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F127SS Watts

Cast Iron Process Steam Pressure Regulators, Flanged Connections

Series F127SS Process Steam Pressure Regulators are used in commercial, industrial, and institutional applications to regulate steam pressure in main line and large capacity process services. They feature a cast iron body with flanged inlet and outlet connections, single seat, and diaphragm. Series F127SS has a stainless steel disc and is designed for initial pressures up to 125psi (8.6 bar).


  • Single seated, direct acting, diaphragm type regulator
  • Stainless steel valve disc
  • Cast iron body with flanged connections
  • Designed for convenient maintenance so regulator service can be quickly restored

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Approval Information

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