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Their History

Founded in 1874 by Joseph Watts, Watts made its reputation by “Setting The Standard in Valve Technology.” During its early days, Watts manufactured pressure reducing valves to regulate steam and relief valves to ensure safe operation of water heaters and boilers.

In the 1900’s, Watts introduced the revolutionary combination temperature and pressure (T&P) relief valve, a protection device for use on hot water supply tank systems. These T&P valves prevented dangerous hot water heater explosions and continue to be an integral part of today’s water heating systems.


In the 1970’s, Watts was instrumental in the promotion of backflow prevention devices to prevent the backward flow of contaminated water from entering into the potable water supply. Watts continues to lead the backflow prevention market today.

Watts Today

Today, Watts is a subsidiary of Watts Water Technologies, Inc. with operations in North America, Europe and Asia. Watts designs, manufactures and sells an extensive line of flow control products for the water quality, residential plumbing & heating, commercial and OEM markets.  Watts core product lines include:

  • Water Safety & Flow Control Products
  • Backflow Prevention Products
  • Water Quality & Conditioning Products
  • Specification Drainage Products
  • Brass & Tubular Products
  • Control Valve Products
  • Potable PEX Plumbing Products
  • Quick-Connect Push Fit Solutions
  • Custom OEM Products

Contact Watts

For further assistance contact Watts today or visit their web site

United States & International:

815 Chestnut Street
North Andover, MA 01845
Phone: 978-688-1811


5435 North Service Road
Burlington, Ontario, Canada L7L 5H7
Phone: 905-332-4090

Product Catalog

Technical Articles

Watts Valves Secure Desert Water Supply (Valves) Prevented overtopping of tanks and the wasting of water, as well as prevent un-checked flow from the high tank to lower tanks in the even of a major water break... (View Full Article)
OneFlow® Goes to War with Ultra-Hard Water (Environmental Equipment) Eliminate use of chemical additives, reduce water discharge and wastewater and use a salt-free system if possible. (View Full Article)

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