FV
The valve should not be installed below the injection point. In that position the high temperatures and pressure could negatively influence the valve components and decrease their lifetime.
Yes, on our catalogo page we indicate the size of the hole (E dimension) to be made before installing, the valve can then be removed using the appropiate ejector.
10Bars (145 psi).
We recommend working under 150°C (302°F). Above that temperature, steel starts dilatation, so the resort introduced on the Air Valve would lose efficiency. If so, the plastic material could go in and the Air Valve would be damaged.