One quality WN flange is the most expensive piece. A new flange weighs 1.5 kg which is about 5 kg more than the same-type flange used in old WN cameras. This means the flange must be better, sharper, more durable. We believe new style wn flanges are the best, but old style, standard WN flanges are also excellent, so we have to get you a very good replacement. 
The purpose of WN flange. Mostly the flange is for the transmission and the gearbox. Other people have put them in other places such as the steering column, brake calipers, etc.

WN flange can be used on pipelines that transport expensive, flammable and explosive media. A high-explosive flange is provided for vehicles and equipment that are designed to be transported in fuel oil. An auxiliary high-explosive flange is provided for vehicles.The flange can be mounted above a tank to prevent gas leakage beneath the vehicle as well as to provide an additional means of protection. There are two standard high-explosive flanges, the C3M flange and the D4R flange, available to install in vehicles. 
WN flange is widely used in petrochemical, urban water supply and power systems. A high-speed electrical transmission line over the flange may be required when the flange-mounted electrical conduit supply is used more than 30 times per year.What's this mean for the user?The most important thing is to remember that all flanges, as well as many other electrical connections, can, and must be, tested prior to installation.An electrician should be familiar with the basic tests with which to ensure a flange-mounted electrical conduit supply is operating safely within the intended use and application. The majority of electrical systems run in a series loop and a series disconnect or disconnects a secondary flange when the primary system (flange) is not engaged to reduce the load on the primary system.