GAUGE GLASS 2017-09-12T18:25:46+00:00

Gauge glass

Safety sight and level gauge glasses offered by us have proved themselves universally where visual process control is essential.

Particularly in pressure vessels subjected to thermal and chemical stresses and liquid level gauge application.

They are manufactured by reputable, global companies, which guarantees superior quality and stability of parameters.

A high safety level is secured through the use of special borosilicate or aluminosilicate glasses of high chemical durability, exceptional purity and homogeneity.

The low thermal expansion coefficient of glass, combined with thermal prestressing (tempering) creates a high resistance to sudden temperature changes (thermal shock) and high resistance to alkalis, acids and condensates.

The material properties and small dimensional tolerances are guaranteed by production and quality controls. With these exceptional safety characteristics safety sight and level gauge glasses can be used under extreme operational conditions.

Gauge Glass | Products

We offer a wide range of high quality liquid level gauge glasses manufactured according to DIN 7080/7081 and BS 3463, meeting the main international standards (eg. JIS B 8211, MIL – G – 16356 D, ÖNORM M 7354, OMV-Spez. H 2009 Esso Eng. Spec. 123, SOD Spec. 123) and satisfy the additional customer requirements. Please contact us for further information.

Depending on the method of production, there are two main groups of liquid level gauge glasses:

With one-sided imprinted grooves, which enhances the visibility of liquid level. For reflex glasses mica shields are not applicable.

John Moncrieff Ltd offers Maxos Brand Reflex level gauge glasses. Maxos is the brand behind all leading Level Gauges : Jerguson (Clarke Reliance), Penberthy, Klinger, Bonetti, Bunki Boeki and Nihon Klingage. The glass can be either borosilicate (“extra hard”) or aluminosilicate glasses.

Clear (smooth on both sides). In order to increase the resistance to operating conditions (pressure, temperature, aggressive environment), transparent glass is typically protected by mica shields on the medium side.

John Moncrieff Ltd offers Maxos Brand Transparent level gauge glasses. Maxos is the brand behind all leading Level Gauges : Jerguson (Clarke Reliance), Penberthy, Klinger, Bonetti, Bunki Boeki and Nihon Klingage. The glass can be either borosilicate (“extra hard”) or aluminosilicate glasses.

Both types of glasses come in a range of standard sizes. These sizes will suit most applications however custom-made sizes are also available – please contact us with your enquiry.

Level gauge glasses may also be supplied as a complete set along with gaskets and/or mica.

Reflex Gauge Glass
Reflex Gauge Glass
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Transparent Gauge Glass
Transparent Gauge Glass
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