Talis: Air Valves

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Talis-Erhard
Talis: Air Valves

Air Valve TWIN-AIR

DN 50 – 200
PN 10 – 40
Body: EN-JS 1050
Coating: inside enamelled, outside epoxy / inside and outside epoxy

Automatic air admission and air release of water pipelines in plants, buildings and valve chambers. For potable water.

Features

Automatic air admission and release of the pipeline during filling, operational air release and during the emptying process.
Compact design with low weight
Large cross-section with maximum air admission and release rates
Automatic operational air release via lever with patented self-cleaning during each switching cycle
Internally enamelled, externally EKB coated
Also available for seawater application

Automatic Air Valve single type

DN 25
PN 16
Body: EN-JL1040
Coating: Epoxy

Automatic air admission and air release of water pipelines in plants, buildings and valve chambers.

Features

Socket with internal thread G1 to DIN ISO 228 other connections on request
Valves for working pressure between 0,1 – 16 bar
Single chamber vlave with float for dissipating small air flow rates
Cross-section dependent on water level
Automatic pipe air release and admission during filling, during operational air release and the discharging / Draining process
Compact and robust design with low weight
With threaded connection, flange connection on request
Also available with air-intake stop

Air Valve for Waste Water and Sewage

DN 80 – 200
PN 10 – 16
Body: EN-GJL-250
Coating: Epoxy

Specially designed air valve required for waste water and sewage.

Features

Simple and robust design
Air quantity can be adjusted precisely
Large free space between float and inner body wall so that suspended particles and foreign bodies cannot result in blockages
Three air nozzles in the upper chamber with reduced inlet connection against which the float is in firm contact, preventing the penetration of dirt and the occurrence of turbulences.

Disc type air inlet valve

oating: Epoxy

Automatic ERHARD Disc type air inlet valve are used for larger pipelines in dams, for transporting or turbines. They are protecting the pipeline against dangerous vacuum. This phenomena can be caused by a quick turn-off of pumps, fast draining or fracture of the pipeline.

Features

Automatic air admission for larger pipelines
Large cross section for maximum air inlet
Coated with EKB
Design and dimensioning depending on working conditions
Additional TWIN-AIR air valve for air evacuation under working pressure
On request with additional resilient gate valve as inspection valve for the TWIN-AIR