Cost Savings
Reduced fire protection requirements and simpler installation lower the cost of a transformer project — and the cost of running it.

Welcome to MIDEL Service Partner – MV-Lub

From the world’s leading brand of ester transformer fluids to preventing transformer fires and protecting what matters — the whole case for ester, without a word of ours.
We are your expert for Ester Transformer Fluids
Reduced fire protection requirements and simpler installation lower the cost of a transformer project — and the cost of running it.
High fire points classify MIDEL as a K-class less flammable liquid — transformers can stand where mineral oil cannot.
Readily biodegradable and non-toxic. In the event of a leak, soil and water stay protected.
Superior moisture tolerance and operation at 20 % overload keep the network up when demand peaks.
Synthetic and natural esters — and the service that keeps them in use.
Natural esterMIDEL eN 1204
Natural ester from renewable rapeseed. Readily biodegradable, non-toxic and with a high fire point — the everyday choice for distribution transformers.
Synthetic esterMIDEL 7131
The original synthetic ester. High fire point and superior moisture tolerance — proven in power transformers from city substations to underground sites.
Natural esterMIDEL eN 1215
Natural ester based on soya bean. A renewable alternative with the same fire safety and environmental benefits as the rest of the range.
ServiceMIDEL Regen
Regeneration for ester fluid in service: the fluid stays in the transformer’s life cycle instead of being disposed of — a circular answer to maintenance.
As MIDEL Service Partner, MV-Lub supplies ester transformer fluids across Europe — from the first specification to delivery, retrofilling and support on site.
Trackside transformers, Paris

Ester fluids do not just replace mineral oil — they change what a transformer is allowed to do, and where it is allowed to stand.
Fire safety and biodegradability of ester fluids confirmed by the US Bureau of Reclamation.
K-class classification means less flammable — and fewer fire walls, bunds and separation distances around the unit.
Ester absorbs far more water than mineral oil before insulation performance suffers, which protects the paper and the asset.
Headroom when demand peaks — capacity you already own, without a second transformer.
Suitable for water protection zones, city centres, tunnels and offshore platforms.
Tell us about your transformer, your site and your timeline — we will come back with the right MIDEL fluid and a delivery date.