Oil level 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 colour 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 level sight glasses GN 744 can also be used on pressurised tanks. Data of pressure an vacuum pressure tests is available.
For mounting on walls of less than 4 mm thickness please use a fixing nut GN 543.1.
crystal-clear Polyamide (PA 6-T)
temperature resistant up to 110 °C
Red marking ring
Rubber NBR (Perbunan)
If this article is new in our product range, it may happen that details concerning weight are as yet not listed. If you do need weight details, please contact our Sales Department! Phone+49 7723 6507 - 0
RoHS compliant: -
This article does not conform to RoHS. For RoHS conforming alternative products, please contact our Sales Department!Phone +49 7723 6507- 0
Please note our quantity discounts.
With a total value (net) per order:
from 150 Euro -> 10 % discount
from 250 Euro -> 20 % discount
from 350 Euro -> 30 % discount
All prices in accordance with our price list No. 51, valid from 1 February 2018, plus VAT only valid for Germany.