Skip to Main Content
Canadian
Canadian owned and operated

CK1743-1 - ESAB Non-Return Valve 0042021020

Packaging: 1 Per Ea
$163.97/EA $102.48/1 Per Ea only $102.48/EASave 38%

Usually ships within 3-5 business days

OVERVIEW

Genuine ESAB Replacement Non-Return Valve (0042021020)

Keep your ESAB welding equipment running smoothly with the ESAB Non-Return Valve (NRV). This authentic spare part, number 0042021020, is designed to replace worn or malfunctioning check valves in your welding machine's cooling or gas systems. A non-return valve is a small but mighty component; its primary job is to ensure that fluids or gases travel in a single direction, effectively blocking any reverse flow. This is particularly important in water-cooled TIG and MIG setups, where backflow can cause pump issues or inconsistent cooling, leading to torch overheating.

When a check valve fails, you might experience symptoms like delayed coolant flow, pressure irregularities, or even contamination in your gas lines. Swapping out the old valve for this genuine ESAB replacement restores the system's integrity instantly. Designed for durability and precise cracking pressure, this valve opens smoothly to allow flow and seals tightly to prevent return. It is compatible with a range of ESAB cooling units and wire feeder gas assemblies, making it a versatile part for your repair inventory.

Don't compromise on the quality of your machine repairs. Generic valves may not offer the same material compatibility or pressure ratings required by professional welding equipment. This ESAB NRV ensures that your machine meets the original factory specifications for safety and performance. Whether you are performing routine maintenance or troubleshooting a flow issue, this non-return valve provides the reliability you expect from a world leader in welding technology. Easy to install and built to last, it helps minimize downtime and keeps your fabrication projects on track.

Additional Information
Brand:ESAB
Part Type:Non-Return Valve
Packaging Description:1 Per Ea
Compatible Brand:ESAB
Product Type:Replacement Part

INCLUDED

  • 1 x Non-Return Valve (NRV)

APPLICATIONS

  • Water cooling units for TIG and MIG welding torches
  • Shielding gas delivery lines in wire feeders
  • Pneumatic systems within industrial welding equipment
  • General fluid flow control in compatible ESAB machinery

FAQ

It is a non-return valve (check valve) designed to allow fluid or gas to flow in only one direction, preventing backflow that could damage equipment or affect weld quality.

Yes, this is a genuine OEM replacement part manufactured by ESAB, ensuring correct fitment and performance specifications.

It is commonly used in water cooling units to prevent coolant drain-back and in gas lines to prevent atmospheric contamination.

Signs of failure include fluid flowing back into the reservoir when the machine is off, delayed cooling on startup, or gas pressure irregularities.

While it may physically fit other systems requiring a similar sized check valve, it is specifically engineered for ESAB equipment specifications.

Installation is generally straightforward, involving disconnecting the line and inserting the valve inline, but should be performed by a qualified technician.

Yes, this type of non-return valve is typically designed to handle both inert gases and cooling liquids used in welding applications.

The manufacturer part number for this non-return valve is 0042021020.