How to deliver the right pressure from Hanover to Paris.

Waldemar Pruss was an inquisitive man. Driven by a strong desire to find efficient technical solutions for diverse tasks in everyday life – he even invented a special alarm clock, that does its job in a very softly manner and a card stand that’s still in use in numerous schools – he finally focused on valves for gas pipes and heating valves. And there we are in Paris: The historic valves in the gas lanterns on the Champs-Elysee are designed and delivered by Pruss.
But enough of the beginning – here’s our story in brief.

Our history in numbers

Under pressure since 1889.

1800

1889
Foundation as sub supplier for Körting jet nozzles in Hanover, Lilienstr. 11

1890
Development of Explosion-safe gas-valves for gas lightning

1891
Moved to Lilienstrasse 14

1892
Development of the steam double-seat control valve

1895
New lathing shop building

1897
New foundry builing in the Lilienstrasse

1899
Foundation "Armaturenfabrik Waldemar Pruss"

1899
Moved to Strangriede 54

1900

1906
Waldemar Pruss retires due to eye disease, his son-in-law Friedrich Schulz takes up his position

1929
The Pruss balancing valve is developed and patented

1936
Extension of product range, production of remote Controller valves. Pruss Takes up construction and production of industrial valves

1943
Production facilities destroyed in WW II

1948
Reconstruction of the facilities

1950

1954
Moved to Schulenburger Landstrasse 261

1989
100th anniversary

1990
Pruss takes up construction and production of high-end control valves for gas turbines

1997
Take-Over by "Certina Holding"

1998
Acquisition of "Hannemann Düsseldorf", manufacturer of water and steam control-valves. Pruss is now offering a full range for combined Cycle power plants.

1999
Additional specialisation in gas compression. Cast bodies up to DN 700 PN 100, bodies from sheetmetal up to DN 1600, steam conditioning stations up to DN 1600 available.

2000

2000
Production sites of "Hannemann" move from Düsseldorf to Hanover.

2002
Major Investments in machinery successive conversion to CNC production. Automation of test procedures.

2010
First HDUs with design temperatures over 618°C

2012
Construction of a new production hall for machining centers and optimized production processes.

2014
125th anniversary. More than 30 international agencies. Development of a complete range of actuators – pneumatic and hydraulic.

2015
Presentation of the revolutionary actuator PEHD

2016
Conversion to 3D-construction and automated documentation

2016
Modernisation of the office section

2017
Automated Construction

2018
Start of in-house rapid prototyping via 3D-printing

Today: 100 Employees 11 Sales engineers, 13 development engineers, 2.591 orders, 1.600.000 flight miles a year, clients all over the world and a turnover of 17 million Euros.