Gasket material of choice is not an easy task. Premises appear variable in the flange connection seems to be endless. All these uncertainties will affect the the gasket sealing effect. These parameters in the past, "TAMP" seems to have been enough, but in today the processing quality flange bolt wire teeth embedded, flange rotation amount, the amount of bolt tensioning media fillers and surface treatment of the flange (there many other factors) are affecting the sealing effect of the gasket. Weakened gasket pressure performance with increased material thickness, thinner material, the greater the bearing pressure. In addition, proper bolt load order to ensure balanced load pressure. When the temperature, pressure and PT values ??are in the appropriate conditions, the gasket will be able to play a very good sealing effect.
Any type of gasket, in the harsh environment of use, to ensure a long time an effective seal, must have the following eight characteristics:
Gasket airtightness
Medium for the sealing system, the gasket does not occur within a certain time of the recommended temperature and pressure leakage.
The compressibility of the gasket
The contact surface of the gasket and flange connecting bolts fastening should be in good agreement, in order to ensure the seal.
Creep resistance of the gasket
Gasket under the influence of the pressure load and the use of temperature, creep resistance should preferably, otherwise back to cause the bolt torque loss, resulting in surface stress of the gasket is reduced, so that the hard-gas system leaks.
Other News:
A selection important factors affect the gasket
By manganese and nitrogen instead of chrome-nickel stainless steel, nickel-princ
Double row deep groove ball bearing wear causes and prevention technology
Imports of iron ore and steel billet fell domestic iron ore lower
How to effectively protect the nsk bearings to achieve the longest life
The billets fall further rebar steel price adjustment or vulnerable welcome
Relocation project of a number of cities in steel prices start in the third quar
Bad accounting led hot rolled coil market pressure increases
