Aluminum / Crystal Clear Plastic

GN 744 Oil Sight Glasses, Resistant up to 110 °C

Oil Sight Glasses Resistant up to 110 C GN 744 thumbnail

Oil Sight Glasses Resistant up to 110 C GN 744 sketch

Type

A	With prismatic effect (only d°°1°° = 14/18/24)
B	Without reflector (all sizes)
C	With red marking ring (only d°°1°° = 11/14/18/24)

Show filter

d₁	d₂			d₃	l₁	l₂	s

7	G 1/4	M 12 x 1,5	-	20	7,5	6,5	18
11	G 3/8	M 16 x 1,5	-	22	8	7,5	20
14	G 1/2	M 20 x 1,5	-	26	8,5	7,5	23
18	G 3/4	M 26 x 1,5	M 27 x 1,5	32	9	8	30
24	G 1	M 33 x 1,5	-	40	11	8,5	36

Filter combination produces no result.

Specification

Body
Aluminum
Fine turned

Sight glass
Plastic

Crystal clear Polyamide (PA 6-T)
Temperature resistant up to 110 °C

Red marking ring
Pad printing

Seal
Rubber NBR (Perbunan^®)

Elastomer Characteristics

Plastic Characteristics

RoHS

Accessory

Mounting Nuts GN 7430

On request

EPDM seals

Information

Oil sight glasses GN 744 in type A use the so called prismatic effect of a cat’s eye to display the oil level unaffected by oil color or oil viscosity. The advantage of this effect is particularly obvious in the case of under or overfilling or for inspection under unfavourable light conditions.

The seal is housed in a radial groove in the aluminium body and hence cannot be lost. In addition it cannot be extruded when thigtening the sight glass.

Oil sight glasses GN 744 can also be used on pressurised tanks. Tests regarding maximum pressure are available.

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

How to order