Patent ID: 8925579
Filing Date: 2015-01-06
Classification: B65D,F16K,Y10T

Abstract:
1. A pressure relief valve, the valve comprising: a valve body, the valve body having a valve chamber, the valve chamber having a valve seat on a structure raised above a valve chamber base surface and at least one gas port through the valve seat, the gas port adapted for fluid communication of gases through the valve chamber, from one side of the valve to the other side of the valve, the valve seat further comprising a substantially hemispherical dome with a truncated generally flat surface; whereby control of the fluid communication is effected by a resilient, non-perforated diaphragm having a seat engaging side and a seat engaging side first surface area, the diaphragm adapted to float within the valve chamber and to inter-engage the valve seat to selectably block fluid flow through the valve seat gas port; the valve seat further comprising a generally flat diaphragm-engaging surface having a second surface area, the second surface area being less than the first surface area; wherein the surface area of the diaphragm engaging surface of the valve seat is 16% to 80% of the surface area of the engaging side of the diaphragm.