Armor-O-Rings™ / PTFE-FEP Encapsulated O-Rings

91 Pages·2004·4.4 MB·English

The Seal Man’s O-Ring Handbook™
Armor-O-Rings™ / PTFE-FEP Encapsulated O-Rings
Armor-O-Rings™ are produced using a thin PTFE
shielded tubing fully encasing an elastomeric rubber-
like core. The outer jacket protects the resilient core
from the fluids which the O-Ring contacts. This unique
combination enables the Armor-O-Ring to give maxi-
mum protection in even the harshest environment.
PTFE is an ideal sealing material, however, it is not
resilient by itself. The elastomeric core material,
either silicone or Viton®, gives the outer PTFE shield
the memory required to effect a proper seal. It will provide an
excellent seal in high temperatures, aggressive chemical expo-
sure and still remain elastic.
The Armor-O-Ring™ style EOV and EOS have a PTFE-FEP jack-
et with a minimum thickness of .008”. This casing is far supe-
rior to a simple coating of PTFE. Illustration (A) below show
the typical wall thickness relative to the cross section of the
O-Ring. The PTFE shield is virtually chemically inert and resists most chemicals, except
molten metals, fluorine at higher temperatures, and certain complex halogenated
compounds.
Illustration (A)
O-Ring Width Wall Thickness Width Minimum I.D.
Inch Inch MM Inches MM Inches
.070 .008 1.60 0.063 7.64 0.301
.103 .010 1.78 0.070 7.64 0.301
.139 .012 2.00 0.078 7.64 0.301
.210 .015 2.40 0.095 9.19 0.362
.275 .020 2.50 0.098 9.19 0.362
2.62 0.103 9.19 0.362
Type Armor-O-Ring™ EOV 3.00 0.118 12.00 0.472
3.53 0.139 13.10 0.515
Construction: Core made using Viton® fluorolastomer core
4.00 0.158 18.00 0.708
with PTFE-FEP encapsulation.
4.50 0.177 23.10 0.911
Uses: Chemically resistant to most fluids and gases, except
5.00 0.197 23.10 0.911
molten alkali metals, fluorine at elevated temperatures and
5.33 0.210 23.10 0.911
some complex halogens. Especially suited for oils and solvents.
5.70 0.224 50.00 1.968
Temperature: -40° to 205°C / -40° to 401°F 6.00 0.236 50.00 1.968
6.30 0.248 50.00 1.968
6.99 0.275 50.00 1.968
Type Armor O-Ring™ EOS
7.50 0.295 50.00 1.968
Construction: Core made using silicone rubber core with 8.00 0.315 50.00 1.968
PTFE-FEP encapsulation. 9.00 0.354 101.60 4.000
Uses: Excellent for cryogenic applications, broad chemical 9.50 0.374 127.00 5.000
application and most any application requiring a resilient, 10.00 0.394 127.00 5.000
chemical resistant seal. 11.00 0.433 127.00 5.000
12.00 0.472 152.40 6.000
Temperature: -73° to 205°C / -99° to 401°F
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The Seal Man’s O-Ring Handbook™
Armor-O-Rings™ / PTFE-FEP Encapsulated O-Rings
Where can Armor-O-Rings™ be used?
• Flanges - Excellent for grooved face
flanges.
• Valve Assemblies - Superior
performance to
standard O-Rings
contacting steam,
air, gases and
toxic, hazardous
materials.
• Tank Valves - Broad range of chemical coverage reducing maintenance costs.
• Mechanical Seals - Internal O-Rings within the shaft seal, water to
petrochemicals.
• Pipe Fittings - Versatile as an option to a flat gaskets - requires a groove.
• Hose Coupling - Special shapes for quick disconnect couplings.
Glassware - Low compression for fragile flanges and fittings.
• Food Equipment - Suitable for food, beverage and pharmacuetical equipment.
