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21K70 - ESAB W-200 Series Replacement Throat Mixer No. 30

Packaging: pack of 1
$36.83/EA $22.23/pack of 1 only $22.23/EASave 40%

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SKU: ESB21K70 Category:

OVERVIEW

Precision Gas Mixing for W-200 Series Torches

The ESAB 21K70 Throat Mixer No. 30 is a specialized component engineered for the W-200 series of oxy-fuel welding handles. In the realm of industrial gas equipment, the mixer plays a pivotal role in safety and performance. It is the chamber where oxygen and fuel gas—typically acetylene, though others may be used depending on the setup—meet and blend before traveling to the welding tip. The 21K70 is manufactured to strict OEM tolerances, ensuring that this critical ratio is maintained precisely, which is essential for achieving a neutral flame capable of producing high-quality welds.

Constructed from high-grade brass, this throat mixer is designed to withstand the thermal cycling and internal pressures inherent in oxy-fuel processes. The brass material offers excellent corrosion resistance and durability, ensuring a long service life even in demanding workshop environments. For MRO specialists and procurement officers, sourcing genuine ESAB parts like the 21K70 guarantees compatibility with existing W-200 inventories, eliminating the fitment issues often associated with generic aftermarket replacements. This part is identified as "No. 30," indicating its specific flow characteristics and compatibility with corresponding welding heads and tips within the W-200 ecosystem.

Proper maintenance of the mixing assembly is vital for preventing dangerous conditions such as backfires and flashbacks. Over time, carbon buildup or mechanical wear can compromise a mixer's function. Replacing an aging mixer with the ESAB 21K70 restores the torch's internal geometry, ensuring smooth gas flow and reliable operation. This component is easily installed into the torch handle assembly, making it a straightforward repair for qualified technicians maintaining industrial welding outfits.

Technical Specifications

  • Manufacturer: ESAB
  • Part Number: 21K70
  • Model: Throat Mixer No. 30
  • Application: W-200 Welding Torch Handles
  • Material: Machined Brass
Additional Information
Brand:ESAB
Packaging Description:1 Per Ea
Compatible Series:W-200
Part Type:Throat Mixer
Material:Brass
Gas Service:Oxygen, Fuel Gas

INCLUDED

  • 1 x ESAB 21K70 Throat Mixer No. 30

APPLICATIONS

  • Oxy-fuel welding and brazing
  • Metal heating and bending
  • Automotive exhaust repair
  • HVAC piping installation
  • General fabrication and maintenance
  • Industrial MRO welding stations

FAQ

The ESAB 21K70 Throat Mixer is designed specifically for the W-200 series welding torch handles.

The throat mixer blends oxygen and fuel gas in precise proportions before they reach the welding tip, ensuring a stable and controllable flame.

Yes, this is a genuine ESAB OEM replacement part, ensuring correct fit and safety specifications.

Yes, the W-200 series and its mixers are commonly used with oxy-acetylene setups, as well as other fuel gases depending on the specific tip used.

Signs of a bad mixer include a fluctuating flame, popping sounds (backfiring), inability to set a neutral flame, or visible damage/carbon buildup that cannot be cleaned.

It is manufactured from high-quality brass for durability and resistance to oxidation and heat.

No, this is the mixer only. Welding tips (heads) are sold separately.

No, the mixer is an internal component of the torch assembly and can be replaced during standard maintenance disassembly.