CMS Engineered Products LLC Corrosion Management Systems
CMS Engineered Products LLCCorrosion Management Systems
FEP encapsulated o-rings

FEP / PFA Encapsulated O-Rings:

Combining the best qualities of two gasket/o-ring materials, FEP or PFA (see below) on the exterior to handle aggressive chemical and temperature environments, coupled with the more resilient elastomer on the interior (fully encapsulated) to provide proper shape and elasticity under load. Available from 0.063” cross-section up to 1-1/4” cross-section size. Used primarily as a static (non-dynamic) axial or radial seal. Manufactured in sizes to AS 568A industry standards. Also available in metric (ISO) sizes. Square (or rectangular) cross-sections are available for added sealing surface, as well.

Silicone is the standard fully encapsulated elastomer, with Viton® or EPDM also available as options.

FEP (fluorinated ethylene propylene) exterior surface offered as standard up to +400.deg.F temperature;

PFA (perfluoroalkoxy) used to reach upwards to +500.deg.F temperature in severe service environments.

 

Benefits of FEP encapsulated o-rings:

● excellent chemical resistance to most industrial chemicals;

● low coefficient of friction;

● low compression set;

● temperature range from -75.deg.F to +400.deg.F;

● choice of elastomer core;

● FDA-compliant materials available; USP Class VI approved materials available.

 

Benefits of PFA encapsulated o-rings (same as above, with the following added benefits):

● higher temperature applications up to +500.deg.F;

● higher mechanical strength with longer flex life;

● low vapor permeation;

● excellent stress- and crack-resistance;

● longer wearability. 

 

Square (or rectangular) cross-sectional seals / gaskets:

● larger sealing surface vs. an o-ring profile;

● less force required for sealing, effecting a more positive seal.

Cross-section (in.)

Cross-section (mm)

 (FEP or PFA) wall thickness (in.)

Groove depth (in.)

Groove width (in.)

.063 ± .004

1.60 ± 0.10

0.01

0.046

0.087

.070 ± .004

1.78 ± 0.10

0.01

0.049

0.1

.079 ± .004

2.00 ± 0.10

0.01

0.057

0.111

.094 ± .004

2.40 ± 0.10

0.01

0.069

0.127

.098 ± .004

2.50 ± 0.10

0.01

0.074

0.132

.103 ± .004

2.62 ± 0.10

0.01

0.078

0.137

.118 ± .004

3.00 ± 0.10

0.01

0.088

0.157

.122 ± .004

3.10 ± 0.10

0.01

0.092

0.161

.125 ± .004

3.20 ± 0.10

0.01

0.095

0.164

.134 ± .005

3.40 ± 0.13

0.01

0.104

0.174

.139 ± .005

3.53 ± 0.13

0.012

0.108

0.178

.150 ± .006

3.80 ± 0.15

0.012

0.118

0.191

.157 ± .006

4.00 ± 0.15

0.012

0.125

0.201

.170 ± .006

4.30 ± 0.15

0.015

0.135

0.217

.177 ± .006

4.50 ± 0.15

0.015

0.14

0.226

.187 ± .006

4.75 ± 0.15

0.015

0.147

0.238

.197 ± .006

5.00 ± 0.15

0.015

0.157

0.248

.210 ± .006

5.33 ± 0.15

0.015

0.165

0.267

.217 ± .007

5.50 ± 0.18

0.015

0.172

0.276

.225 ± .007

5.70 ± 0.18

0.015

0.178

0.284

.236 ± .007

6.00 ± 0.18

0.015

0.19

0.296

.250 ± .008

6.35 ± 0.20

0.02

0.2

0.313

.275 ± .008

7.00 ± 0.20

0.02

0.225

0.338

.295 ± .012

7.50 ± 0.30

0.02

0.24

0.364

.315 ± .015

8.00 ± 0.38

0.02

0.257

0.39

.331 ± .015

8.40 ± 0.38

0.02

0.267

0.41

.354 ± .020

9.00 ± 0.30

0.02

0.29

0.434

.375 ± .020

9.53 ± 0.38

0.02

0.306

0.46

.394 ± .020

10.00 ± 0.51

0.02

0.322

0.484

.437 ± .020

11.10 ± 0.51

0.03

0.355

0.53

.472 ± .020

12.00 ± 0.51

0.03

0.393

0.571

.500 ± .020

12.70 ± 0.51

0.03

0.401

0.62

.562 ± .025

14.30 ± 0.64

0.03

0.45

0.689

.591 ± .025

15.00 ± 0.64

0.03

0.466

0.736

.625 ± .025

15.90 ± 0.64

0.03

0.5

0.77

.708 ± .025

18.00 ± 0.64

0.03

0.565

0.9

.750 ± .025

19.00 ± 0.64

0.03

0.58

0.97

.787 ± .025

20.00 ± 0.64

0.03

0.6

1.032

1.000 ± .035

25.40 ± 0.89

0.045 (PFA only)

0.757

1.27

1.250 ± .050

31.75 ± 1.27

0.045 (PFA only)

0.94

1.585

 

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Contact Information

Address:

CMS Engineered Products LLC

235 W 54th Str.

Indianapolis, IN  46208

 

Please e-mail or phone your repair parts requirements

for a quick quotation to:

 

Phone: 

317.292.2914

 

E-Mail:

info@cmsengineeredproducts.com

 

OR  please use our easy Contact Us form

Corrosion resistant PTFE

We specialize in PTFE molded expansion joints / flex connectors - many in stock for immediate shipment; custom fabrication available upon request.

 

Please also review our fully PFA lined ball & butterfly valves, as well as our full line of PTFE lined hose products for your corrosive and/or aggressive fluid transfer application(s).

 

Biopharm, pharmaceutical, industrial-grade products available, many from inventory for immediate shipment.

All major credit cards accepted for immediate purchase
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