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Brass tempering valve with compression fittings, 3/8 inch inlets and outlets, 3 1/4 inch height

Acorn

Acorn ST70CP-38-BCT Tempering Valve Brass 3/8 Inlet equipment

SKU CH-4C00-2KDJY

Brass tempering valve blends hot and cold water to 85–115 °F at 4 gpm for lavatory use, with 3/8″ compression connections and ASSE 1070 certification

  • MaterialHAWA
  • Weight1.14
  • Consistent mixed-water temperature for lavatories backed by ASSE 1070 and CSA B 125.3 compliance
  • Safe outlet range of 85 to 115 °F prevents scalding with hot supply up to 180 °F
  • Handles supply pressure up to 125 psi for reliable commercial performance
  • Brass body with compression ends fits 3/8 in piping without soldering
  • Compact 3 1/4 in height suits tight lavatory installations

Acorn ST70CP-38-BCT Tempering Valve

This brass tempering valve blends hot and cold water to a safe outlet temperature between 85 and 115 degrees Fahrenheit. It is designed for lavatory installations where scald protection is required. The unit meets ASSE 1070 and CSA B 125.3 standards for point-of-use mixing valves.

Brass body with compression connections

The valve body is constructed from brass for corrosion resistance and durability in plumbing systems. Both inlet and outlet ports use 3/8 inch compression fittings, allowing direct connection to copper tubing without soldering. The compact 3 1/4 inch height and width fit within tight cabinet spaces.

Replaces non-thermostatic fittings

This valve upgrades basic supply stops by adding automatic temperature regulation at the fixture. The upgrade is worth it when codes require ASSE 1070 compliance or when inlet temperatures vary between 35 to 80 degrees cold and 120 to 180 degrees hot. It does not suit applications needing higher flow than 4 gpm or pressures above 125 psi.

Highlights

  • Consistent mixed-water temperature for lavatories backed by ASSE 1070 and CSA B 125.3 compliance
  • Safe outlet range of 85 to 115 °F prevents scalding with hot supply up to 180 °F
  • Handles supply pressure up to 125 psi for reliable commercial performance
  • Brass body with compression ends fits 3/8 in piping without soldering
  • Compact 3 1/4 in height suits tight lavatory installations

Specifications

MaterialHAWA
Weight1.14
BrandACORN

Questions about this item

What temperature range does the ASSE 1070 tempering valve deliver?

The valve blends hot and cold water to a range of 85 to 115 degrees Fahrenheit for lavatory use.

What pipe size and connection type does the 3/8-inch inlet require?

It uses a 3/8-inch compression fitting on both inlet and outlet for direct copper tube connection.

How is the valve oriented during installation, and what step is often missed?

Mount it with the body upright; the step often missed is verifying hot supply is 120 to 180 degrees Fahrenheit and cold supply is 35 to 80 degrees Fahrenheit before final adjustment.

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