WATTS® SD2 Dual Check Valve, 3/8 in, SAE Male NPT, Stainless Steel

890565 MFG #: 0061654
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WATTS® Dual Check Valve, SD2 Series, 3/8 in Nominal Size, SAE Male NPT, 200 psi, 110 deg F, Stainless Steel Body, 3 in L

The Watts SD2 is a dual check designed for the protection of the water supply from carbon dioxide gas and carbonated water. These substances can flow from post-mix beverage systems and are very acidic. If the acidic water comes in contact with copper tubing or copper pipe, it will cause the leaching of copper salts into the water supply. The dissolved copper if ingested can cause nausea, abdominal pain, and in some cases vomiting. The SD-2 prevents the reverse flow of potentially contaminated water into the potable water supply due to back pressure backflow and is used for continuous or intermittent pressure conditions. The Watts SD-2 is recommended for use on Post-Mix Carbonated Beverage Equipment and dispensing equipment for tea and coffee.

  • Features
  • All rubber compounds comply with FDA food additive regulations
  • Streamlined body design minimizes pressure loss and cavitation
  • Endurance tested for more than 500,000 pumping cycle
  • Shock tested for more than 100,000 pumping cycle
  • Certified to ANSI/NSF standard 18, manual food and beverage dispensing equipment
  • ASSE 1032 approved dual check valve
  • Post-Mix carbonated beverage equipment and dispensing equipment for tea and coffee
  • The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight
  • Standard/Approvals: ANSI/NSF 18, ASSE 1032, CSA B64.3
  • WARRANTY: Limited