There's an old premix foam tank with a deteriorated fitting.
The fitting was dismantled however i need to know the description and function of this fitting ( Kindly refer to the attached photo ) as the manufacturer of this tank isn't available to be contacted.
There's a wafer check valve # 900 which is installed with four semi-attached stud bolts (Locations # 1,2,15,16).
The valve is installed on a high pressure gas piping system with design pressure 110 bar & operating temp. 54 C
Even though the outer diameter of the four holes (53.5mm) is larger...
