Metric Size,
Fluid Level Indicators
with High Chemical Resistance

EN 654.1
Elesa Model HCK-GL

RoHS Compliant
 

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Specification
Information

Indicator tube: Borosilicate glass (Pyrex®)
Cover: Crystal-clear polycarbonate
U-rail: Aluminum, anodized, natural color
End pieces: Technopolymer plastic (Polyamide PA), matte black
Mounting screws: Stainless steel
O-ring: FKM rubber (Viton®)

Shipping

Due to the U-rail and cover, Elesa® original design EN 654.1 fluid level indicators are extremely stable and therefore suitable for long lengths. The fluid level can also be viewed from the side.
These fluid level indicators have a high chemical resistance and are also suitable for media containing or based on glycol.
Temperature resistant to 212°F (100°C).
For special requirements of chemical, pressure,and temperature resistance, please contact us.
Other l1 lengths, temperature display, and electrical temperature monitoring available upon request.

Mounting Instructions
  Installation of EN 654.1 oil level indicators is very simple and economical. You need to drill two Ø 10.5 or Ø 12.5 mm (depending upon "d" thread) holes in the container wall, l1 distance apart.
Oil level indicator can also be installed directly, i.e. without nuts, if the container wall has a mounting thread.
All individual parts necessary for the assembly are provided, including hex nuts, O-rings and serrated lock washers.
For a perfect seal using the O-rings, the screws should not be too strongly tightened (max. 12 Nm). Recommended roughness of the sealing surface is RA = 3 μm.
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Dimensions in:

millimeters
(inches)

Part Number
l1
b
d
Thread
l2
l3
l4
l5
l6
l7
s~
Max.
Wall Thickness
76
(3.00)
33
(1.30)
M10 x 1.5
20
(.79)
42
(1.65)
113
(4.45)
17
(.67)
18.5
(.73)
33
(1.30)
12
(.47)
127
(5.00)
33
(1.30)
M12 x 1.75
20
(.79)
71
(2.80)
164
(6.46)
28
(1.10)
18.5
(.73)
33
(1.30)
10
(.39)
176
(6.93)
33
(1.30)
M12 x 1.75
20
(.79)
120
(4.73)
213
(8.39)
28
(1.10)
18.5
(.73)
33
(1.30)
10
(.39)
254
(10.00)
33
(1.30)
M12 x 1.75
20
(.79)
198
(7.80)
291
(11.46)
28
(1.10)
18.5
(.73)
33
(1.30)
10
(.39)
381
(15.00)
33
(1.30)
M12 x 1.75
20
(.79)
325
(12.80)
418
(16.46)
28
(1.10)
18.5
(.73)
33
(1.30)
10
(.39)
508
(20.00)
33
(1.30)
M12 x 1.75
20
(.79)
452
(17.80)
545
(21.46)
28
(1.10)
18.5
(.73)
33
(1.30)
10
(.39)