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97W33 - ESAB 97W33 Buna-N O-Ring Replacement Seal

Packaging: pack of 1
$5.89/EA $3.55/pack of 1 only $3.55/EASave 40%

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SKU: ESB97W33 Category:

OVERVIEW

Precision Sealing with ESAB 97W33 Buna-N O-Rings

The ESAB 97W33 O-Ring is a critical component designed for maintenance and repair within the welding and industrial sectors. Engineered from premium Buna-N (Nitrile) rubber, this O-ring is formulated to provide exceptional resistance to petroleum-based oils, fuels, water, and many hydraulic fluids. The material choice is paramount in welding applications where equipment is often exposed to various coolants, lubricants, and shielding gases. With a 70A Durometer hardness, this seal offers the ideal balance between flexibility for easy installation and rigidity for extrusion resistance under pressure.

Dimensionally, the 97W33 is manufactured to precise tolerances. It features an Inner Diameter (ID) of 0.362 inches and a Cross Section (CS) of 0.103 inches. These dimensions correspond to the standard AS568-110 size, making it a versatile sealing solution for a multitude of mechanical interfaces. In the context of welding equipment, such O-rings are frequently utilized in MIG guns, TIG torches, gas regulators, and coolant connections where an airtight or watertight seal is non-negotiable. The integrity of these seals directly impacts the efficiency of gas shielding and coolant flow, preventing leaks that could compromise weld quality or damage equipment.

Technical reliability is the cornerstone of the ESAB 97W33. Buna-N is renowned for its wide operating temperature range, typically performing well from -40°F to 250°F (-40°C to 121°C), which covers the majority of ambient and operating conditions found in standard welding workshops. The 70 Shore A hardness ensures that the O-ring maintains its shape and sealing force even after repeated cycles of compression and decompression. This resilience helps in preventing the "compression set" that often leads to seal failure in inferior rubber compounds.

When sourcing replacement parts for high-performance ESAB equipment, utilizing genuine OEM components like the 97W33 ensures compatibility and longevity. Generic substitutes may lack the specific material formulation or dimensional precision required for critical sealing points. Whether used for static sealing in a regulator body or dynamic sealing in a torch assembly, this O-ring provides the assurance of a leak-free system, contributing to the overall safety and productivity of your welding operations.

Additional Information
Brand:ESAB
Product Type:O-Ring
Material:Buna-N (Nitrile Rubber)
Durometer:70A
Inner Diameter:0.362 inches
Cross Section:0.103 inches
AS568 Dash Number:110
Color:Black
Packaging Description:pack of 1

INCLUDED

  • 1 x ESAB 97W33 O-Ring (.362 ID x .103 CS Buna 70A)

APPLICATIONS

  • Sealing connections in MIG and TIG welding torches
  • Replacement seal for gas regulators and flowmeters
  • Water and coolant line connections in welding machines
  • Pneumatic and hydraulic fittings requiring AS568-110 size seals
  • General maintenance and repair of ESAB welding equipment

FAQ

The ESAB 97W33 is made from Buna-N (Nitrile) rubber, which is the standard material for general-purpose sealing due to its excellent resistance to oils and fuels.

This O-ring has an Inner Diameter (ID) of 0.362 inches and a Cross Section (CS) or thickness of 0.103 inches.

70A refers to the Durometer or hardness of the rubber. A 70 Shore A hardness is the standard for most O-rings, offering a good balance of compressibility and durability.

Yes, Buna-N O-rings are perfectly suitable for sealing inert welding gases like Argon, CO2, and Helium.

Yes, Buna-N has good water resistance and is commonly used in water-cooled torch systems and coolant lines.

If you notice gas leaks, coolant drips, or if the old O-ring appears cracked, flattened, or brittle, it is time to replace it.

Yes, the 97W33 is a genuine ESAB replacement part designed to meet the original equipment specifications.

Standard Buna-N O-rings typically operate effectively between -40°F and 250°F (-40°C to 121°C).