- Completely assembled to simplify installation
- Constant pressure at varying flows
- Flows up to 100GPM
- Pressure boost to 65 PSI
In cases where falling city pressure has made the main booster system incapable of maintaining proper pressure on upper floors of high-rise buildings, such as apartment houses, office buildings, hotels and motels.
Multiple Installations on Alternate Floors
Pressurizers can provide incremental pressurization for blocks of floors. Eliminates the need for a large central booster system. Ideal for modular building techniques.
Hospital/Research Facilities
Ensure constant pressure at critical points of use such as laser equipment and lab cooling systems.
Industrial Point of Use
Provide required pressure of process lines at point of use. Hydraulic pressure, cooling and flushing.
Jockey Pump Applications
Provides off peak/leak loss pressurization on fire systems, to keep large fire pumps from short cycles.
Off Peak Use
To provide minimum pressure during periods of low usage (weekends) and keep main booster system off.
Thrush pressurizers are pressure booster packages that increase system pressure and maintain the flow necessary to meet changing system demands. The constant pressure feature is unique and sets Thrush Pressurizers apart from other booster packages. Constant pressure on the top floor of a building ensures not only adequate flow but also, the efficient operation of water use fixtures and appliances such as flush valves, washdown bowls, dishwashers, washing machines and shower heads. Pressure boosting, without constant control of pressure, will cause demand pressure fluctuations. This will result in either too little or too much operating pressure at critical fixtures and appliances resulting in improper operation of the devices.
2. Pressure regulation is controlled with the unique Boostrol valve which regulates and maintains a constant pressure regardless of fluctuating supply pressure or changing flow. The Boostrol valve also provides other services. It is field adjustable to meet the application, and is a check valve that prevents water from flowing back into the city supply and controls minimum run time for the pump. This assures that whenever system demand requires the pump to start it will run for a minimum of three minutes no matter how short the demand is.
3. Water storage is contained in a pre-pressurized diaphragm-type hydropneumatic storage vessel which provides a pressurized reservoir of water for peak load and minimum usage. This keeps the pump from starting for small infrequent demands.
4. Operation of the Pressurizer is controlled with a pump pressure switch set with a 20 psi differential system that starts at low end and shuts down at high end. The PB 60, 75 and 100 Models have a 5 psi minimum low suction pressure switch to prevent negative pressure draw on city mains.
