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Reg. 526
, Reg. 527, Reg. 528
STANDARD CONDITIONS FOR THE DESIGN AND CONSTRUCTION OF ECONOMIZER, FEED PIPES, FEED HEATERS AND OTHER SIMILAR VESSELS

REGULATIONS FOR REGISTRATION AND INSPECTION OF ECONOMISERS AND FEED PIPES

Procedure at subsequent inspection
a)

After the economiser has been cleaned the Inspector shall make a thorough examination so far as its construction permits. The external condition of the tubes should be carefully noted for wasting especially at the feed inlet end and all accessible tubes should be calibered. The internal surfaces of cast iron tubes should be closely observed for graphitic wasting as far as it is possible and in the event of any tube failure these should be broken up for scrutiny so that the general internal condition of the other tubes may be estimated.

b) Where tubes or other parts are wasted, the strength should be recalculated.
c) The scraper gear should be examined to note if any parts are missing if the length of travel is adequate and if the scrapers are correctly adjusted.
d) All cap bolts are to be inspected, also the condition and position of the dampers and baffles.
e) The record of each inspection and calculations will be entered in the Memorandum of Inspection Book.

 


Reg. 527

STANDARD CONDITIONS FOR THE DESIGN AND CONSTRUCTION OF ECONOMIZER, FEED PIPES, FEED HEATERS AND OTHER SIMILAR VESSELS

REGULATIONS FOR REGISTRATION AND INSPECTION OF ECONOMISERS AND FEED PIPES

Procedure for Hydraulic test
 

Every economiser for registration shall be hydraulically tested in the presence of an Inspector to 1 ½ times the working pressure. Hydraulic tests of economisers at subsequent examinations shall when required by the Inspector, be made after the inspection. The test pressure to be applied to economisers at subsequent examinations shall be from 1-1/4  to 1-1/2 times the working pressure of the economisers. During the test, all parts externally and in the flues shall be noted for leakage.

 


Reg. 528

STANDARD CONDITIONS FOR THE DESIGN AND CONSTRUCTION OF ECONOMIZER, FEED PIPES, FEED HEATERS AND OTHER SIMILAR VESSELS

REGULATIONS FOR REGISTRATION AND INSPECTION OF ECONOMISERS AND FEED PIPES

Memorandum of Inspection Book
 

In this book the Inspector shall enter all particulars and dimensions of the economiser with the required calculations for the various parts together with details of hydraulic test. At subsequent inspection the Inspector shall enter all notes pertaining to the condition of the various parts.

 
 
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