NA20648 | NA20648 | Caleffi

**Caleffi NA20648 Pressure Differential Switch** The Caleffi NA20648 Pressure Differential Switch is designed to monitor and control differential pressure in hydronic systems. It features a rugged construction with a brass body and stainless steel diaphragm, ensuring durability and reliability in demanding operating conditions. This switch provides precise control over differential pressure, enabling system optimization and energy efficiency. The NA20648 offers adjustable setpoints and a wide differential pressure range, making it suitable for various applications. It can be used to maintain constant pressure, prevent cavitation in pumps, and protect equipment from overpressure. Its compact size and easy-to-install design allow for seamless integration into existing systems. **Key Features:** * Brass body for corrosion resistance * Stainless steel diaphragm for accuracy and durability * Adjustable setpoints for customized control * Wide differential pressure range * Suitable for hydronic systems * Easy to install and maintain **Applications:** * Maintaining constant pressure in hydronic systems * Preventing cavitation in pumps * Protecting equipment from overpressure * Regulating differential pressure for optimal system performance Shop our HVAC supply store for the best prices and fast shipping on Caleffi pressure differential switches!