Mueller Refrigeration aq17859 Cyclemaster Ball Valve Standard with Access Port 1/4 Inch

Product Description

The Mueller Refrigeration AQ17859 is a Cyclemaster ball valve designed for refrigeration and HVAC systems that require reliable shutoff with convenient service access. This standard ball valve features a built-in access port, giving HVAC technicians a direct point for system charging, pressure testing, and refrigerant management without adding extra fittings to the line. The 1/4 inch connection size makes it a common choice for smaller refrigerant circuits and service lines. With a Cv flow coefficient of 1.00 and a 0.50 inch port, this valve delivers consistent flow performance suited for tight system designs. The maximum allowable pressure rating of 775 psi makes it capable of handling high-pressure refrigerants used in commercial and residential HVAC equipment. Mueller Refrigeration is a trusted name in refrigeration components, and the Cyclemaster series is widely used by service technicians and contractors who need dependable brass ball valve performance in the field. The drilled and tapped feature is included as standard, allowing for direct access port installation without additional machining. The operating temperature range spans from -40 degrees Fahrenheit to 300 degrees Fahrenheit, covering the full working range of most refrigeration and air conditioning systems. This valve is well suited for use with R-410A, R-22, R-134a, and other common refrigerants. The compatible seal cap kit is the A 17842, which should be kept on hand for maintenance and resealing during service calls. Weighing just 0.52 pounds, this compact valve is easy to handle during installation in tight equipment spaces. HVAC technicians, refrigeration contractors, and mechanical service professionals will find this valve a practical addition to any service or installation job.

• Built-in access port allows direct refrigerant charging and pressure testing without extra fittings
• Rated to 775 psi maximum allowable pressure for use with high-pressure refrigerants
• Wide operating temperature range from -40 degrees Fahrenheit to 300 degrees Fahrenheit suits most HVAC and refrigeration applications

Product Highlights

The Mueller Refrigeration AQ17859 Cyclemaster ball valve combines reliable shutoff performance with a standard access port and drilled and tapped feature, making it a practical service valve for HVAC and refrigeration technicians working with 1/4 inch refrigerant lines.

Product Information

Standard Information

• Brand: MUELLER REFRIGERATION
• Manufacturer Part Number: aq17859

Technical Specifications

• Connection Size: 1/4 inch
• Cv: 1.00
• Kv: 1
• Port Size: 0.50 inches
• Maximum Allowable Pressure: 775 psi (53 bar)
• Operating Temperature Minimum: -40 degrees Fahrenheit (-40 degrees Celsius)
• Operating Temperature Maximum: 300 degrees Fahrenheit (149 degrees Celsius)
• Weight: 0.52 pounds (0.23 kg)
• Seal Cap Kit: A 17842
• Standard Feature: Drilled and tapped access port included