EMERSON Manual Std- Heavy Duty Que-Temp Desuperheater IOM US
Summary
This essential guide provides comprehensive instructions for installing and maintaining Que - Temp Desuperheaters across various industrial piping systems. The manual covers everything from pre-installation checks and proper setup according to industry codes to detailed procedures for flushing, troubleshooting, and routine maintenance of spray cylinders. It is designed for facility engineers and technicians responsible for operating and maintaining high-pressure steam temperature control equipment.
Page 1 Text Content
Yarwa Y Que - Te Mp desuperhea Ter s Tandard-/heavy du Ty Installat Ion and ma Intenance Instruct Ions
Before installation these instructions must be fully read and understood
Model 33 / 43 installation of the QUe - temp
Des Uperheater
Before installation, check the Que - Temp desuperheater for any visible damage. Model 13 / 23 Check that the information on the documentation, identification plate and tag number complies with the order specification. remove the Que - Temp desuperheater carefully from it’s packaging, lifting by means of straps around the body. leave the flange covers in place during transportation, until ready to install in the pipework.
When installing the Que - Temp desuperheater use gaskets and bolting material in accordance with the relevant piping code, for example as Me B31.1 or en. place the gasket onto the mounting flange and carefully insert the nozzle into the branch pipe. ensure that the spray cylinder is pointed in the direction of the steam flow before tightening the mounting bolts (see Figure 3).
Unpacking note: the Que - Temp desuperheaters should be free of ‘forces, moments and torques’.
The yarway Que - Temp desuperheater is packed with the greatest of care in wooden The Que - Temp desuperheater is provided with boxes or cartons for protection during handling a standard lower body length, as specified in and transit to site. after hydrostatic testing, the contract drawing and the mounting branch the Que - Temp desuperheater is flushed for the steam pipework must be manufactured through with a high grade of preservative to to suit. The length of this branch should be protect machined and internal surfaces from such, that the centerline of the spray cylinder corrosion. If it is found, however, that damage is located on the centerline of the steam has occurred during shipment, then this should pipe (± 5 mm). be reported immediately to your forwarder or yarway representative. The mounting branch should be for particular care should be exercised when Model 33 / 13, 3” (dn 80) and for Model 43 / 23, removing the Que - Temp desuperheater 4” (dn 100) nominal bore, maximum pipe from its packing and your special attention is schedule 160 for clearance purposes (check required to check carefully that no damage the applicable power piping code). has occurred to flange faces, threadings, etc. (see Figures 1 and 2). recommen Dations
(acid cleaning of steam boilers) Remove Que - Temp Desuperheaters from the piping prior to acid cleaning!
Emerson.com/Final Control © 2017 Emerson. All rights reserved. Vciom-03760-Us 15/07
Page Summary Contents For EMERSON Manual Std- Heavy Duty Que-Temp Desuperheater IOM US
Manual Details
| Brand | Emerson |
|---|---|
| Pages | 7 |
| File Size | 531.69 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What should I check before installing the desuperheater?
Check for visible damage, and ensure that documentation details match the order specification plate numbers.
When installing the unit, what specific guidance is given regarding gaskets and bolts?
Use gaskets and bolting material in accordance with the relevant piping code, such as ASME B31.1 or EN.
What safety precautions must be taken when servicing the spray cylinder?
Inspect internals using a flashlight; use proper tools and wear protective workwear while maintaining a maximum eccentricity of 0.25 mm.
How far should the steam pipework run be between the desuperheater and the temperature sensor?
The distance is nominally 12 to 15 meters, though specific distances are advised by Yarway at the enquiry stage.