Parker O-Ring Handbook.pdf

More documents

Recommendations

Info

Appendix 10-14 Torr: The unit of pressure used in vacuum measurement. It is equal to 1/760 of a standard atmosphere, and for all practical purposes is equivalent to one millimeter of mercury (mm Hg). Example: 25 mm Hg = 25 torr 1 x 10-3 mm Hg = 10-3 torr (millitorr) 1 X 10-6 mm Hg = 10-6 torr (microtorr) Torsional Strength: Ability of rubber to withstand twisting. TR-10: (10% Temperature retraction) A measure of the low temperature capability of an elastomer, being the temperature at which a stretched and frozen specimen has retracted by 10% of the stretched amount. (ASTM method D1329) Trapped Air: Air which is trapped in a product or a mold during cure. Usually causes a loose ply or cover, or a sur face mark, depression or void. Trim: The process involving removal of mold fl ash. Trim Cut: Damage to mold skin or fi nish by too close trimming. — U — Under-Cure: Degree of cure less than optimum. May be evidenced by tackiness, loginess, or inferior physical properties. Ultimate Elongation: See Elongation. — V — Vacuum: The term denoting a given space that is occu pied by a gas at less than atmospheric pressure. For degrees of vacuum; see vacuum level. Vacuum Level: The term used to denote the degree of vacuum evidenced by its pressure in torr (or mm Hg). (a) Rough vacuum — 760 torr to 1 torr (b) Medium vacuum — 1 torr to 10-3 torr (c) High vacuum — 10-3 torr to 10-6 torr (d) Very high (hard) vacuum — 10-6 torr to 10-9 torr (e) Ultra high (ultra hard) vacuum — Below 10-9 torr Parker O-Ring Handbook Vapor: The gaseous state of a fl uid that normally exists as a liquid under atmospheric conditions, i.e. a gas whose temperature is below its critical temperature. Vapor Pressure: The maximum pressure exerted by a liquid (or solid) heated to a given temperature in a closed container. Virtual Leak: An “apparent” leak in a vacuum system that is traceable, in fact, to some internal (and often accidental) release of occluded and/or sorbed gases. Example: An undetected blister in a fused joint may eventually break down in a vacuum and suddenly (or slowly) release its entrapped air, thereby indicating a “leak.” Viscosity: The property of fl uids and plastic solids by which they resist an instantaneous change of shape, i.e., resistance to fl ow. Void: The absence of material or an area devoid of mate rials where not intended. Volatilization: The transition of either a liquid or a solid directly into the vapor state. In the case of a liquid, this transition is called evaporation, whereas in the case of a solid, it is termed sublimation. Volume Change: A change in the volume of a seal as a result of immersion in a fl uid expressed as a percentage of the original volume. Volume Swell: Increase in physical size caused by the swelling action of a liquid. Vulcanization: A thermo-setting reaction involving the use of heat and pressure, resulting in greatly increased strength and elasticity of rubber-like materials. Vulcanizing Agent: A material which produces vulcani zation of an elastomer. — W — Width: Seal cross section or thickness. Wiper Ring: A ring employed to remove excess fl uid, mud, etc., from a reciprocating member before it reaches the packings. Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com
