NA20646 | NA20646 | Caleffi

**Caleffi NA20646 Automatic Two-Way Valve:** Caleffi's NA20646 valve is an automatic two-way valve designed for use in heating and cooling systems. It features a robust brass body with stainless steel internals for durability and extended service life. Key Features: - Auto-balancing with a dynamic range of 1:10 - Pressure range from 0.5 to 12 bar - Maximum temperature of 230°F (110°C) - Connection sizes from 3/8" to 1" NPT Benefits: - Maintains optimal flow rates in heating and cooling systems - Reduces system noise and vibration caused by imbalances - Protects system components from pressure fluctuations - Improves overall system efficiency Applications: - Hydronic heating systems - Cooling systems - Radiant floor heating systems - Solar heating systems Our HVAC supply store offers the best prices and fast shipping on Caleffi NA20646 valves. Our knowledgeable technical team is also available to assist with any installation or application questions. Shop now for reliable and high-quality HVAC products from Our HVAC supply store!