The Sporlan 168308 BQC-C White Cartridge is a critical replacement component for Sporlan BQ series thermostatic expansion valves, specifically engineered for high-performance balanced port TXV applications. This Size C cartridge, distinguished by its white color code, allows technicians to effectively manage refrigerant flow control across varying head pressures and evaporator loads. By utilizing a balanced port design, this 168308 cartridge compensates for the unbalanced forces typically found in conventional valves, ensuring consistent superheat control and preventing liquid floodback in both commercial refrigeration and air conditioning systems. The inclusion of an I.D. tag ensures immediate field verification of the valve’s capacity, facilitating faster HVAC system maintenance. Built for durability in demanding environments, this brass-bodied revolving cartridge is compatible with a wide range of common refrigerants including R-22, R-404A, R-410A, and R-407C, provided it is matched with the correct theromstatic element. For veteran contractors, the BQC-C cartridge serves as a reliable solution for restoring precise expansion valve performance without needing to replace the entire valve body. Key Benefits Balanced Port Design: Eliminates the effects of changing head pressures, providing stable performance across a broad range of operating conditions. Color-Coded Identification: The white cartridge indicator and provided I.D. tag ensure error-free installation and quick capacity identification for future service calls. Field Serviceable: Simplifies repairs by allowing for cartridge replacement rather than full valve removal, reducing labor time and system downtime. Broad Compatibility: Optimizes thermal expansion valve performance in systems ranging from walk-in coolers to heat pump duty. Common Questions How do I verify if the BQC-C is the correct size for my application? The "C" size designation refers to a specific nominal capacity range depending on the refrigerant used (e.g., approximately 3.25 to 5.5 tons for R-22). Always cross-reference the Sporlan capacity chart and the color-coded white top before installation. Does this cartridge include the thermostatic element? No, the 168308 BQC-C is a cartridge-only kit. For a complete valve assembly, you must pair it with the appropriate Sporlan body and thermostatic element (such as an KT-43 series). Can this be used in an externally equalized valve? Yes, the cartridge is compatible with both internal and externally equalized Sporlan BQ series valve bodies, as the equalization method is determined by the valve body, not the cartridge itself. 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.
