Description

Corrosion Coupon Retrieval Tool is used to retrieve the corrosion coupons in the pipes. The tool has a stainless steel guide that is designed to get the corroded area of the coupon. This ensures that the brush can reach deep into the obstructions, which means your system will be free of debris and have a long lifespan.

Usage Method

To retrieve a corrosion coupon from a pipe, first gather the necessary tools and safety gear. Ensure you have the retrieval tool, safety gloves, and goggles. Next, shut down the pipeline section where the coupon is installed. Isolate this section by stopping the flow and depressurizing the line. Then, locate the corrosion coupon holder on the pipeline. Carefully remove the holder cap using a wrench or similar tool.

First, insert the retrieval tool into the coupon holder. Next, align the tool properly to engage the corrosion coupon. Then, twist the tool to securely grip the coupon. Slowly pull the tool out, bringing the coupon with it. Afterward, inspect the coupon for wear or corrosion. If needed, replace it with a new one and reinsert it using the tool. Finally, replace the cap on the holder and restart the pipeline section. Lastly, record the coupon’s condition for future reference.

Parameters

Introduction

The EMT Retriever and Service Valve are designed to install and retrieve internal corrosion monitoring equipment within an operating system under full working pressure, up to 3,600 psi (24.8 MPa). Additionally, a 6,000 psi (41.4 MPa) model is available. These key components of the EMT Retrievable System are versatile tools with a proven track record of reliable and safe performance in field applications.

Both the retriever and service valve allow for retrieval under pressure through a 2″ access fitting body. They incorporate many features to ensure safe, swift, and easy use. Manufacturers make the retriever’s main components from stainless steel and apply a chroming treatment for resistance to mechanical and corrosion damage. This ensures many years of reliable service. Seven standard sizes of retrievers cover most service requirements, with custom sizes available upon request.

The retriever operates on a pressure-balanced principle, a safety feature that prevents telescoping in the event of sudden pressure release from the system. It functions strictly under mechanical principles, with a known constant number of turns to fully seat or retract a component. This design gives the operator complete control over installation or removal, providing a distinct advantage over other retriever/access systems.