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  • 110119LF-101 Armstrong H-51 All Bronze Pump w/ 1/4 hp

110119LF-101 Armstrong H-51 All Bronze Pump w/ 1/4 hp 3PH

This Item Usually Ships The Same Day!
Calculated at checkout

Product Description

110119LF-101 Armstrong H-51 All Bronze Pump w/ 1/4 hp 3 Phase and 1" Flange Size.


Armstrong Series S & H in-line circulators are suitable for applications such as hydronics heating and cooling, domestic water systems, multi-stage zoning and general industrial service. Both models are available in a wide range of sizes to match the performance requirements of any of these applications. 110119LF-101 Armstrong H-51 All Bronze Pump w/ 1/4 hp are durable and trusted products that have been used by hvac professionals for decades. Besides the existing Sleeve bearing design, Armstrong now has introduced the ‘Maintenance free’ design which has permanently lubricated ball bearings and require no maintenance at all.


  • Standard three-piece design
  • Radially-split body: Can be left in-line while servicing pump, eliminating disconnecting of pipes
  • Oversized shaft: Made from special alloy steel
  • Centrifugal impeller: Ensures maximum water delivery in the HVAC system
  • Positive mechanical seal: ARMseal construction ensures many years of noise-free, trouble-free service
  • Modular construction: Unique shaft and bearing module fits for ease of serviceability and reduced inventory costs

This Item Usually Ships Same Day!

Product Videos

Armstrong Seal Bearing Assembly Replacement 09:18

3 piece circulator seal bearing replacement featuring the maintenance free upgrade exclusively available from Armstrong.

  • Armstrong Seal...
    3 piece circulator seal bearing replacement featuring the main...

Warranty Information

Warranty: Quoted prices include standard factory warranties. Warranty requires install, start-up and operation as per the manufacturers IOM.

Job Site Assistance: By Others

Start-Up: By Others

Commissioning: By Others: These services, if a project requires start up, they are responsibility of contractor or commissioning agent. Owner training assistance, as outlined in any equipment specifications the responsible of the commissioning agent.

Clarifications & Exclusions

'ALTERNATES' are offered for consideration and will always be subject to the engineer's and owners approval. Excludes any seismic calculations or supports, coatings other than factory standard.

Terms: prices are quoted are "each" (unless stated otherwise) and FOB point of origin with no freight allowed freight ships via common ground carrier, and inside continental US Only - any special shipping requirements to be responsibility of purchaser. We offer all prices less tax, with a validity of 30 days from the date quoted and all sales are final. Once items have shipped and left the warehouse National Pump Supply is not responsible for any damage caused during the shipping process. You must contact the shipper directly and file a claim with the shipping company.

Lead Time: All prices offered are based on standard factory lead times (or) as stated within quotation. Expedited shipments may be available at an additional charge. Contact your Sales Engineer for the ETA of any specific equipment on any order or quotation.

Product Reviews

  1. Fast Delivery Great Price

    Posted by Tom Langely on 9th Jul 2016

    I called late on Wednesday and we needed this the next day and we got bright and early! Great Service

  2. good product, easy install

    Posted by Lance Dreyver on 16th Jun 2016

    Thanks again for the great deal and fast delivery on this pump- it works great,.and is much quiter than the older one,.You'resaved in my "Preferred Vendors" file!