Description
Working Principle of Corrosion Coupons
Corrosion coupons are used to monitor the corrosion rate of samples (specimens) in pipelines or containers. Specifically, by observing the annual corrosion rate of the exposed coupon, relevant information about the expected lifespan of the material can be provided.
Product Composition
Connection Method: The corrosion coupon connection method selected this time is flange installation.
The connection system consists of three basic components:
(1) Body and base
(2) Insert body
(3) Protective cover (A105)
Regarding the base, the dimensions of the pipeline connection part are ANSI 2″RF, and the main body material is typically carbon steel.
Moving on to the internal components, the corrosion coupon system consists of a solid plug, a coupon holder, and the test specimen.
Regarding the coupon and holder itself, both fixed-length and adjustable-length holders are available. Additionally, the types of coupons include strip coupons and round coupons, and custom drilling is optional.
Corrosion Coupons
The commonly provided corrosion coupons the strip type:
Dimensions: 3″ x 3/4″ x 1/16″ (76.2mm x 19.0mm x 3.2mm), with 2 mounting holes.
This time, the MS1018 material is selected.
Corrosion Coupon Holder:
The corrosion coupon holder is a device used to suspend the test specimen. Our company offers 4 types of corrosion coupon holders.
Corrosion Coupons Selection and Specifications
The model selected this time is the EMT-CIPA flange-connected corrosion monitoring system.
Connection Type: 2″ ANSI flange
Design Temperature: -20°C to 200°C
Design Pressure: 300#
Internal and External Components:
Materials in contact with liquid: 316L (excluding the coupon)
Sealing Material: Fluororubber/PTFE
Operating Temperature: -20°C to 200°C
Introduction to Corrosion Probes
Specifically, the complete assembly consists of a flange holder, a protective cover, the probe itself, a sealing plug, and pressure-temperature components.
The main specifications are as follows:
For the Internal Components:
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Metallic Material: 316L stainless steel
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Sealing Material: PTFE (Polytetrafluoroethylene) / Fluororubber
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Operating Temperature: -20 to 200°C
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Operating Pressure: 0 to 26 MPa
Regarding the Base and Protective Cover:
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Flange Specification: ANSI 2″ RF (Raised Face)
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Base Material: CS (Carbon Steel)
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Protective Cover Material: A105N
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Operating Pressure: 0 to 26 MPa
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Operating Temperature: -20 to 200°C
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