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About Us
FP 450-80
Level Control Valve
The Model FP 450-80 Level Control Valve is a hydraulically controlled, diaphragm actuated, control valve that shuts at pre-set reservoir high level and fully 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.
Features and Benefits
- 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 & closing ΔP requirement
- External installation
- Easy access to valve
- Easy level setting
- Less wear and tear
- In-line serviceable – Easy maintenance
- Flexible design – Easy addition of features
Typical Applications
Bi-Level Water Towers
The Model FP 450-80 senses the static head of the water level in the tank by means of a high sensitivity pilot. To do so accurately, the sensing tube end must be connected to a “still point” at the bottom of the tank. The drainage pipe
provides this “still point”, a location not influenced by flow velocity as in filling and outflow pipes.
Operation
The Model FP 450-80 Level Control Valve is a hydraulically controlled, diaphragm actuated, control valve that shuts off at pre-set reservoir high level and fully 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.