585 Flow Sight Glass with double glass disk

Flow Sight Glass With double glass disks PN16
With double glass disks for extra safety.

Doubly safe!

Sight glasses with safety viewports of Type 585 are designed to withstand the maximum allowable pressure with only one single glass plate intact. This way, pressure containment is guaranteeed even if one of the glass plates is damaged. Between base and intermediate flange an O-Ring seal ensures tightness even if the inner glass plate has failed. Type 585 is a true safety sight glass!

Show all product specifications

Body: P235GH, P265GH, 1.4404, 1.4571
Glass: Borosilicate glass DIN 7080, Soda Lime Glass DIN 8902, Quartz glass, META®-Glass
Seal: PTFE-enclosed resilient gasket, O-Rings

Operating conditions:
Pressure: PN16
Temperature: Max. 200°C

ACI Type 585
DN 50
Body 1.4571
Borosilicate glass
PTFE enclosed resilient gasket
Standard construction

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

PTFE seals are limited to 200°C! Higher temperatures possible in some cases on request.

For steam and corrosive media, we recommend adding mica disks!


Nominal diameter DN40, DN50, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400
Pressure rating PN16
Sight glass body 1.4404, 1.4571, P235GH, P265GH
Process Connection ANSI flanges, DIN flanges
Shape Inline Sight Glasses
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