ASSALAMUALAIKUM-WELCOME TO THE BLOG BOILERMAN
Home » » Regulation 49. Location of safety valves.

Regulation 49. Location of safety valves.



                                   P.U.(A) 5/70
FACTORIES AND MACHINERY (STEAM BOILER AND  
                  UNFIRED PRESSURE VESSEL)
                            REGULATIONS, 1970
PART III - UNFIRED PRESSURE VESSELS

Regulation 49. Location of safety valves.

Every unfired pressure vessel safety valve shall-
(i) be mounted direct on the unfired pressure vessel:

Provided that where this is not practicable the connecting branch shall have an
unobstructed cross-sectional area not less than the area of the safety valve and shall be
as short as practicable:
 
Provided further that where an air receiver can be isolated from its protecting safety valve
a suitable fusible plug, the fusible portion of which will melt at a temperature of not more
than two hundred degrees Fahrenheit greater than the working temperature of the air
receiver, shall be fitted to it;

(ii) where it is so located that liquid may collect above the valve, be fitted with a drain at
the lowest point where such liquid can collect. Such drain shall not be less than threesixteenths
of an inch in diameter; and

(iii) have an entrance thereto clear and unobstructed by any internal pipe or baffle and so
situated that the carry-over of any viscous substance cannot block it.



Copyright © 2004 PNMB-LawNet. All rights reserved.




















No comments:

Post a Comment

Saya amat berterima kasih sekiranya anda dapat memberi komen yang baik tentang blog ini.

Note: Only a member of this blog may post a comment.