Product

PTFE Expanded Sheet

PTFE expanded sheets offer compressibility and dependable sealing performance for demanding flange services.

High purity Low friction Custom machined

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Product Overview

Application and service highlights

Introduction

PTFE expanded sheets are manufactured for compressible sealing duties where flange irregularities and surface variation must be accommodated. They are commonly applied in chemical plants for gasketing on equipment handling aggressive media.

Key Features

Compressible structure helps seal imperfect flange surfaces.
Suitable for chemical service where soft conformable gasketing is needed.
Offers PTFE-based media resistance with easier seating characteristics.

Specifications

Material, dimensions and testing standards

Material

Base Material: Virgin PTFE or engineered polymer grades based on application.
Options: Filled PTFE and high-performance engineering plastics available.
Finish: Supplied in moulded, extruded, skived or machined form.

Dimensions

Manufactured in standard stock sizes with cut-to-length options.
Thickness, OD and ID ranges available to suit application demands.
Custom machining supported for functional industrial components.

Testing

Batch inspection for surface finish and dimensional accuracy.
Material verification available on request.
Finished parts reviewed against order-specific tolerances.

Technical Drawing

Cross-sectional reference

Dimensional Specifications

Dimensional table

Size		Diameter (D)	Raised Face (R/F)	P.C.D (K)	Flange Thick. (T)	No. of Holes (N)	Hole Dia (B)	Lining Thickness (±0.5mm)	Length ± 5mm (Max L)
NB	Inch
25	1"	33.7	50	79	15	4	15	3	1000
40	1.5"	48.3	65	95	17	4	18	3	1000
50	2"	60.3	80	127	19	4	19	3	1000
80	3"	88.9	100	152	22	4	22	3	1000
100	4"	114.3	125	178	24	8	22	3	1000