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The Lincoln Electric K2166-1 is an industrial-grade Gas Tungsten Arc Welding (GTAW/TIG) torch adapter designed to connect a one-piece, air-cooled PTA-26 series TIG torch to a power source. It functions as a bridge between the 7/8-inch unified power/gas hose fitting of a 26-series torch and the 5/8-inch power and shielding gas delivery studs found on industrial Lincoln power sources.
Features
Unified Gas/Power Footprint: Channels both electrical energy and shielding gas through a single mechanical block to eliminate separate gas lines.
Dual-Function Internal Conduit: Routes raw electrical energy and shielding gas through a single line.
Laminar Shielding Gas Flow: Internal chamber is machined to maintain laminar flow and prevent turbulence that introduces atmospheric contamination.
OEM Tolerance Matching: Features tight thread tolerances to minimize risks of arcing and power losses.
Leak-Free Gas Pass-Through: Machined seating surfaces prevent shielding gas leaks to ensure weld pool integrity.
Hex-Body Configuration: Provides flat surfaces for wrench engagement to allow high torque during installation.
Thermal and Chemical Resistance: Engineered for resistance against thermal stress and surface oxidation during high-temperature operations.
Specifications
Manufacturer: Lincoln Electric
Part Number: K2166-1
UPC: 015082753362
Connection A (Torch Side Intake): 7/8"-14 Female Threaded Connection
Connection B (Machine Side Output): 5/8"-18 RH Male Threaded Connection
Maximum Current Capacity: 320 Amps
Cooling Methodology: Air-Cooled (Gas-Cooled)
Cable Configuration: 1-piece single-cable design
Net Product Weight: 0.20 lbs (0.09 kg)
Gross Shipping Weight: 1.00 lbs (0.45 kg)
Physical Dimensions (H x W x D): 4.0 x 4.0 x 2.0 inches (102 x 102 x 51 mm)
Material Composition: CNC-machined conductive brass alloy
Body Profile: Hexagonal
Country of Origin: United States of America
Regulatory Compliance: California Proposition 65 (Lead awareness for brass alloys)
