The Model FP 450-66 Level Control Valve with Bi-Level Vertical Float is a hydraulically controlled, diaphragm actuated control valve that controls reservoir filling in response to a hydraulic on/off float pressure commands. The Valve opens at pre-set low level and shuts at pre-set high level.

Features and Benefits

• Line pressure driven – Independent operation
• Bi-level hydraulic float control
• 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 pressure requirement
• External installation
• Easy access to valve & float
• Easy level setting
• Less wear and tear
• In-line serviceable – Easy maintenance
• Flexible design – Easy addition of features

Typical Applications

• Rooftop Reservoirs
• Rooftop reservoir level control is attained by electric control of the basement pumps according to reservoir level. As overflow of a rooftop reservoir can cause costly damage, hydraulic backup protection is recommended.
• The Model FP 450-66 is suited to this function. When open, it presents minimal interference, but when needed, it shuts off securely.
• To prioritize pressure to upper floor consumers or fire protection system, install the Model FP 430-UF Pressure Sustaining Valve upstream from the Model FP 450-66.

Operation

The Model FP 450-66 Level Control Valve with Bi-Level Vertical Float is a hydraulically controlled, diaphragm actuated control valve that controls reservoir filling in response to a hydraulic on/off float pressure command. The valve opens at pre-set low level and shuts off at pre-set high level.