Thank you for your replies.
I've attached additional photo and free hand sketch for the system description to help in identifying the item description.
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.
Replying to Gator:
The manufacture is CONTROLFLUID SRL
It's an old modeled valve & i've tried contacting them to get the related data sheet with no reply.
Replying to LittleInch:
A drawing isn't available.
My concern that overload may exist on the rest of the bolts as these bolts are 1,2,15,16 (...
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...