Kelso JS75 - Page 17

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JS PRESSURE RELIEF VALVES
© 2017 Kelso Technologies (USA) Inc. All Kelso Valves are Patent Protected. Detailed designs are subject to change without notice.
Kelso Technologies Inc. 1526 Texas Ave, Bonham, TX. 75418, Phone: (903) 583-9200
Document No. - KTUD112
Revision 6 – 2/7/2022 (Original Release 12/7/2015)
www.kelsotech.com
Printed in U.S.A.
6. The spring drum should be examined for signs of distress. The drum edges
should not be flared or show signs of cracking. The bore through the drums
should be round and wear of 1/32” or more will require replacement of the drum
(Figure 4.17). Excessive wear can make for uneven adjustment and affect seal
disc seating. Figure 4.18 displays the nominal I.D. dimension for each possible
bolt size and the maximum allowable for each. If the measurement exceeds the
maximum allowable, the drum should be replaced.
Figure 4.13
Figure 4.14
Figure 4.15
Figure 4.16
Figure 4.17