Danfoss SFA 15 Safety Relief Valve | 21 Bar, G Connection | 148F3221

Product Description:

The Danfoss SFA 15 (148F3221) is a critical safety component engineered for large-scale industrial cooling and process plants across the UAE. This valve is designed to open at a set pressure of 21 bar, providing a vital fail-safe against overpressure situations that could lead to catastrophic equipment failure. The SFA series is renowned for its “back-pressure independent” design, ensuring that the opening pressure remains accurate even if there is pressure in the discharge line—a crucial feature for complex UAE industrial installations. Built to handle a wide variety of refrigerants including Ammonia ($NH_3$), HFCs, and HCFCs, it features a robust G-threaded connection for secure mounting. Its stainless steel spring and specialized internal seals are designed to remain reliable despite the intense heat and corrosive atmospheric conditions typical of Dubai’s industrial zones.

Key Features & Benefits:

• Fixed 21 Bar Set Pressure: Provides precise and reliable overpressure protection for UAE systems rated for 21 bar operation.
• Back-Pressure Independent: Ensures the valve opens exactly at the set point, regardless of fluctuations in the discharge piping pressure.
• Versatile Refrigerant Use: Fully compatible with Ammonia and various synthetic refrigerants, making it a standard choice for Dubai’s cold storage facilities.
• Corrosion Resistant: Engineered with high-quality materials to withstand the saline and humid environment of the UAE coast.
• Reliable Re-seating: Designed to close tightly after pressure relief, preventing costly refrigerant loss in UAE industrial plants.

Technical Specifications:

FAQs:

• Q: Can the set pressure of the SFA 15 (148F3221) be adjusted in the UAE field?
• A: No, these valves are factory-set and sealed at 21 bar. Any attempt to adjust them in the field will void the safety certification and warranty in the UAE.
• Q: How often should the SFA 15 be replaced or tested in Dubai?
• A: According to UAE safety standards and Danfoss recommendations, safety valves should typically be replaced or recertified every 2 to 5 years, depending on local regulations and the refrigerant used.
• Q: Is this valve suitable for $CO_2$ systems in the UAE?
• A: While SFA valves are robust, always check the specific $CO_2$ subcritical or transcritical pressure requirements; for 21 bar applications, the 148F3221 is technically compatible if the pressure rating matches.