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The Seal Man’s O-Ring Handbook™
Armor-O-Rings™ Material Selection Guide
Hardness
Seal Temperature
Machined Molded Color Information
Material Limits
O-Ring O-Ring
EOS Use in: To improve O-Ring
performance in difficult
Armor-O-Rings™ applications where silicone
Silicone Core N/A 70 Orange -40 to 401°F O-Rings alone fail.
(core) with
Also referred to as: Description: Armor-O-Rings™
Teflon® Encapsulated opaque
EOS are produced using a thin
Silicone O-Rings, shell -40 to 205°C PTFE shielded tubing fully
PTFEEncapsulated
encasing a silicone rubber core.
Silicone O-Rings, See page 37 for a
The outer jacket protects the
PTFE-FEPEncapsulated
Silicone O-Rings hardness scale. resilient silicone core from the
fluids the O-Ring contacts.
Characteristics: Semi-rigid
PTFE-FEP tubing fully
encapsulating the silicone core
material.
Material: PTFE-FEP jacket with
a minimum thickness of .008”
over a silicone core.
Hardness
Seal Temperature
Machined Molded Color Information
Material Limits
O-Ring O-Ring
EOV Use in: To improve O-Ring
performance in difficult
Armor-O-Rings™ applications where Viton®
Viton® Core N/A 75 Black -99 to 401°F alone fails.
(core) with
Also referred to as: Description: Armor-O-Rings™
Teflon® Encapsulated opaque
EOV are produced using a thin
Viton® O-Rings, PTFE shell -73 to 205°C PTFE shielded tubing fully
Encapsulated Viton®
encasing a Viton® elastomeric
O-Rings, PTFE-FEP
See page 37 for a
core. The outer jacket protects
Encapsulated Viton®
O-Rings hardness scale. the resilient Viton® core from
the fluids which the O-Ring
contacts.
Characteristics: Semi-rigid
PTFE-FEP tubing fully encapsu-
lating the Viton® core material.
Endless. No joints.
Material: PTFE-FEP jacket with
a minimum thickness of .008”
over a Viton® core.
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The Seal Man’s O-Ring Handbook™
Armor-O-Rings™ / PTFE-FEP Encapsulated O-Rings
I N C H
W
SIZING CHART
OD ID
Click here to see pages 114-124 for an inch sizing chart.
Click here to see pages 114-124 for an inch sizing chart.
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The Seal Man’s O-Ring Handbook™
Armor-O-Rings™ / PTFE-FEP Encapsulated O-Rings
METRIC
W
SIZING CHART
OD ID
Click here to see pages 125-158 for a metric sizing chart.
Click here to see pages 125-158 for a metric sizing chart.
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The Seal Man’s O-Ring Handbook™
Groove Dimensions W GW(c)
OD ID
Bore
Dia.
-
c
e
i
tc
aa
tF
S
GW(b) -
GD(a)
Rod
Dia.
0°-5°
Break Corners
c Aprrox.
