Electronic Expansion Valve Opener Magnetic Rotation Test Tool, 17.35mm Max Diameter Blue Aluminum EVT Valve Core Tester, Pre-Welding Inspection Tool for Air Conditioner Refrigeration Repair

Cut Costly Unnecessary Valve Replacement & Welding Work

When your air conditioner’s electronic expansion valve (EEV) gets stuck, most technicians rush straight into full valve replacement—a lengthy, expensive process including refrigerant recovery, pipe welding, vacuum pumping and recharging fluorine. This magnetic rotation valve opener lets you manually test whether the valve core is movable before welding, ruling out simple jams without tearing down the entire refrigeration circuit. Save hours of labor, expensive refrigerant and new valve parts for every AC repair job.

Magnetic Rotation Manual Test Mechanism

This specialty repair tool uses strong built-in magnetic force to directly drive the internal valve core after removing the original EEV coil. Simply slip the blue aluminum sleeve over the valve body, then twist the outer shell clockwise or counterclockwise to manually actuate the valve spool. You can instantly judge if the expansion valve core is seized or just a coil failure, avoiding blind disassembly and welding for fully functional valves.

Precision 17.35mm Inner Diameter Universal Fit

Engineered with a ≤17.35mm inner bore, the sleeve perfectly matches the outer diameter of mainstream Shunguan and standard electronic expansion valve bodies widely used in residential and commercial air conditioners, heat pumps and refrigeration units. The tight tolerance aluminum sleeve fits snugly without wobble during rotation testing, delivering stable magnetic transmission for accurate valve core diagnosis.

Durable CNC Blue Anodized Aluminum Construction

The entire tool body is made of lightweight solid aluminum with bright blue anodized anti-corrosion finish:

• Wear-resistant surface resists scratches, oil stains and refrigeration fluid corrosion from workshop environments
• Rigid one-piece machined structure maintains round shape after thousands of clamping & rotation cycles
• Compact ring-style design fits easily into technician tool bags, no bulky extra attachments required

3-Step Fast Operation, Zero Complex Modification

1. Remove the original electromagnetic coil from the top of the electronic expansion valve
2. Slide this magnetic opener sleeve fully over the exposed valve body
3. Rotate the outer aluminum housing clockwise / counterclockwise to manually drive the internal valve core and test mobility No cutting, welding or refrigerant discharge needed for preliminary fault screening—complete pre-welding inspection in under one minute.

Essential Refrigeration Workshop Troubleshooting Accessory

Perfect for professional HVAC repair shops, appliance service technicians and refrigeration maintenance teams:

• Quickly distinguish between faulty coil damage vs seized valve core failures
• Eliminate wasteful full valve replacement when only the coil needs swapping
• Reduce refrigerant loss, welding material consumption and customer repair downtime
• Compatible with most split AC units, cabinet air conditioners, heat pump water heaters and cold storage electronic expansion valves