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Düker GmbH

Booth number: 2D56

About us

Düker is a privately owned manufacturer with a century-old background in Bavaria/Germany. In two foundries, Düker produces various types of cast iron piping material.

The Karlstadt factory manufactures grey cast iron drainage pipe systems for water evacuation from buildings as per EN 877. High-quality cast iron sewage pipes combine high sound insulation and non-combustibility with longevity and easy installation.

The Laufach works offer ductile iron fittings as per EN 545 for pressure pipelines in water supply and sewage systems. A large range of products makes Düker the top address for water suppliers and pipeline constructors with special requirements. A full range of gate and butterfly valves, hydrants, non-slam check valves and plunger valves completes the offer.

The specialty is the surface protection with high-quality enamel. Unlike standard coatings, enamel forms a compound material with cast iron and therefore represents the best and most hygienic corrosion protection.

Products and services

Düker manufactures various types of piping material

Düker in Laufach is the specialist in ductile iron fittings as per EN 545 with a very wide product range: numerous types of fittings, TYTON®, Novo, bolted-gland and other socket types as well as flanges; epoxy powder coating, enamel and other coatings as per customer requirements; and a range of nominal dimensions from DN 40 up to DN 1600.

For the socket connections, Düker also offers various thrust-resisting joint systems such as TYTON SIT PLUS® or NOVO-SIT® for operating pressures up to 32 or even 40 bars.

Düker also manufactures a range of shut-off valves such as gate valves, butterfly valves up to DN 1200 as well as hydrants and service connection valves. New additions are non-slam check valves and plunger valves.

The Karlstadt factory offers cast iron drainage pipe systems for building drainage as per EN 877, which combine high sound insulation and non-combustibility.

Butterfly Valve Type 4510

Butterfly Valve Type 4510

Resilient-seated, double excentric butterfly valves with slider crank gear. DN 100 up to DN 1200. Also in long body, with bypass, or with Novo sockets instead of flanges. Special versions possible e.g. with safety locking device or with ventilation connections. With hand wheel, stem extension set, electric or pneumatic actuator.

Gate Valve type 4004 for gas

Gate Valve type 4004 for gas

With yello epoxy-coating as per GSK guidelines inside and outside. Also available with short body, or with pre-installed PE pipe ends for welding; also with blow-off pipes.

SML cast iron drainage pipe system

SML cast iron drainage pipe system

Cast iron drainage pipe systems for building drainage as per EN 877. DN 50 up to DN 300/400. The complete range Made in Germany - pipes, fittings, couplings. High-quality coatings for long life expectancy. Non-combustible and soundproof.


Düker GmbH
Wuerzburger Str. 10–16
97753 Karlstadt/Main

Phone: +49 9353 791570
Fax: +49 9353 7918570

Jacques Ouanounou
Phone: +212 522622420

Sanilec Sàrl
Rue Emile Brunet Ain Borja
20300 Casablanca

Phone: +212 522 622420
Fax: +212 522 619463

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