Air Valves

The D-040 series PN 16 Combination Air Valve has the features of both an air release valve and an air & vacuum valve.
For the Long version  (9" = 23cm )  please choose the D-040-L PN16 Option (see more info below: **)

*Triple function Air Valve:
- Air release while filling pipe lines & components
- Air release while draining pipe lines & components
- Air release of dissolved air in water when temperature change.
* Also air suction at any vacuum condition.
The air release component is designed to automatically release small pockets of air to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure. The air & vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of  pipeline or piping system. This valve will open to relieve negative pressures whenever water column separation occurs. Working Pressure 16 Bar [230 PSI]
Available models D-040 Combination Air Valve Brochure ARI Valves : Reinforced Nylon, Optional Stainless Steel & Brass bases.

D-040L (L0NG) STANDARD MAX. PRESSURE 10 BAR PN10 - 145 P for special orders of PN16 please advise.

** The D-040L Applications:
- Small Suspended Solids
- Builds an air gap that separates the liquids with suspended particles from the sealing mechanism.
- Less water dripping for small clean rooms etc.
D-040L (Long) Combination Air Valve IOM

The SEGEV S-050 and S-050 B air release valve body made of high quality plastic, (plastic or optional BRASS base) all other mechanical parts are made of corrosion resistant materials.
Possible One Way (out) No Vacuum,  optional add on.
Pressure range: min 0.2 max. 16 Bar. [3 to 230 PSI] 

The SEGEV S-050 and S-050 B air release valve body made of high quality plastic, (plastic or optional BRASS base) all other mechanical parts are made of corrosion resistant materials.
Possible One Way (out) No Vacuum,  optional add on.
Pressure range: min 0.2 max. 16 Bar. [3 to 250 PSI] 
Pressure range for the S-052 : min 0.2 max. 25 Bar. [3 to 360 PSI] 

Description
The AV-10 Air & Vacuum Valve discharges air during the filling or charging of the system and admits air into the system during system drainage. AV-10 3/4" to AV-10 3"

Product Features
Air & Vacuum air valve.
Double function: Air & vacuum component discharges large volumes of air during filling of the system.
Product technical leaflet

The DT-040 LP Combination Air Valve is designed to prevent disturbances caused by presence or absence of air in small water supply systems. The combination air valve combines an air & vacuum large orifice and an automatic small orifice in one single body. For small orders we supply a 3/4" unit along a 1/2" reducer.
DT-040 air valve brochure ari valves  

The DT-040 LP Combination Air Valve is designed to prevent disturbances caused by presence or absence of air in small water supply systems. The combination air valve combines an air & vacuum large orifice and an automatic small orifice in one single body.