2064115 - ESAB Silicone O-Ring Seal - Size 007 - 70A Durometer

Technical Specification: ESAB 2064115 Silicone O-Ring

The ESAB 2064115 is a precision-engineered sealing component designed to meet the rigorous demands of industrial welding equipment. This O-ring is manufactured from high-quality Silicone (VMQ), a material selected specifically for its exceptional thermal stability and resistance to compression set. In the context of welding machinery and torches, seals are frequently exposed to fluctuating temperatures, ranging from ambient storage conditions to the intense heat generated near the arc or within coolant systems. Silicone maintains its elastomeric properties across a wide temperature spectrum, typically from -65°F to over 400°F (-54°C to 204°C), ensuring that the seal does not become brittle or crack under thermal cycling.

Mechanically, this O-ring features a Durometer hardness of 70 Shore A (70A). This is the industry-standard hardness for most static and dynamic sealing applications, offering a perfect compromise between conformability to mating surfaces and resistance to extrusion under pressure. The dimensions of this specific part are critical for proper fitment: it features an Inner Diameter (ID) of 0.145 inches and a Cross-Sectional (CS) width of 0.070 inches. These dimensions correspond to the standard AS568-007 size, making it a versatile component for various pneumatic and fluid connections within ESAB systems.

The use of silicone also provides excellent resistance to ozone, ultraviolet light, and general weathering, which is beneficial for equipment used in outdoor or shop environments where exposure to UV radiation is common. While silicone is not recommended for dynamic sealing in high-friction applications due to its lower abrasion resistance compared to Nitrile or Viton, it is the superior choice for static seals in high-temperature zones, such as gas diffusers, back caps, or internal machine gas plumbing. Ensuring the correct material composition is vital for maintaining the safety and efficiency of the shielding gas delivery system.