Parker O-Ring Handbook.pdf
Parker O-Ring Handbook.pdf Parker O-Ring Handbook.pdf
Static O-Ring Sealing 4-18 * 0° to 5° (Typ.) Surface finish X: 32 for liquids 16 for vacuum and gases 63 X R X G For Internal Pressure (outward pressure direction) dimension the groove by its outside diameter (H O) and width: (H O) = Mean O.D. of O-ring (see Table 4-1) Tolerance = Minus 1% of Mean O.D., but not more than -.060 For External Pressure (inward pressure direction) dimension the groove by its inside diameter (H) i and width: (H) i = Mean I.D. of O-ring (see Table 4-1) Tolerance = Plus 1% of Mean I.D., but not more than +.060 63 Break Cor ners Approx. .005 RAD. L Groove Depth (= Gland Depth) Parker O-Ring Handbook Face Seal Glands Gland Detail Finishes are RMS values (Refer to Design Chart 4-3 below) W L W W I.D. Section W-W .003 Max. O-Ring Face Seal Glands These dimensions are intended primarily for face type O-ring seals and low temperature applications. O-Ring Size W L G Groove Width R Parker Cross Section Gland Squeeze Vacuum Groove No. 2 Nominal Actual Depth Actual % Liquids and Gases Radius 004 through 050 1/16 .070 ±.003 (1.78 mm) .050 to .054 .013 to .023 19 to 32 .101 to .107 .084 to .089 .005 to .015 102 through 178 3/32 .103 ±.003 (2.62 mm) .074 to .080 .020 to .032 20 to 30 .136 to .142 .120 to .125 .005 to .015 201 through 284 1/8 .139 ±.004 (3.53 mm .101 to .107 .028 to .042 20 to 30 .177 to .187 .158 to .164 .010 to .025 309 through 395 3/16 .210 ±.005 (5.33 mm) .152 to .162 .043 to .063 21 to 30 .270 to .290 .239 to .244 .020 to .035 425 through 475 1/4 .275 ±.006 (6.99 mm) .201 to .211 .058 to .080 21 to 29 .342 to .362 .309 to .314 .020 to .035 Special 3/8 .375 ±.007 (9.52 mm) .276 to .286 .082 to .106 22 to 28 .475 to .485 .419 to .424 .030 to .045 Special 1/2 .500 ±.008 (12.7 mm) .370 to .380 .112 to .138 22 to 27 .638 to .645 .560 to .565 .030 to .045 Design Chart 4-3: Design Chart for O-Ring Face Seal Glands .005 Max. Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com
Dovetail Grooves It is often necessary to provide some mechanical means for holding an O-ring in a face seal groove during assembly and maintenance of equipment. An undercut or dovetail groove has proven benefi cial in many applications to keep the O-ring in place. This is an expensive groove to machine, however, and thus should be used only when absolutely necessary. It should be noted that although this method has been used successfully, it is not generally recommended. The inherent characteristics of the groove design limit the amount of void area. Normally acceptable tolerance extremes, wide service temperature ranges, and fl uid media that cause high swell of the elastomer are conditions that cannot be tolerated in this type of groove design. Parker O-Ring Handbook L 66° G Mean Groove Diameter Coincides With Mean O-ring Diameter. Finishes are RMS values O-Ring Dovetail Grooves Radius “R” is CRITICAL. Insuffi cient radius will potentially cause damage to the O-ring during installation, while excessive radius may contribute to extrusion. O-Ring Size AS568A- 004 through 050 102 through 178 201 through 284 309 through 395 425 through 475 W Cross Section Nominal Actual 1/16 3/32 1/8 3/16 1/4 Special 3/8 .070 ±.003 .103 ±.003 .139 ±.004 .210 ±.005 .275 ±.006 .375 ±.007 L Gland Depth Squeeze % .053 to 23 .055 .081 to 21 .083 .111 to 20 .113 .171 to 18 .173 .231 to 16 .234 .315 to 16 .319 G Groove Width (To sharp corner) .057 R R1 to .061 .083 .005 1/64 to .087 .113 .010 1/64 to .117 .171 .010 1/32 to .175 .231 .015 1/32 to .235 .315 .015 1/16 to .319 .020 3/32 NOTE: These design recommendations assume metal-to-metal contact. In special applications, for example in the semiconductor industry, deviation from these recommendations may be necessary. When designing with Parofl uor elastomers, one should take into consideration that perfl uorinated elastomers may require more squeeze than an FKM material to obtain optimum sealing performance. To increase squeeze, modifi cations of the design recommendations shown above are necessary. Design Chart 4-4: Dovetail Grooves R 1 Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com R Static O-Ring Sealing 4-19
- Page 47 and 48: Section III - O-Ring Applications 3
- Page 49 and 50: 3.1.2 Temperature Operating tempera
- Page 51 and 52: O-Lube has some unique advantages.
