Skip to Main Content

LFF127-1 Watts

One-Way Flow Altitude Valve

Series LFF127-1, LFF1127-1 One Way Flow Altitude Valve is designed to open, allowing flow into a reservoir or elevated storage tank (tank fill), and close drip tight when high water level is achieved. It controls water level by remotely sensing static tank head pressure through a field installed sensing line, and opens when the water level is below the adjustable setpoint and closes drip tight when the level is above the adjustable setpoint.


  • Allows flow into a reservoir or elevated storage tank
  • Simplified and efficient design is easy and economical to maintain
  • Water level is controlled by a field installed sensing line
  • Body and cover are constructed of strong and durable ductile iron (ASTM A536)

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific LFF127-1