Scraper Trap Used In Pipeline Pigging

The design of a scraper launcher affects its performance significantly. High-quality materials boost durability and withstand pressure and corrosion.

Description

scraper trap

Brief Introduction to Scraper Trap

An EMT scraper trap plays a vital role in maintaining pipeline systems. It helps clean pipelines and ensures smooth operations. First, operators install the scraper launcher at the start of the pipeline. Then, they load a cleaning tool called a scraper or pig. Next, the launcher seals the chamber to prevent leaks. After sealing, the launcher pushes the scraper into the pipeline. As fluid flows, the scraper moves through the pipeline. It scrapes away debris, scale, and buildup inside the pipe. At the end, the scraper reaches a receiver station. The receiver collects the scraper safely for inspection. Operators check the scraper for damage or wear. They clean, repair, or replace it if needed. This process keeps pipelines efficient and prevents blockages. Additionally, it reduces corrosion and costly downtime.

The design of a scraper trap affects its performance significantly. High-quality materials boost durability and withstand pressure and corrosion. A good sealing system ensures no fluid escapes during loading. Reliable launching mechanisms allow precise scraper insertion. Proper sizing matches pipeline diameter and flow needs. Maintenance access points make servicing safe and easy. Accurate alignment ensures smooth scraper movement through the pipe. Integration with control systems improves coordination and monitoring. Lastly, safety features like pressure relief valves protect people and equipment. Therefore, a well-designed scraper trap improves pipeline reliability and safety.

scraper trap

 

Design Conditions

1Pipeline SizeFrom 6″ up to 56″
2Design CodeASME VIII Div 1; ASME B31.3; ASME B31.4; ASME B31.8, etc.
3Design Factor0.5, 0.6, 0.7, etc.
4Corrosion Allowance0-5mm or more
5Design PressureCL150, CL300, CL600, CL900, CL1500, CL2500, or as required.
6Design Temperature (Min/Max)-50℃ / 200℃
7Closure TypeClamp Ring Type Quick Opening Closure
8Installation OrientationHorizontal, Vertical, Inclined
9Applicable MediumGas, Oil, Petroleum, Chemical Materials, Water, etc.
Structure and Main Materials
1Major Barrel/Min BarrelASTM A106, ASTM A516 Gr.70, or as required.
2Quick Opening Closure
(with Interlock System)
ASTM A515 Gr.70, ASTM A516 Gr.70,
And ASTM A105, ASTM A350 LF2 Class1,
ASTM A694 F42 F46 F48 F50 F52 F56 F60 F65 F70,
or as required.
3Sealing Ring for the ClosureViton, Nitrile
4Saddle SupportQ235, or as required.
5FlangeASTM A105, ASTM A694 F70, or as required.
6Lifting Lug/EyesQ235, or as required.
7GroundingYes
8Name PlateStainless Steel, or as required.
Certificates
1ASME U Stamp CertificateApplicable
2Third-Party InspectionBV, SGS, ABS, DNV, or as required.

 

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