Air Vents

Cast Iron Fixed Pivot Ball Float Air/Gas Vent Model 21AR 3/4inch with 5/32 orifice

Cast Iron Fixed Pivot Ball Float Air/Gas Vent Model 21AR 3/4 NPT 92 psi, 3/32-in Orifice
Armstrong Part No: D500036

Air Vent for Hot or Cold Water and Non-Viscous Liquids, Brass Material, 1/8 inch, 50 psig max working pressure
Old Armstrong Part No: D24328
New Armstrong Part No D41789

Armstrong All Stainless Steel Free Floating Lever Air Vent, Model 11AV for 178psi with 1/8 orifice
Armstrong part no. D501408

All Stainless Steel Free Floating Lever Air Vent Model 11AV 3/4 inch in X 3/4 inch out npt, 1/8 inch orifice for 178 psi
Armstrong part no D509991

Armstrong All Stainless Steel Free Floating Lever Air Vent, Model 11V 3/4 inch, #38 orifice, 2.08 oz float
Armstrong part no. D501062

Armstrong All Stainless Steel Free Floating Lever Air Vent, Model 11AV, Connections: 3/4-in x 1/2-in Out & 2.90-oz Float for 311 psi with 5/64 orifice
Armstrong part no. C3510-8

Free Floating Lever Cast Iron Air/Gas Vent Model 1AV 1/2 inch, 173 psi with 7/64 orifice
Armstrong Part No: D501841

Free Floating Lever Cast Iron Air/Gas Vent Model 1AV 1/2 inch , 219 psi with #38 orifice

Free Floating Lever Cast Iron Air/Gas Vent Model 1AV 3/4 inch, 300psi with 5/64 orifice
Armstrong Part No: C3510-12