Air Vents

Cast Iron Fixed Pivot Ball Float Air/Gas Vent Model 21AR 3/4 inch, 133 psi, 5/64 Orifice Vent
Armstrong Part No: D500631

Armstrong All Stainless Steel Free Floating Lever Air Vent, Model 11AV 1/2-in in & out NPT connections, for 118psi with 1/8 orifice, 2.08 oz float
Armstrong part no. D510119

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 , 219 psi with #38 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

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

Free Floating Lever Cast Iron Air/Gas Vent Model 1AV 3/4 inch, 219 psi with #38 orifice

See-thru Body Free Floating Ball Float Mechanism Air vent Model 1AVC 1/2 inch inlet x 3/4 oulet x 1/2 inch/vent, 150 psi