537-16-20-A GN 537 Indicateurs de niveau d'huile
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Fiche technique
Caractéristiques techniques
- Code
- GN 537-16-20-A
- d1 Window glass
- 16
- d2 Bore Ø
- 20
- b min.
- 9
- d3
- 25
- d4
- 2.2
- e ±0.1
- 21
- h
- 5
- l1
- 15
- l2
- 3.5
- Code no.
pin key
for installation - GN 537.1-21
- 8
Types
- Type A: without oil level mark
- Type B: with oil level mark
Ring nut
Aluminium
Sight glass
Perspex (PMMA)
temperature resistant up to 80 °C
Sealing ring
Rubber NBR (Perbunan)
Contrast screen
Plastic
white, with red oil level marks
This oil level glass GN 537 does not require a thread.
The oil level sight glass is inserted into the bore d2 to H11. By simply tightening the ring nut using the pin key the seal is pressed against the contact surface which, at the same time, will hold the sight glass in position. For removal reverse the procedure.
Their application is limited to non-pressurised or only slightly pressurised tanks.
- Pin key for installation GN 537.1 (Code no. see table)