The Beaver AB Series Air Valve is a combination air valve with two main functions: removing large amounts of air during the filling process and admitting air into the pipeline while it’s being emptied.
For the body lining, this custom-built valve uses Slurryflex Grade-A rubber, a specialty rubber compound that exhibits excellent resilience against wear and abrasion. The lining can be further customised with other materials, including custom-engineered polymer, to further boost abrasion resistance.
The Beaver AB Series Air Valve is specifically engineered for demanding slurry applications and other severe services involving undissolved solids.
Technical specifications
Brand
Beaver
Model
AB150 (Class 150)
AB300 (Class 300)
AB300 (Class 300)
Size range
DN25–300 (1–12”)
Pressure class
Class 150
Class 300
Class 300
Temperature range
-29°C to +80°C
End connections
Flanged
Design and manufacture
ASME B31.3
ASME B16.34
ASME B16.34
Testing and inspection
API 598
Material specifications
Body and bonnet
Carbon steel
Stainless steel
Duplex and super duplex stainless steel
Exotic alloy
Stainless steel
Duplex and super duplex stainless steel
Exotic alloy
Body and bonnet coating
Multi-pack polyurethane
Multi-pack modified epoxy
Custom options
Multi-pack modified epoxy
Custom options
Body lining
Slurryflex Grade A rubber
Polyurethane
NBR
Bromobutyl
Custom-engineered polymer
Polyurethane
NBR
Bromobutyl
Custom-engineered polymer
Float
HDPE
Nitrile-coated aluminium or stainless steel
Bromobutyl-coated aluminium custom engineered polymer
Urethane-coated aluminium or stainless steel
Nitrile-coated aluminium or stainless steel
Bromobutyl-coated aluminium custom engineered polymer
Urethane-coated aluminium or stainless steel
Seal
Wear-resistant natural rubber
Urethane
Nitrile
Bromobutyl
Custom-engineered polymer
Urethane
Nitrile
Bromobutyl
Custom-engineered polymer
Gasket
NBR