Armstrong air vents employ a free-floating lever design to discharge non-condensable gases. This float-operated design allows the vents to instantly and automatically adjust to variations in gas flow and pressure, increasing system efficiency. Armstrong air vents can remove gas from liquids with gravities as low as 0.40 and pressures to 2,700 psi (186 bar). Armstrong air vents are available in a variety of sizes, end connections, and materials. Applications for Armstrong float-type air vents include hydronic heating systems, water service lines, water storage tanks, centrifugal pumps, gas lines, solvent filters, and similar equipment.

Category Products

  • SKU: AN1637R
  • Ships within 48 hours

Armstrong model 13AV all stainless steel air vent with a 1" NPT connection for 7/64" orifices and service up to 570 psi. The 13AV provides positive venting of air/gases under pressure. The vent's body and caps are welded together to form a permanently sealed, tamperproof unit with no gaskets. Elliptical floats and high leverage enable the 13AV to provide a capacity up to 115 SCFM. Lever action is guided to ensure proper seating of the valve under all operating conditions. The vent features the same free-floating mechanisms used in other Armstrong steam traps.

Online Price: $1,474.42
Regular Price: $1,617.10

  • SKU: AN1635M
  • Ships within 48 hours

Armstrong model 22AV all stainless steel air vent with a 3/4" NPT connection for service up to 35 psi. The 22AV provides positive venting of air/gases under pressure. The vent's body and caps are welded together to form a permanently sealed, tamperproof unit with no gaskets. Elliptical floats and high leverage enable the 22AV to provide a capacity up to 115 SCFM. Lever action is guided to ensure proper seating of the valve under all operating conditions. The vent features the same free-floating mechanisms used in other Armstrong steam traps.

Online Price: $680.31
Regular Price: $737.00

  • SKU: AN1635K
  • Ships within 48 hours

Armstrong model 11AV all stainless steel air vent with a 3/4" NPT connection for service up to 400 psi. The 11AV provides positive venting of air/gases under pressure. The vent's body and caps are welded together to form a permanently sealed, tamperproof unit with no gaskets. Elliptical floats and high leverage enable the 11AV to provide a capacity up to 115 SCFM. Lever action is guided to ensure proper seating of the valve under all operating conditions. The vent features the same free-floating mechanisms used in other Armstrong steam traps.

Online Price: $288.00
Regular Price: $312.00

  • SKU: AN1635H
  • Ships within 48 hours

Armstrong model 11AV all stainless steel air vent with a 3/4" NPT connection for service up to 267 psi. The 11AV provides positive venting of air/gases under pressure. The vent's body and caps are welded together to form a permanently sealed, tamperproof unit with no gaskets. Elliptical floats and high leverage enable the 11AV to provide a capacity up to 115 SCFM. Lever action is guided to ensure proper seating of the valve under all operating conditions. The vent features the same free-floating mechanisms used in other Armstrong steam traps.

Online Price: $288.00
Regular Price: $312.00

  • SKU: AN1635C
  • Ships within 48 hours

Armstrong model 11AV all stainless steel air vent with a 1/2" NPT connection for service up to 400 psi. The 11AV provides positive venting of air/gases under pressure. The vent's body and caps are welded together to form a permanently sealed, tamperproof unit with no gaskets. Elliptical floats and high leverage enable the 11AV to provide a capacity up to 115 SCFM. Lever action is guided to ensure proper seating of the valve under all operating conditions. The vent features the same free-floating mechanisms used in other Armstrong steam traps.

Online Price: $288.00
Regular Price: $312.00

  • SKU: AN1635A
  • Ships within 48 hours

Armstrong model 11AV all stainless steel air vent with a 1/2" NPT connection for service up to 267 psi. The 11AV provides positive venting of air/gases under pressure. The vent's body and caps are welded together to form a permanently sealed, tamperproof unit with no gaskets. Elliptical floats and high leverage enable the 11AV to provide a capacity up to 115 SCFM. Lever action is guided to ensure proper seating of the valve under all operating conditions. The vent features the same free-floating mechanisms used in other Armstrong steam traps.

Online Price: $288.00
Regular Price: $312.00

  • SKU: AN1635
  • Ships within 48 hours

Armstrong model 11AV all stainless steel air vent with a 1/2" NPT connection for service up to 178 psi. The 11AV provides positive venting of air/gases under pressure. The vent's body and caps are welded together to form a permanently sealed, tamperproof unit with no gaskets. Elliptical floats and high leverage enable the 11AV to provide a capacity up to 115 SCFM. Lever action is guided to ensure proper seating of the valve under all operating conditions. The vent features the same free-floating mechanisms used in other Armstrong steam traps.

Online Price: $288.00
Regular Price: $312.00

  • SKU: AN1628R
  • Ships within 48 hours

Armstrong model 6AV cast iron air vent with a 2" NPT connection for service up to 210 psi. The 6AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $1,478.83
Regular Price: $1,621.94

  • SKU: AN1628P
  • Ships within 48 hours

Armstrong model 6AV cast iron air vent with a 2" NPT connection for service up to 148 psi. The 6AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $1,478.83
Regular Price: $1,621.94

  • SKU: AN1628N
  • Ships within 48 hours

Armstrong model 6AV cast iron air vent with a 2" NPT connection for service up to 102 psi. The 6AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $1,478.83
Regular Price: $1,621.94

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