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Oil level sight glasses

Oil level sight glasses

Our oil level sight glass components provide a simple way of reading the level of fluid in a container or tank. They are ideal for level control of a liquid or fluid on tanks or hydraulic systems.

We have manufactured these hydraulic accessories using superior materials to ensure they are reliable and high performing. The materials in this range are:

  • Technopolymer
  • Aluminium
  • Stainless steel
  • Brass

By using these different plastics and metals, we have created sight glasses that are resistant to contact with different liquids and oils, at low or high temperatures and so perfect for many industrial uses.

A number of our oil sight glass components are also available in the ATEX version. This means that they comply with the Essential Health and Safety Requirements of the European Directive ATEX 94/9 / EC (explosive atmospheres) for Group II appliances, category 2GD. These ATEX Directive elements—including HGFT-EX and HCFE-EX—provide high protection against the risk of explosion. HGFT-EX is characterised by a glossy yellow technopolymer finish, while HCFE-EX is made using transparent polymer. This clear component should be tightened to the recommended torque to guarantee an optimal seal and prevent accidental loosening.

Suitable for use with liquids of high temperatures is our GN 743.1 range of products. Made from either natural or anodised aluminium, with or without reflector, or brass, these sight glasses can withstand temperatures up to 180°C. We also supply a technopolymer glass that is suitable for use with a maximum temperature of 140°C at 7 bar pressure. Our technopolymer version features a window that consists of a continuous series of prisms. This provides a clear and immediate reading of the level of the oil contained in the reservoir.

As well as a vast range of Elesa oil level sight glass components, we also provide breather filters for use on machinery and equipment. They ensure the pressure balance between the internal and external environment to prevent traces of dirt and dust particles from escaping. These filters defend the inside of sensitive devices and machinery parts from dirt and pollution, and at the same time protects the external environment by the leakage of dust particles.

You can find our extensive selection of level sight glasses—in a vast range of sizes—and accompanying accessories in the Elesa catalogue.