The Danfoss 009G0291 BML22S is a manual shut off valve engineered for refrigeration and air conditioning systems, specifically designed for liquid, suction, and hot gas lines. Featuring a 7/8" ODF solder connection, this straight-way valve utilizes a durable brass body and a triple-diaphragm seal to ensure zero refrigerant leakage at the stem. It is fully compatible with HCFC, HFC, and HC refrigerants, including R22, R134a, and R404A. This model serves as a direct drop-in replacement for the 009G029100, maintaining a maximum working pressure of 406 psig and a wide temperature operating range from -67°F to 212°F. For service technicians, the BML 22s valve provides a reliable isolation point during maintenance, offering a high Cv value for minimal pressure drop across the circuit. The handwheel design allows for precise manual refrigerant flow control and positive shut-off in critical HVACR applications. Key Benefits Hermetic Seal Integrity: The stainless steel diaphragm prevents refrigerant loss, eliminating the need for gland nut adjustments common in older valves. High Flow Capacity: Optimized internal geometry ensures maximum HVAC valve performance with negligible pressure drop. Extended Durability: Constructed with a forged brass body and reinforced internal components to withstand thermal cycling and vibration. Universal Compatibility: Approved for use with all standard fluorinated refrigerants and their original synthetic lubricants. Common Questions Is the Danfoss BML22S compatible with modern R410A systems? The BML22S is rated for a maximum working pressure of 28 bar (406 psig), making it suitable for many standard refrigeration applications but generally below the required pressure rating for R410A high-side liquid lines. What is the proper brazing procedure for these 7/8" ODF connections? Technicians should use a heat sink or wet rag on the valve body during installation to protect the internal diaphragm and seals from excessive heat transfer during the brazing of the solder connection. Can this valve be used as a replacement for the Danfoss 009G029100? Yes, the 009G0291 is the direct technical successor to the 009G029100, maintaining identical dimensions and flow characteristics for seamless field replacement. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
