tailieunhanh - MECHANICAL SEAL CATALOG

The working pressure for governor systems vary, but generally the pressure required to apply the necessary squeeze is half of the working pressure. The servomotor stops usually must be adjusted to absorb part of the excess force of the full working pressure. Also the servomotor stops must be adjusted so that each servomotor applies the same amount of squeeze at the end of the stroke to prevent distortion of the operating ring and headcover. In extreme cases, unequal servomotor squeeze can distort the turbine bearing housing, causing a bearing wipe or causing the turbine runner to contact. | MECHANICAL SEAL CATALOG ệ CHESTERTON Global Solutions Local Service. TABLE OF CONTENTS SECTION I Product Overviews Cartridge Seals 180 Heavy Duty Single 280 Heavy Duty Dual 155 Standard Single 255 Standard Dual 150 General Purpose Single 250 General Purpose Dual Cassette Seals S10 High Performance Single S20 High Performance Dual Metal Bellows Seals 186 Bellows Cartridge Single 286 Bellows Cartridge Dual 186HT Bellows Cartridge Single 286HT Bellows Cartridge Dual 886 Rotary Bellows Single Seal .20 886HT Rotary Bellows Single Split Seals 442 Split Mechanical 442M Split Mixer 442PR Split Pumping Ring Gas Lubricated Seals 4400 Gas Seal .25 4410 Slow Speed Gas Component Seals 891 Rotary Inside Single 491 DIN Rotary Inside Single 440 Non-Metallic External Single Stationary Seal Mixer Seals 442M Split Mixer 280M Heavy Duty Mixer Dual 4410 Slow Speed Gas Slurry Seals 170 Slurry Cartridge Single 156 Slurry Single Specialty Seals High Viscosity Cartridge DirectFit Single and Dual Seals . 37 - 38 442PR Split Pumping Ring Seal . 39 225 Tandem Cartridge Dual General Bearing Seal . 41 Support Systems SpiralTrac Environmental Flow Guardian Flow High Capacity Support Closed Loop Tank System 45 Intelli-Flow 46 SECTION II Mechanical Seal Installation Data 180 Heavy Duty Single Seal .52 - 55 280 Heavy Duty Dual - 57 280M Heavy Duty Mixer Dual - 61 155 Standard Single Cartridge - 65 255 Standard Dual Cartridge Seal . 66 - 69 150 Single Cartridge Seal .70 - 71 250 Dual Cartridge Seal 72 - 74 S10 Single Cassette Seal 75 - 78 S20 Dual Cassette Seal . 79 - 82 186 Bellows Cartridge Single 286 Bellows Cartridge Dual Seal .84 186HT Bellows Cartridge Single - 86 886 Rotary Bellows Single .