Armstrong Series S & H Inline Circulating Pumps deliver efficient, quiet, and reliable performance for HVAC, heating, and cooling systems. Built for durability, these pumps feature a space-saving inline design, low energy consumption, and minimal maintenance needs. Ideal for closed-loop heating, cooling, and hot water recirculation, they ensure optimal fluid movement with long-lasting efficiency.
Get exactly the size gauge glass you need. No guessing. No mistakes. White Glove boxing and insurance is included in the price!
Use our proprietary one-step glass ordering system! ONLY at BoilerSupplies.com
Part # | Model # | Part Name |
Mechanical Seal Assembly |
Shaft | Impeller | Volute | Flg Size | Motor HP | Price | Qty | |
---|---|---|---|---|---|---|---|---|---|---|---|
174031-013 | S-25 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | Less Flgs | 1/12 | $786.67 | Add to Cart Add to RFQ | |
174033-013 | S-35 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 2" | 1/6 | $1,881.67 | Add to Cart Add to RFQ | |
174036-113 | S-45 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | Less Flgs | 1/4 | $2,310.00 | Add to Cart Add to RFQ | |
174037-113 | S-46 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 3" | 1/3 | $3,330.00 | Add to Cart Add to RFQ | |
174034-013 | H-32 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | Less Flgs | 1/6 | $2,470.00 | Add to Cart Add to RFQ | |
174035-113 | H-41 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 1" | 1/6 | $3,030.00 | Add to Cart Add to RFQ | |
106284-132 | S-55-1 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 3" | 1/2 1PH | $3,375.00 | Add to Cart Add to RFQ | |
106284-136 | S-55-3 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 3" | 1/2 3PH | $3,375.00 | Add to Cart Add to RFQ | |
106285-132 | S-57-1 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 3" | 3/4 1PH | $3,996.67 | Add to Cart Add to RFQ | |
106285-136 | S-57-3 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 3" | 3/4 3PH | $3,996.67 | Add to Cart Add to RFQ | |
116531-132 | S-69-1 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Brass-Stamped | Cast Iron | 3" | 1 1PH | $5,583.33 | Add to Cart Add to RFQ | |
116525-136 | S-69-3 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Brass-Stamped | Cast Iron | 3" | 1 3PH | $5,583.33 | Add to Cart Add to RFQ | |
110123-005 |
Astro 30 & 30B |
Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Iron | $315.00 | Add to Cart Add to RFQ | ||||
110123-006 |
Astro 50 & 50B |
Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Iron | $348.33 | Add to Cart Add to RFQ | ||||
174031-043 | S-25 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | Less Flgs | 1/12 | $1,385.00 | Add to Cart Add to RFQ | |
174033-043 | S-35 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 2" | 1/6 | $3,025.00 | Add to Cart Add to RFQ | |
174036-143 | S-45 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | Less Flgs | 1/4 | $4,451.67 | Add to Cart Add to RFQ | |
174037-143 | S-46 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 3" | 1/3 | $6,275.00 | Add to Cart Add to RFQ | |
174034-043 | H-32 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | Less Flgs | 1/6 | $2,470.00 | Add to Cart Add to RFQ | |
174035-143 | H-41 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 1" | 1/6 | $3,030.00 | Add to Cart Add to RFQ | |
106284-133 | S-55-1 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 3" | 1/2 1PH | $6,233.33 | Add to Cart Add to RFQ | |
106284-137 | S-55-3 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 3" | 1/2 3PH | $6,233.33 | Add to Cart Add to RFQ | |
106285-133 | S-57-1 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 3" | 3/4 1PH | $6,836.67 | Add to Cart Add to RFQ | |
106285-137 | S-57-3 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 3" | 3/4 3PH | $6,836.67 | Add to Cart Add to RFQ | |
116532-133 | S-69-1 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Brass-Stamped | Bronze | 3" | 1 1PH | $9,996.67 | Add to Cart Add to RFQ | |
116536-137 | S-69-3 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Brass-Stamped | Bronze | 3" | 1 3PH | $9,996.67 | Add to Cart Add to RFQ | |
110123-007 |
Astro 30 & 30B |
Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Bronze | $603.33 | Add to Cart Add to RFQ | ||||
110123-008 |
Astro 50 & 50B |
Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Bronze | $568.33 | Add to Cart Add to RFQ |
Armstrong H-51 to H-68 All-Bronze Inline Circulating Pumps offer corrosion-resistant performance for potable water, heating, and cooling systems. Their all-bronze construction ensures durability, while the compact inline design allows for efficient, quiet operation with minimal energy use. Ideal for long-lasting, reliable fluid circulation.
Get exactly the size gauge glass you need. No guessing. No mistakes. White Glove boxing and insurance is included in the price!
