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MODEL GAV-15 AUTOMATIC AIR VENT
Valve
Size
Maximum
Temp.
Inlet Size
NPT
Outlet Size
NPT
Orifce
Size
Approx.
Wt. Ea
In./mm °F/°C
In./mm
In./mm
In./mm Lbs./Kg
1
/
2
250
1
/
2
1
/
2
1
/
16
5
1
/
2
15
120
15
15
2
3
3
/
4
250
3
/
4
1
/
2
1
/
16
5
1
/
2
20
120
20
15
2
3
1
250
1
1
/
2
1
/
16
5
1
/
2
25
120
25
15
2
3
MODELS GAV-15
Automatic Air Vents For Ultimate Performance
• Two Sizes Equip All Riser Systems
• Spherical Float for Strength
• Stainless Steel Float and Trim
• Special Design Eliminates Blow-by
The Air Vent (GAV) features a Stainless Steel spherical foat
design. Air in the piping system is vented through the discharge
valve that is normally open. Rising water activates the foat to
close the valve. The valve outlet is tapped to take a safety
drain line.
Simplicity of design in the GAV ensures long-lasting effciency.
The Stainless Steel foat and valve mechanism involve no wearing
parts, and no intricate function. The precision formed cast iron
body custom fts the foat and valve, and protectively houses
their operation under the most demanding conditions.
Max. Working Pressure
175 PSI (12 bar) @ 150° F (66° C)
150 PSI (10 bar) @ 250° F (121° C)
Test Pressure
300 PSI (21 bar) @ 70° F (21° C)
material specifications
1. BODY:
Cast Iron ASTM A 126, Class B
2. COVER:
Cast Iron ASTM A 126, Class B
3. LEVER FRAME:
Stainless Steel-T304, ASTM A 240
4. SEAT:
Stainless Steel-T303, 582
5. FLOAT:
Stainless Steel-T304, ASTM A 240
6. GASKET:
Non Asbestos
7. COVER BOLT:
Carbon Steel-Sae Grade 5
10 FLOAT ARM:
Stainless Steel-T304, ASTM A 240
11. ORIFICE BUTTON:
Viton
12. PIVOT PIN:
Stainless Steel-T303, 582
13. PIN RETAINER:
Stainless Steel-Ph 15-7 MO
14. PIPE PLUG
1
/
2
":
Steel
21. LOCATOR:
Stainless Steel-T304, ASTM F 593
MODEL GAV-15 AUTOMATIC AIR VENT
Type
Max.
Water
Pressure
Max.
Temp.
Inlet
Size
Outlet
Size NPT
Valve
Orifce
Overall
Approx.
Wt. Ea
Height
Width Length
PSI/bar
°F/°C
In./mm In./mm In./mm In./mm In./mm In./mm Lbs./Kg
GAV-15 150
250
1
/
2
,
3
/
4
& 1
3
/
8
1
/
16
5
1
/
4
4
3
/
4
4
3
/
4
5
1
/
2
10
120 15, 20 & 25 10
2
130
100
100
2.5
5
1
/
4
"
4
3
/
4
"
OUTLET
INLET
GL-2.10