Home Accessories for Hydraulic Systems Level indicators GN 537

GN 537

Oil level sight glasses

Aluminium / Perspex / without thread

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Description

Specification

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

Information

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.

Accessory

Pin key for installation GN 537.1 (Code no. see table)

Technical information

Elastomer characteristics -

GN 537

	d₁ Window glass	d₂ Bore Ø	b min.	d₃	d₄	e ±0.1	h	l₁	l₂	Code no. pin key for installation
Code												Actions
GN 537-16-20-A	16	20	9	25	2.2	21	5	15	3.5	GN 537.1-21	8
GN 537-16-20-B	16	20	9	25	2.2	21	5	15	3.5	GN 537.1-21	8
GN 537-22-28-A	22	28	10	35	3	30	6	15	4.5	GN 537.1-30	17
GN 537-22-28-B	22	28	10	35	3	30	6	15	4.5	GN 537.1-30	17
GN 537-32-38-A	32	38	12	45	3	40	8	18	5.5	GN 537.1-40	34
GN 537-32-38-B	32	38	12	45	3	40	8	18	5.5	GN 537.1-40	30
GN 537-50-58-A	50	58	14	64	3	58.5	10	22	5.5	GN 537.1-58.5	80
GN 537-50-58-B	50	58	14	64	3	58.5	10	22	5.5	GN 537.1-58.5	80

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