Inline sight glass with double glazing type 531D
The ACI double-glazed inline sight glass Type 531 D is built on the same proven design as Type 530 D, making it significantly lighter than comparable valves with cast housings. Just like with Type 530 D, we use only high-quality materials in a closely controlled process from quotation to delivery to ensure that the fitting meets your requirements.
The double-glazed windows with opposing views of Type 531 D offer increased safety compared to single glazing, allowing for the observation and illumination of the flowing medium. In the standard configuration, they consist of proven borosilicate glass in accordance with the DIN 7080 standard. If these highly resistant glasses do not meet your requirements, we manufacture special glasses made of borosilicate glass in accordance with DIN 7080, quartz glass, or corundum or sapphire glass, specially designed to meet your requirements. If an even higher level of safety is required, we also have sight glasses with safety double glazing, such as Type 586 in our product range.
Sealing is provided by quality gaskets from renowned suppliers, which we select according to the requirements of your individual application. Apart from the widely used fibre gaskets such as KlingerSIL C4400, we also use graphite gasket sheets with and without metal inserts, pure or expanded PTFE, or mica composite gaskets under extreme operating conditions.
