Sporlan 168190 BQ Body

The Sporlan 168190 BQ Body is a professional-grade, balance-ported thermostatic expansion valve (TEV) component designed for precise refrigerant metering in air conditioning and commercial refrigeration systems. This replaceable cartridge style valve features a 3/8" SAE flare inlet and a 1/2" SAE flare outlet, offering a knife-edge metal-to-metal joint for a reliable, leak-proof seal without the need for additional gaskets. Engineered to handle widely varying operating conditions, the Sporlan BQ series utilizes a balance port design to counteract the influence of high-pressure liquid at the inlet, ensuring stable superheat control even during light load conditions. The internally equalized brass body is highly versatile, allowing technicians to minimize inventory by pairing it with various thermostatic elements and GA, C, or ZP charges. This body is compatible with common refrigerants including R-22, R-134a, R-404A, and R-410A when matched with the appropriate cartridge and element, making it a staple for maintaining HVACR system efficiency.

• Balance Port Technology: Provides consistent superheat control and stable operation across a broad range of head pressures and ambient temperatures.
• Field Serviceable Design: The replaceable cartridge and thermostatic element allow for rapid cleaning, inspection, or capacity changes without removing the body from the line.
• Metal-to-Metal Seal: Sporlan's traditional knife-edge construction ensures a durable, high-strength connection that prevents refrigerant leaks.
• Application Versatility: Ideal for use in refrigerated cases, coolers, freezers, and residential air conditioning units where suction line pressure drop is minimal.
• Durable Brass Construction: High-quality materials offer maximum protection against corrosion and erosion in demanding HVACR environments.

Is an external equalizer required for the Sporlan 168190?
This specific model is internally equalized, meaning it senses evaporator pressure at the valve outlet. It is best suited for systems with low pressure drop through the evaporator. If your system has a significant pressure drop or a refrigerant distributor, an externally equalized body (EBQE) may be required.

Can I use this body with R-410A systems?
Yes, the BQ body is rated for high-pressure refrigerants like R-410A. However, you must ensure that the thermostatic element and the cartridge used are also specifically rated for the higher pressures and properties of R-410A.

How do I adjust the superheat on this valve body?
The BQ body features an adjustable bottom cap. Turning the adjustment stem clockwise increases the spring tension, which increases the superheat. One full turn typically changes the superheat by approximately 3 to 4 degrees Fahrenheit.

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.