Level Control Valve - Series 866-480 for Fire Protection

The Series 866-480 Level Control Valve is a hydraulically controlled, diaphragm actuated control valve that shuts off at a pre-set reservoir full level and opens in response to an approximately one-meter (three foot) level drop, as sensed by the 3-way altitude pilot mounted on the main valve.

Line pressure driven - Independent operation

Bi-Level altitude pilot

  • No float, simple installation
  • On/Off service
  • Suitable for low quality water

Fully supported vulcanized diaphragm

  • Rugged radial seal disk
  • Protected diaphragm

Dynamically restrained actuation

  • Non-slam closing

Balanced rolling diaphragm

  • High flow capacity
  • Very low opening and closing pressure change requirements

External Installation

  • Easy access to valve
  • Easy level setting
  • Less wear and tear

In-line serviceable - Easy maintenance

Flexible design - Easy addition of features


  • Series No: 866-480

Product availability:

  • Canada
  • United States/Mexico
Level Control Valve - Series 866-480 for Fire Protection


  • Series 866 Level Control Submittal



    English - pdf (598 KB)


  • Victaulic Hydraulic Control Solutions for Fire Protection



    English - pdf (5 MB)