Text from page 11 of catalogue Seals
Page 11 of catalogue Seals of Reinz-Dichtungs-GmbHOther things you should know
DEMANDS PLACED ON Sealing systems
Correct material selection and optimum design are decisive criteria for the functionality and durability of gaskets and Seals. Depending on application area and ambient conditions, different requirements are placed on the selected material and the design. ¬ ¬ ¬ ¬ ¬ ¬ ¬ Temperature resistance Media resistance Corrosion resistance Recovery behavior Setting behavior Easy installation Recyclability
Ensuring a high surface texture quality is an important basic requirement for a functioning sealing system. With critical surface texture qualities, we recommend a leakage test using volume flow measuring equipment. Gasket selection With VICTOR REINZ, selection of a suitable sealing concept is really simple. We require just a few parameters:
¬ Application area ¬ Ambient conditions ¬ Temperature range (peak temperature, continuous temperature) ¬ Conformability ¬ Internal pressure stress ¬ Dynamics The following pages show all the relevant information.
Surface texture of the surrounding components One important basic requirement for optimum sealing is the surface texture of the components to be sealed. Surface texture is determined according to DIN EN ISO 4287 and DIN EN ISO 4288 using the profile method to generate an envelope profile from which the following values are defined: ¬ ¬ ¬ ¬ Primary profile Pt Waviness profile Wt Roughness RZ Maximum roughness Rmax
Waviness profile Wt
Max. roughness Rmax
Exemplary envelope profile to describe the surface texture of a flange.
RZ = (Z1 + Z2 + Z3 + Z4 + Z5) / 5 section roughness Rz