Category Products

  • SKU: AN1626K
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 3/4" NPT connection for service up to 21 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1626M
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 3/4" NPT connection for service up to 45 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1626N
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 3/4" NPT connection for service up to 72 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1626P
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 3/4" NPT connection for service up to 96 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1626R
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 3/4" NPT connection for service up to 144 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1626T
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 3/4" NPT connection for service up to 206 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 3/4" NPT connection for service up to 250 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627A
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 1" NPT connection for service up to 21 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627C
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 1" NPT connection for service up to 45 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627E
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 1" NPT connection for service up to 72 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627G
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 1" NPT connection for service up to 96 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627H
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 1" NPT connection for service up to 144 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627K
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 1" NPT connection for service up to 206 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

  • SKU: AN1627M
  • Ships within 2 business days

Armstrong model 3AV cast iron air vent with a 1" NPT connection for service up to 250 psi. The 3AV uses the same free-floating lever mechanisms used in Armstrong steam traps.

Online Price: $860.16
Regular Price: $896.00

Category Repair Parts

Category Information

Category Videos

Armstrong: Guidelines for Steam System Efficiency

Armstrong: Guidelines for Steam System Efficiency

This educational video covers basic considerations in the design, piping, and trapping of steam systems. Topics include correct sizing and installation of steam supply and condensate return lines; steam velocities in the system; proper steam trap installation; trap safety factors; the use of air vents, vacuum breakers and safety drains; and how non-condensables affect the performance and service life of heat exchanger equipment.

Armstrong: What is Steam?

Armstrong: What is Steam?

This is the basics-of-steam primer… the "Steam 101" short course on the principles of steam that leads to a thorough understanding of the concepts outlined in the many Armstrong training courses and materials. Both live action video and clear, simple animation are used to illustrate steam properties and behavior. Everyday demonstrations and a straight-forward style help make this an informative and entertaining video, whether used as an introduction or as a refresher.