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Brass purge valve with 1 inch connections, model 110-405

Legend Valve

Legend Valve air conditioning

SKU CH-6HN3-F4BA8

One-inch brass purge and balancing valve for hydronic and HVAC systems

  • 1" S-464 brass purge valve balances system pressure
  • CXC connection simplifies installation on copper tubing
  • Legend Valve brand ensures reliable HVAC component quality
  • New condition guarantees full factory performance
  • California Prop 65 notice informs safe handling requirements

Valve purpose and fit

The Legend Valve 110-405 is a 1" S-464 CXC purge valve made of brass for hydronic balancing and air removal. It is intended for installers and service technicians working on heating and cooling loops in recreational vehicles and similar systems. Buyers who need a different connection size or a valve without a purge function should look elsewhere.

Behaviour under sustained use

The brass body resists corrosion during continuous circulation of treated water or glycol mixtures. The purge mechanism allows repeated manual venting without degrading the seal. No flow-rate or pressure-drop data is supplied, so system designers must verify compatibility with their own calculations.

Thermals noise and power

The valve operates passively with no electrical supply, so it adds no noise or power draw to the installation. Surface temperature follows the fluid temperature in the loop. California Proposition 65 warnings apply because the product contains a chemical known to the state to cause cancer and reproductive harm.

Highlights

  • 1" S-464 brass purge valve balances system pressure
  • CXC connection simplifies installation on copper tubing
  • Legend Valve brand ensures reliable HVAC component quality
  • New condition guarantees full factory performance
  • California Prop 65 notice informs safe handling requirements

Specifications

BrandLEGEND VALVE

Questions about this item

Does the 1" S-464 brass purge valve generate noticeable heat or noise during continuous RV air-conditioning use?

The valve is a passive brass component with no moving motor or fan, so it produces no operational noise or measurable heat while the system runs.

What existing plumbing connections must my RV already have for this 1" S-464 CXC purge valve to install directly?

It requires a 1-inch copper sweat (CXC) connection on each side to solder into the existing refrigerant or water lines.

Will this 1" S-464 purge valve work with the older brass fittings and refrigerant lines already in my RV?

Yes, the standard 1-inch sweat ends mate with legacy copper tubing of the same diameter used in earlier RV HVAC installations.

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