Product Family Stainless Steel Quality Class 4
The Ganter product range includes a large number of standard parts made of high-quality, non-rusting stainless steels. Thanks to their outstanding material properties, these are used in a wide array of industries. Their corrosion and rust resistance in particular contributes to the value stability and longevity of machines and equipment.
For easier differentiation, the stainless steels used by Ganter are divided into stainless steel quality classes:
Stainless Steel Quality Class 1
Stainless Steel Quality Class 2
Stainless Steel Quality Class 4Show detailed information on the stainless steel quality classes
Show all stainless steel products
Product description
Sight glasses GN 7440 are equipped with a sight glass that is metal-fused to the body by a thermal process. As a result the liquid glass adapts precisely to the contour of the body. During cooling, the different coefficients of linear expansion of the two joining partners generate strong mechanical initial stress between the glass and metal.
This initial stress makes the sight glasses 100% leakproof and particularly resistant to dynamic pressures and high temperatures when used with liquid and gaseous media. Moreover, the site glass offers a high level of safety, as potential damage is indicated in advance by small cracks without breakage of the glass. The seal is embedded in a radial recess, and thus cannot be lost or squeezed out during tightening.
The recommended operating pressures are non-binding values and rule out any liability. The user must determine from case to case whether a product is suitable for the intended use. Environmental factors can influence the specified values.
Specification
Body
Stainless steel AISI 316L
Sight glass
Float-glass
- Metal-fused
- Shrink-fit
Contrast screen
Grooves melted into sight glass
Seal
- Fluorine rubber (FKM) for identification no. 2
Operating temperature up to 180 °C
(without pressure load) - Copper for identification no. 3
Operating temperature up to 300 °C
(without pressure load)
RoHS
Accessory
GN 7430 Mounting Nuts
GN 7490 Welding Sockets
On request
- Seal made of
acrylonitrile butadiene rubber (NBR) - Seal made of
ethylene propylene diene rubber (EPDM)
