Nema Winkelmann

Durable and reliable: As a manufacturer of high-quality pressure expansion vessels, Nema Winkelmann is able to draw on the expertise and optimised processes of the Winkelmann Group.

In its modern factory in the Turkish city of Düzce, the company produces a wide variety of high-performance pressure expansion vessels for heating and cooling systems, potable water and sanitary water systems as well as hot water storage systems.

Our Factory

Thanks to in-house research and development, collaboration with research institutions and government standardisation bodies as well as the deployment of state-of-the-art production methods, Nema Winkelmann is among the most innovative in their sector. Our products and solutions for applications in heating, cooling, energy and plant engineering are worldwide known for their efficiency, performance and reliability.

Leading products, optimised processes and qualified employees provide the basis for satisfying our customers in the industry, in plant engineering, by wholesale trade as well as by installers.

Functional Principle of Expansion Vessels

The correct pressure is a prerequisite for the proper operation of heating, solar power and cooling water systems as well as pressure booster systems. lt is essential to maintain water at a stable balance, compensate for variations in volume at regulated pressure and prevent gas separation and cavitation.

Expansion vessels offer an easy but intelligent solution. No external energy is needed, neither electrical power, a compressor or a pump. The construction of an expansion vessel is simple: A bladder divides the vessel into a water and a gas chamber and therefore prevents gas from diffusing into the water.

While the water chamber is linked to the system by a vessel connection, the correct pressure in the gas chamber is set by using a filling valve at the top of the expansion vessel. The gas pressure is needed to balance changing water volume or pressure differences.

Scope of Applications

Water Supply Applications

HVAC Applications

Sanitary Hot Water Applications

Hydropneumatic/ Expansion Tanks

Vertical Hydropneumatic Tanks

1 Type

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Horizontal Hydropneumatic Tanks

1 Type

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In-line Hydropneumatic Tanks

3 Types

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Our Factory

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 its modern factory in the Turkish city of Düzce, the company produces a wide variety of high-performance pressure expansion vessels for heating and cool- ing systems, potable water and sanitary water systems as well as hot water storage systems.

Because Nema Winkelmann concentrates on what is really important, these products provide the perfect solutions to numerous challenges in building technology applications involving the supply and delivery of water.

Our vessels meet the most stringent requirements not only with regards to quality and reliability but also in terms of increasing cost sensitivity and time pressure during installation and assembly.

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.

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Trusted by clients all over the world

Phone Number

+91-22 4609 8154