The dimensions of the DeltaV-Seal test specimens for the different tests were 4" Class 300. The dimensions of the test plates in contact with the gasket are OD = 147mm and ID = 113mm. The thickness of the gasket is 3.8 mm before compression.
The calculation of the gasket stress referred to a contact area of 708.4mm ^2. of the gasket, assuming that the gasket is compressed close to the metal carrier of 2.8mm thickness. A detailed calculation of the contact area is presented in table 1 below.
The mean gasket circumference, which is necessary for calculating the leak rate, was defined to be 409.0 mm. Calculating is presented in table 2 below.
Picture of the test specimen DeltaV-Seal