mi GW(a) .005 RAD GW
GW a 1-4µ
n
y r
D
GD
GD
1-4µ
Dynamic and Static Face Type
Surface finish: Surface finish:
rod/cylinder bore, Rt = 1-4µ seal contact area, Rt = 6-16µ
base of groove, static Rt = 6-16µ base of groove, Rt = 6-16µ
base of groove, dynamic Rt = 6-10µ pulsating pressure, Rt = 6-16µ Groove Detail
Dynamic and Static Face Type Radius
Inch Metric Groove Groove Width Groove Groove
O-Ring O-Ring Depth GW + 0.2 GW(a) GW(b) Depth Width Without With
1 BU 2 BU Back-up Back-up
W W GD + 0.06 Tol. + 0.2 GD(a) GW(c) Ring Ring
Tol. + 0.06 Tol. + 0.2 Tol. + 0.2 Tol. + 0.1 Tol. + 0.2
- 1.00 0.80 1.40 - - 0.65 1.40 0.2 0.2
- 1.02 0.80 1.40 - - 0.65 1.40 0.2 0.2
- 1.10 0.90 1.50 - - 0.75 1.50 0.2 0.2
- 1.12 0.90 1.50 - - 0.75 1.50 0.2 0.2
- 1.15 0.90 1.50 - - 0.75 1.50 0.2 0.2
- 1.20 0.95 1.70 - - 0.80 1.70 0.2 0.2
- 1.25 1.00 1.80 - - 0.85 1.80 0.2 0.2
- 1.27 1.00 1.80 - - 0.85 1.80 0.2 0.2
- 1.30 1.05 1.80 - - 0.90 1.80 0.2 0.2
- 1.42 1.15 1.90 - - 0.95 1.90 0.2 0.2
- 1.45 1.15 1.90 - - 0.95 1.90 0.2 0.2
- 1.60 1.30 2.20 - - 1.10 2.20 0.3 0.2
.070” (1/16”) 1.78 1.45 2.40 3.80 5.20 1.20 2.40 0.4 0.2
- 1.80 1.45 2.40 3.80 5.20 1.20 2.40 0.4 0.2
- 1.90 1.65 2.50 3.90 5.30 1.40 2.50 0.5 0.2
- 2.00 1.65 2.50 3.90 5.30 1.40 2.50 0.5 0.2
Note: 1µ ~ 4 ¯¯¯~ 4RMS ~ 4 micro inches
~ √ ~ ~
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The Seal Man’s O-Ring Handbook™
Groove Dimensions W GW(c)
(continued)
OD ID
Bore
Dia.
-
c
e
i
tc
aa
tF
S
GW(b) -
GD(a)
Rod
Dia.
0°-5°
Break Corners
c Aprrox.
mi GW(a) .005 RAD GW
GW a 1-4µ
n
y r
D
GD
GD
1-4µ
Dynamic and Static Face Type
Surface finish: Surface finish:
rod/cylinder bore, Rt = 1-4µ seal contact area, Rt = 6-16µ
base of groove, static Rt = 6-16µ base of groove, Rt = 6-16µ
base of groove, dynamic Rt = 6-10µ pulsating pressure, Rt = 6-16µ Groove Detail
Dynamic and Static Face Type Radius
Inch Metric Groove Groove Width Groove Groove
O-Ring O-Ring Depth GW + 0.2 GW(a) GW(b) Depth Width Without With
1 BU 2 BU Back-up Back-up
W W GD + 0.06 Tol. + 0.2 GD(a) GW(c) Ring Ring
Tol. + 0.06 Tol. + 0.2 Tol. + 0.2 Tol. + 0.1 Tol. + 0.2
- 2.20 1.85 2.90 4.30 5.70 1.55 2.90 0.5 0.3
- 2.40 2.00 3.20 4.60 6.00 1.70 3.20 0.5 0.3
- 2.50 2.10 3.40 4.80 6.20 1.80 3.40 0.5 0.3
.103” (3/32”) 2.62 2.25 3.60 5.00 6.40 1.90 3.60 0.6 0.3
- 2.65 2.25 3.60 5.00 6.40 1.90 3.60 0.6 0.3
- 2.70 2.30 3.70 5.10 6.50 1.95 3.70 0.6 0.3
- 3.00 2.50 3.90 5.30 6.70 2.20 3.90 0.8 0.3
- 3.10 2.70 4.00 5.40 6.80 2.30 4.00 0.8 0.4
- 3.50 3.10 4.80 6.20 7.60 2.70 4.80 1.0 0.4
.139” (1/8”) 3.53 3.10 4.80 6.20 7.60 2.70 4.80 1.0 0.4
- 3.55 3.10 4.80 6.20 7.60 2.70 4.80 1.0 0.4
- 4.00 3.50 5.40 7.10 8.80 3.10 5.40 1.0 0.4
- 4.50 4.00 6.00 7.70 9.40 3.40 6.00 1.0 0.4
- 5.00 4.30 6.70 8.40 10.10 3.90 6.70 1.0 0.4
.210” (3/16”) 5.33 4.70 7.10 8.80 10.50 4.30 7.10 1.2 0.6
- 5.50 4.80 7.30 9.00 10.70 4.40 7.30 1.2 0.6
Note: 1µ ~ 4 ¯¯¯~ 4RMS ~ 4 micro inches
~ √ ~ ~
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The Seal Man’s O-Ring Handbook™
Groove Dimensions W GW(c)
(continued)
OD ID
Bore
Dia.
