Find out the successive steps to replace a 3 piece ball valve seal thanks to SYVECOACH.
Thank you to our sister company SFERACO for the cooperation on this video.

0:00 Introduction
0:17 Required tools
0:21 1/ Unscrew the handle nut using the wrench to remove the handle
0:37 2/ Unlock the gland packing retainer
1:02 3/ Block the ball, then unscrew the gland nut
1:11 4/ Remove the tab washer, the spring washers and the gland bush
1:28 5/ Unscrew the bolts in a crosswise sequence to remove the studs
1:47 6/ Remove the ends
1:53 7/ Take out the seats
2:08 8/ Remove the ball
2:12 9/ Take out the stem
2:18 10/ Remove the stem gaskets
2:23 11/ Take out the gland packing
2:31 The disassembled valve is ready for seal replacement
2:36 12/ Take the new gasket kit
2:40 13/ Take the new stem gaskets and insert them
2:50 14/ Take the new gland packing and insert it
3:03 15/ Put the stem back in place
3:13 16/ Put the gland bush, the spring washers, the tab washer and the gland nut back in place
3:27 17/ Insert the ball
3:34 18/ Block the ball and tighten the gland nut
3:44 19/ Lock the gland packing retainer
3:52 20/ Add the new seats
4:00 21/ Put the ends back in place
4:06 22/ Insert the studs
4:26 23/ Tighten the nuts in a crosswise sequence
4:39 24/ Define the setting of the dynamometric key according to the data sheet
4:45 25/ Tighten with the dynamometric key (crosswise)
4:55 26/ Put the handle back in place
5:03 27/ Tighten the handle nut
5:07 The new gasket kit is now mounted!

свернуть