Presflo

Presflo is a brand name historically associated with pressure-sensitive flow controls, primarily used in plumbing and heating systems. These devices are designed to maintain a consistent flow rate of water or other fluids, regardless of fluctuations in inlet pressure.

In residential and commercial applications, Presflo units were often employed to protect pumps from running dry, to regulate water pressure for consistent shower performance, and to ensure proper operation of appliances like washing machines and dishwashers. The core function is to limit the flow rate when the pressure exceeds a pre-set threshold, preventing excessive water usage and potential damage to equipment.

Although the term "Presflo" is frequently used generically to refer to any pressure-sensitive flow control valve, it is important to note that it originates as a specific brand. The current market features a variety of similar products from numerous manufacturers. The working mechanism generally involves a spring-loaded diaphragm or piston that restricts the flow path as the inlet pressure increases.

Key characteristics of pressure-sensitive flow controls, including those previously marketed under the Presflo name, include:

• Automatic Regulation: Adjust flow rate based on pressure variations.
• Pre-set Limits: Maintain a specific flow rate below a predetermined pressure level.
• Pump Protection: Prevents pumps from operating without sufficient water supply.
• Consistent Performance: Ensures predictable flow to connected appliances.

While the original Presflo product may no longer be readily available under that exact brand, the underlying technology and its applications remain relevant in modern plumbing and heating systems. Comparable pressure-sensitive flow controls continue to be widely utilized for similar purposes.