10.4 Abbreviations ACM Polyacrylate Rubber AF Air Force AFML Air Force Material Laboratory AMS Aerospace Material Specifi cation AN (1) Army-Navy; (2) Air Force-Navy ANA Air Force-Navy Aeronautical Bulletin AND Air Force-Navy Design AQL Acceptable Quality Level ARP Aerospace Recommended Practice AS Aerospace Standard ASTM American Society for Testing and Materials atm Atmosphere (atmospheric) AU Polyurethane Rubber BR Butadiene Rubber C or °C Degrees Centigrade cc Cubic centimeter C.G.S. Centimeter-Gram-Second; system of units for length, mass, and time CO Epichlorohydrin Rubber cpm Cycles per minute CR Chloroprene (Neoprene) cs Cross Section CSM Hypalon Rubber Dia Diameter ECO Epichlorohydrin Rubber EP, EPM Ethylene-Propylene Rubber EPDM Ethylene-Propylene Rubber EU Polyurethane Rubber F or °F Degrees Fahrenheit FED Federal Specifi cation FKM (also FPM) Fluorocarbon Rubber F.P.S. Foot-Pound-Second; system of units for length, weight and time FVMQ Fluorosilicone Rubber HNBR Hydrogenated Nitrile Rubber GRS “Government Rubber Styrene”; now SBR ID Inside Diameter IIR Butyl Rubber Parker O-Ring Handbook in. Inch IR Isoprene Rubber JAN Joint Army-Navy JIC Joint Industry Conference on Hydraulic Standards for Industrial Equipment K Degrees Kelvin (Absolute) — (°C +273) Max Maximum MIL Military Specifi cation Min Minimum MS Military Standard MVQ Silicone Rubber NAS National Aerospace Standard (also National Aircraft Standards [older meaning]) NASA National Aeronautics and Space Administration NBR Nitrile or Buna-N Rubber No Number NR Natural Rubber OD Outside Diameter psi Pounds per square inch PVMQ Phenyl Silicone Rubber QPL Military Qualifi ed Products List R or °R Degrees Rankine (Absolute) — (°F +460) Rad Radius RMA Rubber Manufacturers Association RMS Root-Mean-Square; average value of surface roughness measured in microinches rpm Revolutions per minute SAE Society of Automotive Engineers, Inc. SBR Styrene Butadiene Rubber sfm Surface Feet per minute Spec Specifi cation T Polysulfi de Rubber Temp. Temperature TFE/P AFLAS USAF United States Air Force VMQ Silicone Rubber W Width (seal cross section) WPAFB Wright-Patterson Air Force Base Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com Appendix 10-15
Page 1 and 2:
aerospace climate control electrome
Page 3 and 4:
50 th 50 th 50 th Anniversary Editi
Page 5 and 6:
Section I - Introduction 1.0 How to
Page 7 and 8:
1.4 Operation All robust seals are
Page 9 and 10:
1.7.1 Static Seals In a truly stati
Page 11 and 12:
1.11 Comparison of Common Seal Type
Page 13 and 14:
Section II - Basic O-Ring Elastomer
Page 15 and 16:
2.1.2 Rubber Rubber-like materials
Page 17 and 18:
2.2.6 Chloroprene Rubber (CR) Chlor
Page 19 and 20:
2.3 Compound Selection and Numberin
Page 21 and 22:
O-ring seal, whether static or dyna
Page 23 and 24:
Percent Compression 40% 30% 20% 10%
Page 25 and 26:
Percent Compression 40% 30% 20% 10%
Page 27 and 28:
Compression Set (% ) 100 Figure 2-1
Page 29 and 30:
2.4.12 Thermal Effects All rubber i
Page 31 and 32:
coeffi cient of expansion for that
Page 33 and 34:
2.6 Aging Deterioration with time o
Page 35 and 36:
A well-known rapid method for mater
Page 37 and 38:
2.13.2 Temperature Temperature rang
Page 39 and 40:
100 80 60 40 20 0 °C -50 °F -58 -
Page 41 and 42:
misapplication might be greatly red
Page 43 and 44:
c. Elongation Change Experience wil
Page 45 and 46:
is possible to receive a part with
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:
Page 77 and 78:
Page 79 and 80:
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
