Air-admittance valves: Advanced technology, compact design

Air-admittance valves

For a drainage system to work properly, it must be properly vented. Otherwise, negative pressure can suck out the water seal in the trap allowing sewer gas to enter the room. Dallmer air-admittance valves offer a quick, standard-compliant solution.

 

Dallmer air-admittance valves put a stop to noises and bad smells from pipework.

Air-admittance valves are mechanical valves that equalise the pressure in the pipe system. In the case of negative pressure in the pipe system, the ventilation valve opens and fresh air is sucked into the pipe until the pressure is equalised again. This prevents the trap being sucked dry, which would enable sewer gases to enter the room. As long as the pressure is equal, the ventilation valve remains closed, and in the event of overpressure, it seals the system. 

Air-admittance valves ensure long-term and problem-free functionality even without maintenance. Dallmer impressively combines form and function. The cover plates can be individually painted in-situ or chrome-plated so that, as well as delivering technical quality, the valves also harmoniously blend with the bathroom landscape.

 

Air-admittance valves

DallVent Maxi

DallVent Maxi

 DN 70/DN 90/DN 100

DallVent Mini

DallVent Mini

 DN 40/DN 50, 1 1/2"

Air-admittance valve 900

Air-admittance valve 900

DN 100

 
Air-admittance valve 904

Air-admittance valve 904

DN 40/DN 32/DN 50

Air-admittance valve 902 T

Air-admittance valve 902 T

DN 40

Air-admittance valve WE

DallVent WE

DN 50/DN 70

 
DallVent WE

A practical and elegant solution for front wall and solid wall installation

DallVent Mini/Maxi

With integrated thermal insulation, for the ventilation of wastewater pipes 

 
 
DallVent WE
DallVent WE

A practical and elegant solution for front wall and solid wall installation

1
DallVent Mini/Maxi
DallVent Mini/Maxi

With integrated thermal insulation, for the ventilation of wastewater pipes 

2
Shape Copy 3 Created with Sketch.

Drainage by design.
Since 1913

 
 

Registered Address

Dallmer Ltd. 
c/o Seago and Stopps Limited 
61 Station Road 
Sudbury, Suffolk CO 10 2 SP 
United Kingdom 
Co. Reg. No.: 03235118

Business Address

Dallmer GmbH + Co. KG 
Wiebelsheidestrasse 25 
59757 Arnsberg 
Germany

T +44 (0) 17 87 24 82 44 
slsdllmrcm 
ccntsdllmrcm 
www.dallmer.com

 
 
Shape Copy 3 Created with Sketch.

Show address

Registered Address

Dallmer Ltd. 
c/o Seago and Stopps Limited 
61 Station Road 
Sudbury, Suffolk CO 10 2 SP 
United Kingdom 
Co. Reg. No.: 03235118

Business Address

Dallmer GmbH + Co. KG 
Wiebelsheidestrasse 25 
59757 Arnsberg 
Germany

T +44 (0) 17 87 24 82 44 
slsdllmrcm 
ccntsdllmrcm 
www.dallmer.com

 



 
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