Armstrong H Series Circulator Pumps Buyers Guide & Review

The Armstrong H series of in-line circulator pumps is suitable for domestic hot water systems. This series is built using a standard three-piece design that features a radially-split body, oversized shaft, centrifugal impeller, positive mechanical seal, and modular construction. The H series has been used by HVAC professionals for decades because it is cost-effective, durable, and easy to maintain.

Features

  • Standard three-piece design with sleeve – oil lubricated bearing
  • Radially-split body can be left in-line while servicing pump, eliminating disconnecting of pipes
  • Oversized shaft made from special alloy steel
  • Balanced centrifugal impeller ensures maximum water delivery in the HVAC system
  • Proven seal design made from strong and long-lasting materials for extended operating life
  • Three piece modular construction and back pull-out design for easy replacement of wear components
ARMSTRONG H SERIES CIRCULATOR PUMPS
armstrong h series circulator pumps
Armstrong H Series Circulator Pumps

Model Comparison Chart

Model Flange Size (NPT) HP Voltage Phase GPM Max. Head
H-32 Flanges Sold Separately 1/6 115 1 36 12′
H-32 Flanges Sold Separately 1/6 115 1 36 12′
H-41 1″ 1/6 115 1 21 17′
H-51 1″ 1/4 208-230/460 3 42 24′
H-52 1-1/4″ 1/3 208-230/460 3 52 26′
H-51 1″ 1/4 115 1 42 24′
H-52 1-1/4″ 1/3 115 1 52 26′
H-32 Flanges Sold Separately 1/6 115 1 36 12′
H-53 1-1/2″ 1/2 208-230/460 3 80 28′
H-41 1″ 1/6 115 1 21 17′
H-53 1-1/2″ 1/2 115 1 80 28′
H-54 2″ 3/4 208-230/460 3 95 28′
H-54 2″ 3/4 208-230/460 1 95 28′
H-41 1″ 1/6 115 1 21 17′
H-63 1-1/2″ 1/2 208-230/460 3 34 33′
H-63 1-1/2″ 1/2 115 1 34 33′
H-64 1-1/2″ 3/4 208-230/460 3 55 45′
H-64 1-1/2″ 3/4 115 1 55 45′
H-66 2″ 3/4 208-230/460 3 102 30′
H-65 1-1/2″ 1 208-230/460 3 55 57′
H-52 1-1/4″ 1/3 208-230/460 3 52 26′
H-53 1-1/2″ 1/2 208-230/460 3 80 28′
H-51 1″ 1/4 115 1 42 24′
H-51 1″ 1/4 208-230/460 3 42 24′
H-67 2″ 1 208-230/460 3 132 36′
H-65 1-1/2″ 1 115 1 55 57′
H-52 1-1/4″ 1/3 115 1 52 26′
H-66 2″ 3/4 115 1 102 30′
H-68 2″ 1-1/2 208-230/460 3 142 46′
H-67 2″ 1 115 1 132 36′
H-53 1-1/2″ 1/2 115 1 80 28′
H-54 2″ 3/4 208-230/460 3 95 28′
H-54 2″ 3/4 115 1 95 28′
H-63 1-1/2″ 1/2 208-230/460 3 34 33′
H-63 1-1/2″ 1/2 115 1 34 33′
H-64 1-1/2″ 3/4 208-230/460 3 55 45′
H-64 1-1/2″ 3/4 115 1 55 45′
H-65 1-1/2″ 1 208-230/460 3 55 57′
H-66 2″ 3/4 115 1 102 30′
H-65 1-1/2″ 1 115 1 55 57′
H-66 2″ 3/4 208-230/460 3 102 30′
H-67 2″ 1 208-230/460 3 132 36′
H-68 2″ 1-1/2 208-230/460 3 142 46′
H-67 2″ 1 115 1 132 36′
PERFORMANCE CURVES

armstrong h series circulator pumps curves

DIMENSIONS

armstrong h series circulator pumps motor data

DESIGN INFORMATION

armstrong h series circulator pumps design info

MATERIALS OF CONSTRUCTION

armstrong h series circulator pumps materials

REPAIR PARTS
armstrong h series circulator pumps replacement parts
*For a full listing of repair parts, please refer to the repair parts manual*
BROCHURE
Armstrong H Series Circulator Pump Brochure
INSTALLATION MANUAL
Armstrong H Series Circulator Pump Installation Manual
REPAIR PARTS
Armstrong H Series Circulator Pump Repair Parts

Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.