531 Flow Sight Glass With welding connections PN16, PN40

Flow Sight Glass PN16, PN40
With welding connections

No liquid traps!

Visual survey of flow and filling processes in piping. The sight glasses allow for a reliable observation of function and performance of single devices or complete plants. With this design, no significant amount of liquid will remain in the sight glass when installed horizontally. With standard sight glasses, liquid will remain in the sight glass body. This liquid will drain out with this design.


Body: 1.4571, 1.4404, Steel
Glass: Borosilicate glass DIN 7080, Soda lime glass DIN 8902, Quartz Glass, META®-Glass
Seal: Graphite MST or as chosen

Other materials on request

Operating conditions:
Pressure: PN16, PN40
Temperature: 150°C (DIN 8902), 280°C (DIN 7080)

ACI Type 531
DN 200
Body 1.4571          11-531-200-1-1-1-7-00
Borosilicate glass
Graphite seal
Standard construction

Observe pressure-temperature ratings acc. to DIN EN 1092-1!

For corrosive media or steam we recommend mica disks!

Old Type:
Similar to EB108-S


Nominal diameter
Pressure rating
Sight glass body
Process Connection welding ends
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