ATEX-Sight Glasses GN 541.6 (HFTX-EX)

ELESA Original design
code: HFTX-EX

Product Family ATEX

ATEX standard parts have been developed for explosion hazard conditions in hydraulics or gear construction. Every product includes a documentation showing the underlying European explosion protection directive (ATEX).

especially for explosion hazard zones

Show all ATEX products

Standard sheet GN 541.6 Print this page Operating instruction GN 541.6 Plastic Characteristics

Product description

ATEX-Sight glasses GN 541.6 are suitable for use in an explosion risk environment. They comply with the guidelines 2014/34/EU.

A detailed operating instruction is available and included with every sight glass. This allows them to be relatively thin while offering a large window glass.

A detailed operating instruction is available and included with every sight glass.

Assembly instruction:
For mounting on walls of less than 4 mm thickness please use mounting nuts GN 7430.

Specification

Plastic
Crystal clear Polyamide (PA-T)

High mechanical strength
Temperature resistant up to 80 °C
Solvent resistant,
but not suitable for alcohol

Seal
Rubber NBR (Perbunan^®)

Reflector
Aluminum
Natural color, anodized

RoHS

d₁ Window glass	d₂		d₃	l₁	l₂	s	recommended tightening torque in Nm

11	M 16 x 1,5	-	22	8	7	19	2 ... 3
14	M 20 x 1,5	-	26	9,5	8	22	8 ... 10
18	M 25 x 1,5	-	31,5	8	9	27	8 ... 10
18	M 26 x 1,5	-	31,5	13	9	27	8 ... 10
20	M 27 x 1,5	-	31,5	9	9	27	8 ... 10
22	M 30 x 1,5	-	35	9	10	30	8 ... 10
25	M 35 x 1,5	-	40	11	10	34	8 ... 10
30	M 40 x 1,5	-	47	11,5	13	40,5	8 ... 10
-	-	-	-	-	-	-	-
11	-	G 3/8	22	7,5	7	19	3 ... 5
14	-	G 1/2	26	10,5	8	22	4 ... 6
20	-	G 3/4	31,5	10,5	9	27	6 ... 8
25	-	G 1	40	11	10	34	8 ... 10
30	-	G 1 1/4	47	11,5	13	40,5	8 ... 10

d₁
Window glass

d₂

d₃

l₁

l₂

recommended
tightening torque in Nm

M 16 x 1,5

2 ... 3

M 20 x 1,5

9,5

8 ... 10

M 25 x 1,5

31,5

8 ... 10

M 26 x 1,5

31,5

8 ... 10

M 27 x 1,5

31,5

8 ... 10

M 30 x 1,5

8 ... 10

M 35 x 1,5

8 ... 10

M 40 x 1,5

11,5

40,5

8 ... 10

G 3/8

7,5

3 ... 5

G 1/2

10,5

4 ... 6

G 3/4

31,5

10,5

6 ... 8

G 1

8 ... 10

G 1 1/4

11,5

40,5

8 ... 10

GN 541.6 ATEX-Sight Glasses Crystal Clear Plastic

Product Family ATEX

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