Use our proprietary one-step glass ordering system! ONLY at BoilerSupplies.com
Part # | Model # | Part Name |
Mechanical Seal Assembly |
Shaft | Impeller | Volute | Flg Size | Motor HP | Price | Qty | |
---|---|---|---|---|---|---|---|---|---|---|---|
116432-133 | H-51 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 1" | 1/4 | $4,383.33 | Add to Cart Add to RFQ | |
116436-133 | H-52 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 1-1/4" | 1/3 | $4,658.33 | Add to Cart Add to RFQ | |
116440-133 | H-53 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 1-1/2" | 1/2 | $5,118.33 | Add to Cart Add to RFQ | |
116452-133 | H-54 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 2" | 3/4 | $5,531.67 | Add to Cart Add to RFQ | |
116464-133 | H-63 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 1-1/2" | 1/2 | $7,178.33 | Add to Cart Add to RFQ | |
116476-133 | H-64 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 1-1/2" | 3/4 | $7,606.67 | Add to Cart Add to RFQ | |
116488-133 | H-65 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 1-1/2" | 1 | $8,366.67 | Add to Cart Add to RFQ | |
116500-133 | H-66 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 2" | 3/4 | $8,366.67 | Add to Cart Add to RFQ | |
116512-133 | H-67 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 2" | 1 | $9,223.33 | Add to Cart Add to RFQ | |
H-68 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 2" | 1 1/2 | $12,850.00 | Add to Cart Add to RFQ | ||
110119-101 | H-51 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 1" | 1/4 | $5,025.00 | Add to Cart Add to RFQ | |
110119-103 | H-52 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 1-1/4" | 1/3 | $4,856.67 | Add to Cart Add to RFQ | |
116444-137 | H-53 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 1-1/2" | 1/2 | $5,016.67 | Add to Cart Add to RFQ | |
116456-137 | H-54 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Bronze | 2" | 3/4 | $5,315.00 | Add to Cart Add to RFQ | |
116468-137 | H-63 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 1-1/2" | 1/2 | $7,100.00 | Add to Cart Add to RFQ | |
116480-137 | H-64 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 1-1/2" | 3/4 | $7,480.00 | Add to Cart Add to RFQ | |
116492-137 | H-65 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 1-1/2" | 1 | $8,080.00 | Add to Cart Add to RFQ | |
116504-137 | H-66 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 2" | 3/4 | $8,471.67 | Add to Cart Add to RFQ | |
116516-137 | H-67 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 2" | 1 | $8,775.00 | Add to Cart Add to RFQ | |
116524-137 | H-68 | Bronze Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Bronze | 2" | 1 1/2 | $9,223.33 | Add to Cart Add to RFQ |
Armstrong H-51 to H-68 Bronze-Fitted Inline Circulating Pumps combine a cast-iron body with bronze impellers for durability and corrosion resistance. Designed for efficient, quiet operation, they ensure reliable fluid circulation in heating, cooling, and potable water systems. Ideal for long-lasting performance with minimal maintenance.
Get exactly the size gauge glass you need. No guessing. No mistakes. White Glove boxing and insurance is included in the price!
Use our proprietary one-step glass ordering system! ONLY at BoilerSupplies.com
Part # | Model # | Part Name |
Mechanical Seal Assembly |
Shaft | Impeller | Volute | Flg Size | Motor HP | Price | Qty | |
---|---|---|---|---|---|---|---|---|---|---|---|
116431-132 | H-51 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 1" | 1/4 | $2,240.00 | Add to Cart Add to RFQ | |
116435-132 | H-52 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 1-1/4" | 1/3 | $2,425.00 | Add to Cart Add to RFQ | |
116439-132 | H-53 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 1-1/2" | 1/2 | $2,816.67 | Add to Cart Add to RFQ | |
116451-132 | H-54 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 2" | 3/4 | $3,033.33 | Add to Cart Add to RFQ | |
116463-132 | H-63 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 1-1/2" | 1/2 | $3,465.00 | Add to Cart Add to RFQ | |
116475-132 | H-64 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 1-1/2" | 3/4 | $3,955.00 | Add to Cart Add to RFQ | |
116487-132 | H-65 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 1-1/2" | 1 | $4,663.33 | Add to Cart Add to RFQ | |
116499-132 | H-66 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 2" | 3/4 | $4,885.00 | Add to Cart Add to RFQ | |
116511-132 | H-67 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 2" | 1 | $5,036.67 | Add to Cart Add to RFQ | |
H-68 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 2" | 1 1/2 | $7,226.67 | Add to Cart Add to RFQ | ||
110119-100 | H-51 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 1" | 1/4 | $2,396.67 | Add to Cart Add to RFQ | |
110119-102 | H-52 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 1-1/4" | 1/3 | $2,495.00 | Add to Cart Add to RFQ | |
116443-136 | H-53 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 1-1/2" | 1/2 | $2,695.00 | Add to Cart Add to RFQ | |
116455-136 | H-54 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Non-Ferrous | Cast Iron | 2" | 3/4 | $2,846.67 | Add to Cart Add to RFQ | |
116467-136 | H-63 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 1-1/2" | 1/2 | $3,395.00 | Add to Cart Add to RFQ | |
116479-136 | H-64 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 1-1/2" | 3/4 | $3,726.67 | Add to Cart Add to RFQ | |
116491-136 | H-65 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 1-1/2" | 1 | $4,278.33 | Add to Cart Add to RFQ | |
116503-136 | H-66 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 2" | 3/4 | $4,278.33 | Add to Cart Add to RFQ | |
116515-136 | H-67 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 2" | 1 | $4,628.33 | Add to Cart Add to RFQ | |
116523-136 | H-68 | Iron Body Pump |
Carbon Brass Trim - Ceramic Seat |
Alloy Steel- Copper Sleeve |
Cast Bronze | Cast Iron | 2" | 1 1/2 | $4,890.00 | Add to Cart Add to RFQ |
Items to be returned must be approved by Power Plus International, and may be subjected to a restocking fee
Notice: Due to the uncontrollable metal costs, all prices and delivery times are subject to change on a daily basis.
PPI™ and Power Plus International™, and related marks and logos displayed on the Site, are our trademarks and may not be used in any way without our prior express written permission. Nothing contained on the Site shall be construed as granting, by implication, estoppel or otherwise, any license or right to use any of our marks displayed on the Site without our prior express written permission. All other trademarks not owned by us that appear on this Site are the property of their respective owners.
*NOTE: The products described herein are not manufactured by Patterson-Kelley nor is Power Plus
International in any way associated or affiliated with "PK", Patterson-Kelley, or Harsco Corporation.
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