393 Sight Flange ANSI Slip On Flange version

Sight Flange flange
ANSI Slip On Flange version
For welding

Slip On Sight Glass Flanges are suitable for T-junctions or pipe sockets. Possible uses include any case where visual inspection of flow or filling processes is desired. Since they are equally suited for liquids and gases, they are useful for special construction in any industry.

Show all product specifications

Flange: S235JRG2, 1.4571
Glass: Borosilicate glass DIN 7080 (max. 280°C), Soda Lime Glass DIN 8902 (max. 150°C), Quartz Glass (max. 500°C, Special construction)
Seal: C4400, Graphite, PTFE, NBR, Viton

Other materials on request

Sight Glass must be disassembled for welding!

ACI Type 393
2‘‘, #150
Flange 1.4571
Borosilicate glass

For corrosive media or steam we recommend mica disks!


Nominal diameter DN25, DN40, DN50, DN80, DN100, DN125, DN150, DN200, DN300
Pressure rating PN16, PN40
Sight glass body 1.4571, S235JRG2
Process Connection Socket Weld
Shape Round Sight Glasses
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