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34Z50 - Arcair K4000 Valve and Lever Screw Replacement

Packaging: pack of 1
$225.29/EA $138.81/pack of 1 only $138.81/EASave 38%

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OVERVIEW

Arcair 34Z50 Replacement Screw: Valve & Lever Hardware for K4000

The Arcair 34Z50 Screw is a vital replacement hardware component for the industry-standard K4000 Carbon Arc Gouging Torch. Located within the valve and lever assembly, this screw plays a pivotal role in the mechanical operation of the torch's air control system. When you depress the lever on your K4000, a precise sequence of mechanical actions releases compressed air to blow away molten metal; this screw ensures the lever stays aligned and connected to the valve body.

Over time, the harsh conditions of gouging—including spatter, intense heat, and rough handling—can cause small hardware components to wear out, corrode, or loosen. Attempting to use a generic screw from a hardware store may result in improper fitment, which can damage the torch body threads or interfere with the smooth action of the air valve. The Arcair 34Z50 is manufactured to exact tolerances, ensuring it seats perfectly without binding or stripping, preserving the longevity of your expensive torch handle.

This part is ideal for MRO (Maintenance, Repair, and Operations) professionals and welders who service their own equipment. Keeping spare hardware like the 34Z50 on hand prevents minor mechanical issues from turning into major production stoppages. Installation is straightforward and requires standard tools, allowing you to get your gouging torch back in service quickly. Trust in genuine Arcair parts to maintain the safety, efficiency, and comfort of your metal removal operations.

Installation and Maintenance

When replacing the valve and lever screw, it is recommended to inspect the condition of the lever and the valve spool as well. Ensure the threads in the torch body are clean before inserting the new 34Z50 screw. Tighten securely but avoid over-torquing to prevent damage to the brass or alloy components of the torch body.

Features

  • Precision Fit: Matches the thread specifications of the K4000 valve body.
  • Reliable Performance: Prevents lever wobble and ensures consistent air activation.
  • Industrial Grade: Designed to last in heavy fabrication and foundry environments.
Additional Information
Brand:Arcair
Packaging Description:1 Per Ea
Compatible Model:K4000, K-4000, Angle-Arc Torches
Part Type:Replacement Screw, Valve & Lever Hardware
Application:Carbon Arc Gouging

INCLUDED

  • 1 x Screw, Valve & Lever (34Z50)

APPLICATIONS

  • Repairing Arcair K4000 Gouging Torches
  • Replacing lost or stripped valve assembly screws
  • General maintenance of carbon arc gouging equipment
  • Restoring torch air control functionality

FAQ

The 34Z50 screw is designed specifically for the Arcair K4000 (and K-4000) Angle-Arc Carbon Arc Gouging Torch.

This screw is part of the valve and lever assembly. It typically secures the lever mechanism to the torch body or valve block.

Yes, this is a genuine OEM replacement part manufactured by Arcair (ESAB), ensuring perfect compatibility and quality.

It is not recommended. The 34Z50 has specific thread pitch and material properties designed to withstand the heat and stress of gouging without damaging the torch body.

Typically, only one screw of this specific part number is required for the valve/lever assembly, but always check your specific torch diagram.

It is made of industrial-grade metal (steel or alloy) designed to resist the thermal and mechanical stresses associated with carbon arc gouging.

No, this SKU (34Z50) is for the screw only. The lever and other valve components are sold separately.

A loose lever often indicates that the securing screw (like the 34Z50) has backed out or the pivot point is worn. Checking and tightening or replacing this screw is a good first step.