-
c
e
i
tc
aa
tF
S
GW(b) -
GD(a)
Rod
Dia.
0°-5°
Break Corners
c Aprrox.
mi GW(a) .005 RAD GW
GW a 1-4µ
n
y r
D
GD
GD
1-4µ
Dynamic and Static Face Type
Surface finish: Surface finish:
rod/cylinder bore, Rt = 1-4µ seal contact area, Rt = 6-16µ
base of groove, static Rt = 6-16µ base of groove, Rt = 6-16µ
base of groove, dynamic Rt = 6-10µ pulsating pressure, Rt = 6-16µ Groove Detail
Dynamic and Static Face Type Radius
Inch Metric Groove Groove Width Groove Groove
O-Ring O-Ring Depth GW + 0.2 GW(a) GW(b) Depth Width Without With
1 BU 2 BU Back-up Back-up
W W GD + 0.06 Tol. + 0.2 GD(a) GW(c) Ring Ring
Tol. + 0.06 Tol. + 0.2 Tol. + 0.2 Tol. + 0.1 Tol. + 0.2
- 5.70 5.00 7.70 9.40 11.10 4.60 7.70 1.2 0.6
- 6.00 5.30 8.20 9.90 11.60 4.80 8.20 1.2 0.6
.275” (1/4”) 6.99 6.10 9.50 12.00 14.50 5.80 9.50 1.5 0.6
- 7.00 6.10 9.50 12.00 14.50 5.80 9.50 1.5 0.6
- 7.20 6.20 9.80 12.30 14.80 5.90 9.80 1.5 0.6
- 7.50 6.50 14.40 12.90 15.40 6.20 10.40 1.5 0.6
- 8.00 7.00 11.00 13.50 16.00 6.60 11.00 1.5 0.6
- 8.40 7.50 11.70 14.20 16.70 6.90 11.70 2.0 0.6
- 9.00 7.80 12.50 15.00 17.50 7.40 12.50 2.0 0.6
- 9.50 8.30 13.30 15.80 18.30 7.80 13.30 2.0 0.6
- 10.00 8.70 13.50 16.00 18.50 8.30 13.50 2.0 0.6
- 11.00 9.60 15.50 18.00 20.50 9.10 15.50 3.0 0.6
- 12.00 10.50 16.80 19.30 21.80 10.30 16.80 3.0 0.6
- 14.00 12.20 19.00 21.50 24.00 11.60 19.00 3.0 0.6
- 15.00 13.20 20.00 22.50 25.00 12.50 20.00 3.0 0.6
- 16.00 14.00 21.50 24.00 26.50 13.50 21.50 3.0 0.6
Note: 1µ ~ 4 ¯¯¯~ 4RMS ~ 4 micro inches
~ √ ~ ~
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The Seal Man’s O-Ring Handbook™
O-Ring Material Rankings by
Maximum Recommended Gap Clearance in Inches
Based on O-Ring Durometer and Fluid Pressure
(see page 37)
Table Legend
- Shore A Durometer Scale -
Note: 1 Bar ≈ 14.5 PSI
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The Seal Man’s O-Ring Handbook™
O-Ring Material Rankings by
Maximum Recommended Gap Clearance in Metric (mm)
Based on O-Ring Durometer and Fluid Pressure
(see page 37)
Table Legend
- Shore A Durometer Scale -
Note: 1 Bar ≈ 14.5 PSI
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