48R491 - Walter Surfox Replacement Fluid Hose 4mm x 6mm - 10.5m Length

Technical Specifications: Walter 48R491 Fluid Delivery Tube

The Walter 48R491 is a specialized fluid delivery tube engineered for the harsh chemical environment of electrochemical weld cleaning. This component is critical for the safe and consistent transfer of Surfox electrolyte solutions (such as Surfox-T or Surfox-G) from the reservoir to the carbon fiber brush or pad at the wand tip. Failure of the fluid line due to cracking, hardening, or kinking can lead to hazardous leaks of acidic solutions and interruption of the passivation process. This replacement tube addresses these issues with industrial-grade materials.

Dimensional Precision: The tube features a 4mm Inner Diameter (ID) and a 6mm Outer Diameter (OD). These precise dimensions are necessary to ensure a leak-proof seal with the push-to-connect fittings or barb fittings found on Surfox units. The wall thickness provides sufficient rigidity to prevent collapsing under suction or bending, while remaining flexible enough to be maneuvered easily by the welder. The 10.5-meter length is particularly advantageous for field work or large shop bays, minimizing the need to drag the power source unit across the floor.

Chemical Resistance: Standard pneumatic tubing often degrades when exposed to the phosphoric acid-based solutions used in weld cleaning. The 48R491 is manufactured from a polymer specifically selected for its resistance to these electrolytes, preventing premature embrittlement and discoloration. This ensures a consistent flow rate, which is vital for cooling the wand tip and ensuring proper electrochemical action on the stainless steel surface. When installing, ensure all connections are seated fully to maintain system pressure and safety.

Installation and Compatibility

This tube is compatible with various models in the Surfox lineup that utilize the standard 4mm/6mm fluid path. It is supplied as a single continuous 10.5m length, which can be used as a long-reach extension or cut to shorter lengths if multiple shorter replacements are required for different units.