- Page 53 and 54: Parker Boss Kit Sizes Size Dimensio
- Page 55 and 56: Recovery Percent of Original Delect
- Page 57 and 58: 3.9.5 Fuels for Automobile Engines
- Page 59 and 60: Parker Seal produces a number of co
- Page 61 and 62: 3.9.16 Fungus-Resistant Compounds B
- Page 63 and 64: 3.9.17.2 Concentrates Containing Mi
- Page 65 and 66: Where temperatures do not go below
- Page 67 and 68: Permeability Rate - CC/SEC/ATM Effe
- Page 69 and 70: Underwriters’ Laboratories Approv
- Page 71 and 72: Parker Seal Elastic Drive Belt Comp
- Page 73 and 74: Parker O-Ring Handbook Gas Permeabi
- Page 75 and 76: Parker O-Ring Handbook Gas Permeabi
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- Page 81 and 82: Section IV - Static O-Ring Sealing
- Page 83 and 84: The 4-3 and 4-7 design charts are o
- Page 85 and 86: (e) 0° to 5° (Typ.) 63 Break Corn
- Page 87 and 88: 215 1.301 1.305 1.079 1.060 1.063 1
- Page 89 and 90: Guide for Design Table 4-2 If Desir
- Page 91 and 92: Parker O-Ring Handbook Gland Dimens
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- Page 103 and 104: F .031 .016 RAD K Parker O-Ring Han
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- Page 107 and 108: Section V - Dynamic O-Ring Sealing
- Page 109 and 110: When a cylinder rod extends out int
- Page 111 and 112: It can be clearly seen from Figure
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- Page 125 and 126: for this service. See Section II, B
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- Page 145 and 146: 5.31.4 O-Ring Glands for Rotary Sea
- Page 147 and 148: Parker O-Ring Handbook Rotary O-Rin
Static O-<strong>Ring</strong> Sealing<br />
4-18<br />
*<br />
0° to 5°<br />
(Typ.)<br />
Surface finish X:<br />
32 for liquids<br />
16 for vacuum<br />
and gases<br />
63<br />
X<br />
R<br />
X<br />
G<br />
For Internal Pressure<br />
(outward pressure direction)<br />
dimension the groove by its<br />
outside diameter (H O)<br />
and width:<br />
(H O)<br />
= Mean O.D. of O-ring<br />
(see Table 4-1)<br />
Tolerance = Minus 1% of Mean<br />
O.D., but not more than<br />
-.060<br />
For External Pressure<br />
(inward pressure direction)<br />
dimension the groove by its<br />
inside diameter (H) i and width:<br />
(H) i = Mean I.D. of O-ring<br />
(see Table 4-1)<br />
Tolerance = Plus 1% of Mean<br />
I.D., but not more than<br />
+.060<br />
63<br />
Break Cor ners<br />
Approx. .005 RAD.<br />
L<br />
Groove<br />
Depth<br />
(= Gland Depth)<br />
<strong>Parker</strong> O-<strong>Ring</strong> <strong>Handbook</strong><br />
Face Seal Glands<br />
Gland Detail<br />
Finishes are RMS values (Refer to Design Chart 4-3 below)<br />
W<br />
L<br />
W W<br />
I.D.<br />
Section W-W<br />
.003 Max.<br />
O-<strong>Ring</strong> Face Seal Glands These dimensions are intended primarily for face type O-ring seals and low temperature applications.<br />
O-<strong>Ring</strong><br />
Size<br />
W<br />
L<br />
G<br />
Groove Width R<br />
<strong>Parker</strong><br />
Cross Section<br />
Gland<br />
Squeeze<br />
Vacuum Groove<br />
No. 2 Nominal Actual Depth Actual % Liquids and Gases Radius<br />
004<br />
through<br />
050<br />
1/16<br />
.070 ±.003<br />
(1.78 mm)<br />
.050<br />
to<br />
.054<br />
.013<br />
to<br />
.023<br />
19<br />
to<br />
32<br />
.101<br />
to<br />
.107<br />
.084<br />
to<br />
.089<br />
.005<br />
to<br />
.015<br />
102<br />
through<br />
178<br />
3/32<br />
.103 ±.003<br />
(2.62 mm)<br />
.074<br />
to<br />
.080<br />
.020<br />
to<br />
.032<br />
20<br />
to<br />
30<br />
.136<br />
to<br />
.142<br />
.120<br />
to<br />
.125<br />
.005<br />
to<br />
.015<br />
201<br />
through<br />
284<br />
1/8<br />
.139 ±.004<br />
(3.53 mm<br />
.101<br />
to<br />
.107<br />
.028<br />
to<br />
.042<br />
20<br />
to<br />
30<br />
.177<br />
to<br />
.187<br />
.158<br />
to<br />
.164<br />
.010<br />
to<br />
.025<br />
309<br />
through<br />
395<br />
3/16<br />
.210 ±.005<br />
(5.33 mm)<br />
.152<br />
to<br />
.162<br />
.043<br />
to<br />
.063<br />
21<br />
to<br />
30<br />
.270<br />
to<br />
.290<br />
.239<br />
to<br />
.244<br />
.020<br />
to<br />
.035<br />
425<br />
through<br />
475<br />
1/4<br />
.275 ±.006<br />
(6.99 mm)<br />
.201<br />
to<br />
.211<br />
.058<br />
to<br />
.080<br />
21<br />
to<br />
29<br />
.342<br />
to<br />
.362<br />
.309<br />
to<br />
.314<br />
.020<br />
to<br />
.035<br />
Special 3/8<br />
.375 ±.007<br />
(9.52 mm)<br />
.276<br />
to<br />
.286<br />
.082<br />
to<br />
.106<br />
22<br />
to<br />
28<br />
.475<br />
to<br />
.485<br />
.419<br />
to<br />
.424<br />
.030<br />
to<br />
.045<br />
Special 1/2<br />
.500 ±.008<br />
(12.7 mm)<br />
.370<br />
to<br />
.380<br />
.112<br />
to<br />
.138<br />
22<br />
to<br />
27<br />
.638<br />
to<br />
.645<br />
.560<br />
to<br />
.565<br />
.030<br />
to<br />
.045<br />
Design Chart 4-3: Design Chart for O-<strong>Ring</strong> Face Seal Glands<br />
.005<br />
Max.<br />
<strong>Parker</strong> Hannifi n Corporation • O-<strong>Ring</strong> Division<br />
2360 Palumbo Drive, Lexington, KY 40509<br />
Phone: (859) 269-2351 Fax: (859) 335-5128<br />
www.parkerorings.com
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