Automatic air valve, single-chamber type
Air valve for drinking and service water up to 50°C
DN 50 - 200, PN 10 - 25

Single-chamber valve directly operated by the medium;
Two-level venting system with 3 functions; 
-	Large opening:
	For the intake of large amounts of air to prevent the formation of vacuums 
-	Orifice opening:
Calculated orifice for controlled air release;
the orifice constructed for a max. filling velocity of 3 m/s  
-	Air release during operation:
To release small amounts of air during operation 

Safe operation even at large volume, high-speed discharge up to the speed of sound;
With test and purge connection;
Female-thread cap for the connection of fittings;
Flange connection dimensions to EN 1092;
All parts in touch with the medium to KTW and DVGW Code of Practice W270 (no bacteriological risk);
Body made of ductile cast iron EN-GJS-400-15 (GGG-40);
Bonnet made of stainless steel 1.4308;
Bonnet screws made of stainless steel A2 (DIN EN ISO 3506);
Inner parts made of stainless steel 1.4541;
Floater made of Polypropylen;
Seal made of EPDM
Orifice made of stainless steel 1.4021;
Check valve made of brass

Corrosion protection:
Inside and outside with epoxy coating to GSK standards for heavy-duty corrosion protection to 
DIN 30 677-2, coating thickness >250 µm, colour: RAL 5005 blue

VAG DUOJET® Anti-Surge Automatic Air Valve or equivalent	

Manufacturer:	VAG GmbH
		Carl-Reuther-Str. 1	
		68305 Mannheim
		Germany
		www.vag-group.com

Varieties:
- insect protection for the outlet bore 
- seal for low operating pressures of > 0.1 bar

Quantity ........    €/piece ........    €/item .......