column type level indicator / water / direct-reading / glycol solution-resistant

Assembly ends
Glass-fibre reinforced polyamide based (PA) technopolymer, black colour.
Support
Aluminium in natural colour.
Level column window
Transparent tube in PYREX®* glass, also suitable for use with glycol-based solutions.
Maximum fluid level visibility even from side positions
Transparent front protection (against accidental shocks)
Polycarbonate (PC), extractable for cleaning operations
Screws, nuts and washers
HCK-GL: zinc-plated steel screws with hexagon socket, nuts and washers.
HCK-GL-SST: AISI 303 stainless steel screws with hexagon socket, AISI 304 stainless steel nuts and washers.
Flat gaskets
HCK-GL: NBR rubber O-Ring
HCK-GL-SST: FKM type VITON®** synthetic rubber.
Graduated contrast screen
Self-adhesive plastic material, resistant to oils, greases.
Fitted to the aluminium support.
Maximum continuous working temperature
HCK-GL: 100°C (with oil, water, glycol-based solutions).
HCK-GL-SST: 130°C (with oil, water, glycol-based solutions). In laboratory tests these indicators showed an excellent resistance to temperatures up to 150/160°C for many hours with pressures of 5/6 bar.
* Registered trademark by Corning Inc.
** Registered trademark by DuPont Elastomers.