Durable and reliable: As a manufacturer of high-quality diaphragm pressure
expansion vessels, Nema Winkelmann is able to draw on the expertise and optimised processes of the Winkelmann Group.
In accordance to ISO ISO 9001:2015 Quality Management System, all pro-
cesses have been streamlined with most attention to quality, hence customer satisfaction. All our products are designed, manufactured and certified according to EN 13831 and PED 2014/68/EU respectively.
