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GN7440 Sight Glass, Stainless Steel, AISI 316 L, Metal Fused
CloseNextPreviousGN7440 Sight Glasses, Stainless Steel, Metal Fused
Id. No. 2: FPM Seal
CloseNextPreviousGN7440 Sight Glasses, Stainless Steel, Metal Fused
Id. No. 3: Copper Seal
Choose your Part
Please select desired options to reveal part number, price and availability
Options
Type A - with reflector grooves
Identification number 2 - Seal, rubber FPM (Viton)
Identification number 3 - Seal, Copper
Product Description
GN7440 Sight Glass, Stainless Steel, AISI 316 L, Metal Fused
Stainless steel 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 particulary 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. Max. operating pressure in table (safety factor 5) is at -20 °C to 120 °C and shown in bar.
Specification
Body - Stainless steel AISI 316 L
Contrast screen - Grooves melted into sight glass
Sight glass - float-glass, metal-fused, shrink-fit.
Seals:
Rubber FPM (Viton©) - Identification no. 2, Temperature resistant up to 180 °C (without pressure load)
Copper - Identification no. 3, Temperature resistant up to 300 °C (without pressure load)
On Request
NBR or EPDM seal
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Technical Data
