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Brass mixing valve trap with sweat inlet and outlet connections

Watts

Watts 1/2 LF70A-F Mixing Valve Trap

SKU CH-GEGR-CQ64C MPN 1/2

Lead-free brass mixing valve blends hot and cold water to 120–160 °F at 5.5 gpm with 1/2 in sweat connections

  • Product typeDrain Components
  • Lead-free brass body meets potable-water standards
  • 5 gpm flow at 10 psi pressure drop supplies strong hot-water delivery
  • Adjustable 120 °F to 160 °F range sets safe outlet temperature
  • 150 psi maximum pressure rating handles typical residential systems
  • Sweat 1/2 in connections suit standard copper piping

Lead-Free Mixing Valve for Hot Water Systems

The Watts LF70A-F mixing valve blends hot and cold water to a safe delivery temperature. It is built from lead-free brass with sweat inlet and outlet connections sized at 1/2 in. The valve suits residential and light commercial plumbing where temperature control at the point of use is required.

Replaces Fixed-Temperature Valves When Adjustable

This unit replaces non-adjustable or older brass valves that cannot meet current lead-free standards. The upgrade is worth it when the installation demands a field-adjustable range between 120 and 160 degrees F and a maximum working pressure of 150 psi. It is not for systems that require a higher flow capacity than 5.5 gpm at 10 psi or a different connection type.

Maintains Stable Output During Continuous Draw

Under sustained demand the valve holds the set temperature within its rated range without hunting. The brass body resists dezincification and scale build-up during long service periods. It is not for applications where the supply pressure regularly exceeds 150 psi or where a higher sustained flow rate is essential.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $149.99
Pricier than about 82% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameWatts
Model name1/2 LF70A-F
Product typeDrain Components

Questions about this item

How much clearance do the 3 11/16 in height and 2 1/32 in width need behind the wall?

Allow at least 3 11/16 inches vertically and 2 1/32 inches horizontally for the brass body, plus room for sweat fittings on each 1/2 in inlet and outlet.

What is the most common mistake when sweat-soldering the 1/2 in connections?

Overheating the valve body can damage internal seals; apply heat to the copper tubing first and use a heat shield to protect the brass.

How often should the internal components be checked given the 120 to 160 °F range and 150 psi rating?

Inspect annually for mineral buildup or seat wear; high temperatures and pressure accelerate scale formation that affects the 5.5 gpm flow accuracy.

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