TFM) and 316L passivated stainless steel used to manufacture high-performance sanitary gaskets. Flexi-Steel™ offers flexibility similar to standard PTFE while improving durability, creep resistance, and thermal stability.

What temperature range can Flexi-Steel™ sanitary gaskets handle?

Flexi-Steel™ sanitary gaskets are rated from -320°F to 550°F (continuous max temperature 550°F), supporting both extreme cold and high heat conditions while maintaining minimal thermal expansion.

Are Flexi-Steel™ Tri-Clamp™ gaskets compliant for sanitary use?

Yes. Flexi-Steel™ gasket material is gray in color and is compliant with FDA requirements and USP Class VI criteria, making it widely used in food, beverage, dairy, pharmaceutical, and biotech sanitary process industries.

Is Flexi-Steel™ suitable for steam-in-place (SIP) applications?

Yes. Flexi-Steel™ is a preferred material for steam service and offers excellent steam-in-place (SIP) performance with an outstanding leak-proof seal in sanitary clamp (Tri-Clamp™) connections.

Important Shipping Notice!

DISCLAIMER:

All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.

Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.