Knowledge itself often isn´t enough. Only through long years of experience we´re able to know the latest perils of technology and assess. Good to know for you that Klassmann and Kaiser is your competent partner and already satisfied customers like these:

Minimax GmbH

Total Feuerschutz GmbH

Siemens AG

Areva Deutschland

Areva Schweiz

Bilfinger Berger Hochbau GmbH

Aachen-Arcaden, Treppenhaus

Deutsche Bahn AG


IBM-Deutschland GmbH

Airbus Deutschland GmbH

RWE Power

RWE Kraftwerk

Main Nova Frankfurt

AIR-Team Lufttechnische Anlagen

Vigiles Brandschutzanlagen GmbH


Imtech Deutschland GmbH & Co. KG

GEA Maschinenkühltechnik GmbH

SAG Montagesellschaft mbH

SAG Netz- + Energietechnik GmbH

BASF: Schaltanlagen

LuxConnect: Löschanlagen

Kraftwerk Wilhelmshafen


E.ON Ruhrgas

RWE Kraftwerk Niederaußem

Thyssen-Krupp Nirosta

MEWA Lauenburg

Kraftwerk Dörverden

Kraftheizwerk Stavenhagen

Hersteller für Sondercontainer


Audi Neckarsulm


FBC Frankfurter Bürocenter

RWE KW Goldenberg

Uni Paderborn

SEW Bruchsal

Kraftwerk Wilhelmshafen

MHKW Bremen

KWK Kolb

RWE Kraftwerk Weisweiler

Klinikum Mannheim

BASF Limburgerhof

Nobilia Verl

Upper Eastside Berlin

MDR Leipzig

Globalfoundries Dresden

Marienkrankenhaus Siegen

Sky Deutschland

E.ON. ERC Aachen

HUK Coburg

Luitpoldhaus Nürnberg

BASF Limburgerhof

Audi Ingolstadt

Barcoo Control Rooms Karlsruhe

TPA in Magdeburg

MDR Leipzig

SCA Mannheim

Technisches Betriebszentrum München

Hörmann Ginsheim

Roto Frank Gebäudelemente

Druckzentrum Mittelrhein Verlag

MHKW Ruhleben

Klinikum Giessen

Wacker Chemie Nünchritz

Museumswinkel Erlangen


Press information for pressure relief dampers

Klassmann & Kaiser one of Germany's leading providers of handmade pressure relief valves in vertical and horizontal design for wall mounting, wall integrated, roof top and staircase and pressure relief valves for the window and door cultivation reveals their delivery program for whole Europe.

The maintenance- free and stable pressure relief valves are made of aluminum of the highest precision standards. With comfort features such as grip-guard inside, an affordable frame (saves plastering work if necessary) and an outer weatherproof frame, the pressure relief valves of Klassmann & Kaiser are perfect for horizontal and vertical, the stairway, server rooms, technical equipment and fire protection systems installation.
Each pressure relief damper is made for all common duct connections without exception in Germany by hand. Stock delivered the flaps are closed. Whether the chamber pressure increases above the predetermined value the valves will de opened and closed whether the pressure drops independent again. All pressure relief valves are manufactured without any welds and are heat resistant up to 80 °C. At its end the flaps of the pressure relief valves are based on high quality deep groove ball bearings and are suitable for use in both vertical and horizontal air currents.

As an additional option the German plant manufacturer Klassmann & Kaiser offers a flexible coating which effectively prevents any condensation. Furthermore the pressure relief valves are fitted with a 4-sided internal insulation. The CE -certified pressure relief valve dampers can also be offered with powder-coated or anodized finish. Even available as heated version - Made in Germany. A limit switch and actuators are completing the optional upgrades of the pressure relief valve dampers of Klassmann & Kaiser.

In addition to the telephone- and online support of the engineering company also offers a Europe-wide installation of the fabricated pressure relief valves. As the company draws up every day pressure relief valve dampers on customer´s request and the most common DIN dimensions are on stock (for stock info please visit flaps are sent every day all over the world.

As Klassmann & Kaiser is expanding constantly we´re seeking for worldwide distributors!