Registration Date 26 Apr 2017

25Kv Mk 1 Railway Insulator


Renewable Energies Power Transmission



NPD Conjectured

Titanium dioxide

TiO2 Nanoparticle /Nanopowder CAS Number : 13463-67-7




Designed to replace porcelain portal insulators above and below the gantry, these insulators take some of the highest loads of any insulators in railway service. They can also be used for independent registration where higher mechanical loads are being specified e.g. in tunnel applications where large support tubes require small deflection characteristics.


Manufacturer's Description

A reliable Rail network requires reliable insulators at its heart and although many new designs have been added to our ever expanding range over the years, the formulation of our EPDM has never changed and our reliable service history continues to be one of our greatest assets.Moulded onto high strength GRP rods, our range of insulators utilise WT Henley's unique EPDM cladding. This highly successful material has been well proven right around the World from desert conditions of Africa to the iced expanses of Canada and has also been used by many Electricity utilities for 40 years.Innovative self cleaning designSome of the harshest environments we have encountered are those on the Ayrshire coast in Scotland. At this particular location, the 25kV electrified railway catenary network, runs parallel with the coast for some 20 miles. As a result the system is continually subjected to an aggressive sea-salt environment. At its worst the sea waves crash over the catenary itself. To help overcome such problems under these conditions when using traditional ceramic insulator technology, washing, replacement and/or an increased number of units are required. In using WT Henley's Polymeric technology, the open profile design and self cleaning nature of our insulators, ensures greatly improved system reliability.