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GN743.5 Oil Level Sight Glass, Stainless Steel, ESG Glass

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Type A - with reflector

Type B - without reflector

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Product Description

GN743.5 Oil Level Sight Glass, Stainless Steel, ESG Glass

Oil level sight glasses GN 743.5 offer the following features:

Highly stable, scratch proof glass. The sealing is achieved with an O-ring on the periphery and not on the face edge of the glass. Leak tightness is therefore not affected by axial pressures.

The outside diameter of these oil level sight glasses with recessed hexagon is chosen to match mounting holes for tube connections according to DIN 3852.

The seal is housed in a groove and it can therefore not be lost. In addition, this groove prevents the seal from being extruded when the sight glass is tightened. The location of this seal also allows the use of a softer Elastomer which guarantees better and easier sealing.

Oil level sight glasses GN743.5 can be used on pressurised oil tanks. Tests regarding maximum pressure are available on request.

These oil level sight glasses are also suitable for applications with subpressure.


Body - Stainless Steel NI, AISI 303, temperature resistant up to 180°C

Sight glass - ESG glass.

Sealing ring - rubber FPM (Viton).

Reflector (Type A) - Technopolymer (Polysulfan)

Circlip (Type B) - Stainless Steel NI AISI 301

Identification by the not black finish of the seal


Fixing nuts GN543.1

On Request

EPDM seal

SELECT HasTableOnOff FROM Series WHERE SeriesID=442

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GN743.5 Oil Level Sight Glasses Stainless Steel ESG pressurised tanks

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