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Column level indicators with transparent protection for glycol-based solutions (Elesa patent)

SKU: 8915 Category:
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Technical Drawing

Product Details

Standard Elements Main dimensions Mounting holes C # Weight
Code Description Code Description f d A B C L l1 l2 r d ‘-0.2 f ‘±0.2 [Nm] g
111004 HCK.76-GL-M10 111005 HCK.76-GL-SST-M10 76 M10 20 33 33 113 35.5 42 18.5 10.5 76 12 183
111014 HCK.127-GL-M12 111015 HCK.127-GL-SST-M12 127 M12 20 33 33 164 46.5 71 18.5 12.5 127 12 220
111024 HCK.176-GL-M12 111025 HCK.176-GL-SST-M12 176 M12 20 33 33 213 46.5 120 18.5 12.5 176 12 250
111034 HCK.254-GL-M12 111035 HCK.254-GL-SST-M12 254 M12 20 33 33 291 46.5 198 18.5 12.5 254 12 298
111044 HCK.381-GL-M12 111045 HCK.381-GL-SST-M12 381 M12 20 33 33 418 46.5 325 18.5 12.5 381 12 377
111054 HCK.508-GL-M12 111055 HCK.508-GL-SST-M12 508 M12 20 33 33 545 46.5 452 18.5 12.5 508 12 455
# Maximum tightening torque.

Additional information

Assembly ends

Glass-fibre reinforced polyamide based (PA) technopolymer, black colour.

Graduated contrast screen

Self-adhesive plastic material, resistant to oils, greases.<BR>Fitted to the aluminium support.

Level column window

Transparent tube in Pyrex, also suitable for use with glycol-based solutions.<BR>Maximum fluid level visibility even from side positions.

Maximum continuous working temperature

– HCK-GL: 100°C (with oil, water, glycol-based solutions). <BR>- HCK-GL-SST: 130°C (with oil, water, glycol-based solutions). <BR>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.

Packing rings

– HCK-GL: rubber O-ring.<BR>- HCK-GL-SST: FKM type VITON<SUP>®</SUP>* synthetic rubber O-Ring.

Screws, nuts and washers

– HCK-GL: screws with hexagon socket, zinc-plated steel nuts and washers.<BR>- HCK-GL-SST: AISI 303 stainless steel screws with exagonal socket , AISI 304 stainless steel nuts and washers.

Special executions on request

– Polyamide based technopolymer float (from HCK.127) red colour.<BR>- Expanded NBR float (from HCK.176) black colour with AISI 316 stainless steel spiral for special executions, viscous liquids, high temperatures.<BR>- Column level window with visibility (l2) superior to 452 mm and holes centre distance (f) for fixing up to 1.500 mm.<BR>- Electric sensor bracket pre-set at the following temperatures: 50°C, 60°C, 70°C, 80°C.<BR>- Packing rings in special material depending on the customer’s needs.<BR>- Built-in thermometer with red indication line.<BR>- External scale thermometer (Fig. 1) with internal probe for fluid temperature.<BR>- Electric level sensor (Fig. 2, from HCK.254) which can be fitted along the axis of the indicator according to the actual needs. With right (DX) or left (SX) connectors, normally closed (NC), normally open (NO).<BR>- Special screw with nickel-plated brass tap (Fig. 3) to be fitted to the lower assembly end for any maintenance operation requiring the indicator exclusion.<BR>* Registered trademark by DuPont Dow Elastomers.


Aluminium in natural colour.

Technical data

In laboratory tests carried out with mineral oil type CB68 (according to ISO 3498) water or water/glycol-based solutions (50%), at 23°C for a relatively limited time, the values of pression resistance were very high even higher than 30 bar.<BR>If you need to use the indicator with other oils or fluids and under different pressure and temperature conditions, please contact ELESA Technical Department. In any case we suggest to verify the suitability of the product under the actual working conditions.

Transparent front protection (against accidental shocks)

Polycarbonate (PC), extractable for cleaning operations.

Additional Technical Drawing Additional Technical Drawing