E+G GN 7440 Oil sight glass in stainless steel equipped with a sight glass that is fused to the body by a thermal process. The liquid glass adapts precisely to the contour of the body. During cooling, the different coefficients of linear expansion of the two joined partners will generate strong initial mechanical stress between glass and metal. This initial stress makes the spectacle lenses 100% tight and particularly resistant to dynamic pressures and high temperatures when used with liquid and gaseous forms. In addition, the item’s glass offers a high level of safety, as potential damage is indicated in advance by small cracks without breaking the glass. The seal is embedded in a radial recess, and thus cannot be dropped or pushed out under tension. The recommended operating pressures are non-binding values and exclude any liability. The user must decide on a case-by-case basis whether a product is suitable for the intended use. Environmental factors may affect the values indicated.
Material:
– AISI 316L Stainless steel
Types:
– Type A: with reflector grooves
Identification no.
– No. 2: Sealing Rubber FPM (Viton®) Temperature resistant up to 180 °C (without pressure load)
– No. 3: Sealing copper Temperature resistant up to 300 °C (without pressure load)
