Reliable process control with manhole sight glass type 325 Proven standard solution for industrial vessels

Robust manhole sight glass for existing vessel flanges according to EN 1092-1 DN300 PN16

Industrial plants place high demands on installed components, especially when safety, long term durability and clear process visibility are required. For an existing vessel flange according to EN 1092-1 with nominal diameter DN300 and pressure rating PN16, a reliable and user friendly sight glass solution was required to ensure continuous visibility of internal processes.

With the manhole sight glass type 325, ACI Industriearmaturen GmbH offers a proven standard solution for industrial applications. Designed for use on unpressurized to low pressure vessels, this sight glass combines robust construction, easy handling and a high level of operational safety.

Design details
• Nominal diameter DN300 with flange connection according to EN 1092-1 PN16
• Base and cover flanges made of stainless steel 1.4571 in accordance with AD 2000 W2
• Borosilicate glass according to DIN 7080 with a clear viewing diameter of Ø 175 mm
• Integrated wiper with PTFE blade and T handle
• Three eye bolts for easy installation and removal
• FDA compliant PTFE gaskets and KlingerSil C4400 on the cover side
• Operating range from minus 10 °C to plus 200 °C at operating pressures up to 5 bar

The manhole sight glass type 325 ensures safe and convenient process observation across a wide range of industries. Whether in plant engineering, the chemical industry or the energy sector, its durable materials and standards compliant design provide transparency and reliability in daily operation.

ACI supports its customers from technical consultation through to implementation. Individual adaptations or special requirements can also be reliably realized based on proven product designs.