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Dovetail Grooves It is often necess
Page 101 and 102:
Parker O-Ring Handbook This type of
Page 103 and 104:
F .031 .016 RAD K Parker O-Ring Han
Page 105 and 106:
Gland Detail 0° to 5° Break Corne
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
Page 113 and 114:
5.11 Friction Friction, either brea
Page 115 and 116:
5-9 Dynamic O-Ring Sealing Parker H
Page 117 and 118:
For the same conditions, friction a
Page 119 and 120:
5.15 Spiral Failure A unique type o
Page 121 and 122:
5.16.1 Small Amount of Leakage 1. E
Page 123 and 124:
Recommended dimensions for fl oatin
Page 125 and 126:
for this service. See Section II, B
Page 127 and 128:
5.30.2 Calculation of Drive Belt Cr
Page 129 and 130:
Parker O-Ring Handbook Gland Design
Page 131 and 132:
124 125 126 127 128 129 130 131 132
Page 133 and 134:
240 241 242 243 244 245 246 247 325
Page 135 and 136:
448 449 450 451 452 453 454 455 456
Page 137 and 138:
X Gland Detail 0° to 5° Break Cor
Page 139 and 140:
Page 141 and 142:
5.31.3 O-Ring Glands for Pneumatic
Page 143 and 144:
Parker O-Ring Handbook Design Table
Page 145 and 146:
5.31.4 O-Ring Glands for Rotary Sea
Page 147 and 148:
Parker O-Ring Handbook Rotary O-Rin
Page 149 and 150:
Parker O-Ring Handbook Rotary O-Rin
Page 151 and 152:
Section VI - Back-Up Rings 6.1 Intr
Page 153 and 154:
6.4.2 Metal Non-Extrusion Rings In
Page 155 and 156:
Parker Parbak 8-Series Dimensions (
Page 157 and 158:
Parker Parbak 8-Series Dimensions (
Page 159 and 160:
Back-Up Rings Cross Reference (Cont
Page 161 and 162:
Parker O-Ring Handbook Section VII
Page 163 and 164:
COMPOUND COMPATIBILITY RATING 1 - S
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214: COMPOUND COMPATIBILITY RATING 1 - S
Page 215 and 216: COMPOUND COMPATIBILITY RATING 1 - S
Page 217 and 218: Section VIII - Specifi cations 8.1
Page 219 and 220: Military Fluid Specifi cation Descr
Page 221 and 222: AMS (1) and NAS (2) Rubber Specifi
Page 223 and 224: Parker O-Ring Handbook Compound Sel
Page 225 and 226: Section IX Sizes Parker Series 2-XX
Page 227 and 228: Table 9-1: Parker Series 2-XXX O-Ri
Page 229 and 230: Parker O-Ring Handbook Parker Serie
Page 237 and 238: Parker Series 5-XXX O-Ring Sizes (C
Page 239 and 240: Parker Series 5-XXX O-Ring Sizes (C
Page 241 and 242: Series 5-XXX Locator Table Size I.D
Page 243 and 244: Parker O-Ring Handbook Inside Diame
Page 245 and 246: JIS B2401 Sizes JIS Thickness Inner
Page 247 and 248: Parker O-Ring Handbook Unusual Size
Page 249 and 250: Parker O-Ring Handbook Unusual Size
Page 251 and 252: Section X - Appendix 10.1 O-Ring Fa
Page 253 and 254: 10.1.1.2 Extrusion and Nibbling Ext
Page 255 and 256: 10.1.1.6 Installation Damage Many O
Page 257 and 258: Parker Seal also has the capability
Page 259 and 260: 10.3 Glossary of Seal and Rubber Te
Page 261 and 262: Flash: Excess rubber left around ru
Page 263: (b) REP (Roentgen equivalent-physic
Page 267 and 268: Compound Shrinkage Class Compound N
Page 269 and 270: Table 10-8: Dimensions From Standar
Page 277 and 278: Parker O-Ring Handbook Dimensions F
Page 283 and 284: Appendix 10-32 Parker O-Ring Handbo
Page 285 and 286: Index — A — Abbreviations. . .
Page 287 and 288: International O-Ring Standards and
Page 289 and 290: Offer of Sale 1. Terms and Conditio
Page 291 and 292: Parker’s Total inPHorm Take the g
show all

Parker O-Ring Handbook.pdf

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?