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Steam Tracing - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/steam-tracing
Caustic Lines - Chemical plant design & operations - Eng …
https://www.eng-tips.com/viewthread.cfm?qid=151233
To follow up on the excellent comments by sshep, steam tracing of caustic-carrying lines (carbon steel lines, in particular) can be quite dangerous if the tracing lines touch the caustic lines. Hot caustic causes embrittlement of any weld joints in the caustic lines. Hot caustic can actually cause carbon steel piping to literally "fall apart".
What’s the Caustic Cracking in the steam pipeline?
https://www.wldsteel.com/whats-the-caustic-cracking-in-the-steam-pipeline/
The sensitive potential of caustic cracking of low carbon steam pipeline steel in boiling 35%~40% NaOH solution is -1150~800mV (SCE), and the potential of caustic cracking occurs in the range of -700mV (SCE) at boiling …
Heat Tracing of Piping Systems - Effective Steam Tracing
https://wermac.org/documents/steam_tracing.html
The most common diameters of steam tracing are 3/8 in. (9.52 mm) and 1/2 in. (12.7 mm) OD copper or stainless steel tubing. Diameters of 5/8 in. (15.88 mm) and 3/4 in. (19.05 mm) OD tubing have been used; however, this entails greater expense. Tubing that is 3/8 in. is more easily plugged by sediment and/or debris, so it is less frequently used.
A Case Study on Caustic Corrosion in Refinery Piping
http://ijeit.misuratau.edu.ly/wp-content/uploads/2016/11/2-8.pdf
Pipe skin temperature is measured at some locations and found approx. = 55 °C on 2" caustic pipe and 87°C on 1/2" steam tracing piping. Steam tracing was found online even without caustic transfer (intermittent). Figure 2a. Caustic Gouging Figure 2b. Caustic Embrittlement (CSCC) III. …
STEAM TRACER LINE APPLICATIONS - Armstrong International
https://www.armstronginternational.com/sites/default/files/resources/documents/steamtraplineapp.pdf
On horizontal fluid lines, tracing steam generally flows in the opposite direction of the fluid in the pipe, but it must be installed to allow the condensate to drain by gravity.Low points which can cause stagnation and the resulting cold spots should be avoided. Generally when a single tracer line is used, the line is placed under the fluid pipe.
DESIGN GUIDE - Thermon
https://content.thermon.com/pdf/ca_pdf_files/TSP0013-Steam-Tracing-Design.pdf
Step 2: Select the Proper Thermon Steam Tracing Method For a steam tracing system to perform at optimal levels, choose the type of tracer that most closely meets the process design requirements using Table 2.1 below. Table 2.1 Process Temperature vs. Tracer Type Pipe Size in (mm)50°-100°F (10°-38°C)(39°-66°C) 151°-200°F (67°-93°C)
Technical Specification Guide for Steam Tracing and …
https://www.armstronginternational.com/sites/default/files/resources/files/Guide%20to%20Steam%20Tracing%20and%20Condensate%20Collection.doc
tracer piping on mea, acid, caustic, phenol, and liquid benzene lines, and on instrument leads handling volatile stocks, shall be separated from these lines by a one inch (1") wide non-asbestos tape, suitable for a temperature of 400°f, wrapped around the steam line to a thickness of about ½”, spaced at a maximum of 18" o.c. separation may also …
Water treatment: Temperature maintenance & caustic lines
https://www.thermon.co.za/case-study/the-critical-role-of-temperature-maintenance-in-caustic-lines
With the introduction of a simple heating design on the tanks and trace heating on the pipelines, it is easily possible to store, deliver and process with high caustic concentrations resulting in more efficient systems. Thermon is a specialist in applying …
50% Caustic Piping in Cold Climate - CR4 Discussion Thread
https://cr4.globalspec.com/thread/23272/50-Caustic-Piping-in-Cold-Climate
Quite. Self-regulating electric trace heating tape, covered with a substantial quantity of pipe heat insulation and protected from water ingress, will do the job. Steam has also been used to trace-heat caustic lines in heritage installations, 1/4" copper pipework for the steam being secured to the process pipe before the insulation goes on.
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