Category Products

  • SKU: AN1337
  • Ships within 2 business days

Armstrong 3/4" 3LD cast iron liquid drain with a 70 psi maximum operating pressure.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337D
  • Ships within 2 business days

Armstrong 3/4" 3LD cast iron liquid drain with a 230 psi maximum operating pressure.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337E
  • Ships within 2 business days

Armstrong 3/4" 3LD cast iron liquid drain with a 300 psi maximum operating pressure.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337H
  • Ships within 2 business days

Armstrong 1" 3LD cast iron liquid drain with a 70 psi maximum operating pressure.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337K
  • Ships within 10 business days

Armstrong 1" 3LD cast iron liquid drain with a 230 psi maximum operating pressure.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337L
  • Ships within 10 business days

Armstrong 1" 3LD cast iron liquid drain with a 300 psi maximum operating pressure.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AO1194U
  • Ships within 2 business days

Armstrong mechanism for model 3LD (70 psi) liquid drainers.

Online Price: $290.88
Regular Price: $303.00

  • SKU: AO1194V
  • Ships within 2 business days

Armstrong mechanism for model 3LD (225 psi) liquid drainers.

Online Price: $290.88
Regular Price: $303.00

  • SKU: AO1194W
  • Ships within 2 business days

Armstrong mechanism for model 3LD (250 psi) liquid drainers.

Online Price: $290.88
Regular Price: $303.00

  • SKU: AN1336H
  • Ships within 2 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 3/4" NPT connection an in-line horizontal piping configuration for service up to 33 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1336K
  • Ships within 2 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 3/4" NPT connection an in-line horizontal piping configuration for service up to 54 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337A
  • Ships within 2 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 3/4" NPT connection an in-line horizontal piping configuration for service up to 107 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337C
  • Ships within 2 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 3/4" NPT connection an in-line horizontal piping configuration for service up to 153 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337F
  • Ships within 2 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 1" NPT connection an in-line horizontal piping configuration for service up to 33 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337G
  • Ships within 2 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 1" NPT connection an in-line horizontal piping configuration for service up to 54 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337I
  • Ships within 2 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 1" NPT connection an in-line horizontal piping configuration for service up to 107 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

  • SKU: AN1337J
  • Ships within 10 business days

Armstrong model 3LD cast iron, free-floating guided lever liquid drain trap with a 1" NPT connection an in-line horizontal piping configuration for service up to 153 psi. This trap features a guidepost to ensure a positive, leak-tight valve closing under all conditions.

Online Price: $778.56
Regular Price: $811.00

Category Repair Parts

Category Information

Category Videos

Armstrong: Guidelines for Steam Trap Repair

Armstrong: Guidelines for Steam Trap Repair

Energy costs continue to rise. Increasing right along with them is the awareness—greater than ever before—of how important steam trap maintenance is to conserving energy and saving dollars.

Armstrong: Drain Separator Operation

Armstrong: Drain Separator Operation

This video showcases how Armstrong's centrifugal drain separators operate. Drain separators remove moisture and particulates 10 microns and larger from steam to improve the quality of steam. They are most often use ahead of equipment where dry steam is essential.

Armstrong: Let's Talk Steam Traps

Armstrong: Let's Talk Steam Traps

Armstrong offers a full range of steam traps as well as the remarkable trap valve station (TVS) to integrate valves and traps into one versatile package for quicker installation, simplified testing and faster maintenance.

Armstrong: Guidelines for Steam Trap Troubleshooting & Testing

Armstrong: Guidelines for Steam Trap Troubleshooting & Testing

This video recommends a step-by-step approach plant energy technicians can take to steam trap testing and problem solving. It emphasizes use of the faculties of both sight and hearing in gathering information, then applying training and experience to properly evaluate the results.

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.