Danfoss EV220B 50 Normally Closed Solenoid Valve | G 2 | 032U8505

Product Description: The EV220B (032U8505) is the largest model in the standard EV220B brass range, boasting a DN 50 orifice. In the UAE—where large-volume water management is critical for district cooling towers, commercial building main lines, and industrial processing—this valve provides a reliable $K_v$ flow capacity of $40\ m^3/h$. Its “Normally Closed” design ensures a secure shut-off when power is removed. Built to withstand the high-pressure demands of Dubai’s infrastructure, it features a specialized diaphragm design with integrated damping to prevent water hammer in large-bore piping, and a built-in pilot filter to maintain performance even in systems with occasional particulates.

Key Features & Benefits:

• Massive Flow Capacity: With a $K_v$ of $40\ m^3/h$, this 2-inch valve is designed for high-tonnage fluid transfer in UAE industrial and HVAC applications.
• Normally Closed (NC) Security: Ensures the valve remains tightly shut during power loss, providing essential safety for main water supply lines.
• Advanced Water Hammer Damping: Specifically engineered to close gradually, protecting expensive large-diameter UAE piping networks from pressure surges.
• EPDM Sealing (EPD): Optimized for water and neutral liquids at temperatures up to 120°C, making it ideal for the UAE’s hot water and cooling systems.
• Maintenance Friendly: The built-in pilot filter protects the internal mechanism, significantly extending service intervals in dusty Middle Eastern environments.

Technical Specifications:

FAQs:

• Q: Is the 032U8505 suitable for main water lines in Dubai high-rises?
• A: Yes, its high flow rate and water hammer damping make it the industry standard for large-scale water control in UAE commercial towers.
• Q: Does it require a minimum pressure to operate?
• A: Yes, as a servo-operated valve, it requires at least 0.3 bar of differential pressure to open the large DN 50 diaphragm.
• Q: Can this be used for oil in Abu Dhabi refineries?
• A: No, EPDM seals are not compatible with oil. For oil-based media, you must select the FKM (Viton) version of the EV220B series.