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Stainless steel 10-plate heat exchanger with 3/4 inch connections

Legend Valve

Legend Valve 807-031 Heat Exchanger HX100B-10 10 Plate 40M BTU/H 3/4

SKU CH-59DP-VR83C

A 10-plate heat exchanger rated at 40M BTU/H with 3/4-inch connections for HVAC systems

  • 10-plate design delivers 40M BTU/H heating capacity
  • 3/4-inch connections simplify installation in RV systems
  • Legend Valve construction ensures reliable heat transfer performance
  • Compact plate exchanger fits tight spaces in automotive HVAC
  • Prop 65 compliance noted for California safety awareness

Heat Exchanger for Hydronic Systems

The Legend Valve 807-031 HX100B-10 is a 10-plate brazed heat exchanger rated at 40M BTU/H with 3/4-inch connections. It transfers thermal energy between two fluid circuits in hydronic heating, snow-melt or domestic hot-water installations. The unit arrives new and carries a California Proposition 65 notice for listed chemicals.

Sustained Thermal Transfer

With ten stainless-steel plates the exchanger maintains its 40M BTU/H rating during continuous circulation rather than only during short demand spikes. Counter-flow plate geometry keeps approach temperatures tight so boilers, heat pumps or solar loops operate at steady efficiency. The brazed construction resists internal fouling when system water chemistry is properly maintained.

Installation Verification

Confirm that your piping provides 3/4-inch NPT or sweat connections matching the exchanger ports. Verify that system pressure and temperature limits fall within the plate design envelope before mounting. Plan for isolation valves and strainers on both circuits to allow cleaning without draining the entire loop.

Highlights

  • 10-plate design delivers 40M BTU/H heating capacity
  • 3/4-inch connections simplify installation in RV systems
  • Legend Valve construction ensures reliable heat transfer performance
  • Compact plate exchanger fits tight spaces in automotive HVAC
  • Prop 65 compliance noted for California safety awareness

Specifications

BrandLEGEND VALVE

Questions about this item

How much heat does the 40M BTU/H exchanger move when it runs continuously?

The unit is rated at 40 million BTU per hour across its ten plates, so sustained output matches that figure.

What piping does the 3/4 inch connection require on my system?

You need 3/4 inch supply and return lines with compatible fittings to match the exchanger ports.

Will the 807-031 model fit alongside my existing RV furnace without modification?

It mounts in-line on 3/4 inch plumbing, so it connects to standard RV hydronic loops without adapter changes.

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