Burst Disk Replacement

[smorneau]

I just purchased a new Blue Steel Manifold/valves to double up my old PST LP72's. I requested LP burst disk for the valves. When it arived it had HP disk in the valves and they sent me two LP disk with it. I now need to replace the disk with th LP ones sent. What do I need to do to remove the HP disk and replace with the LP ones.

I know this is "Life support equipment" and some will say I should have my LDS do this, but I would like to do it myself to become more farmiliar with the inter working of my gear.

Thanks

 

[Scared Silly]

Ya need a wrench or preferably one with a socket. Removing them is not any big deal nor is replacing them except for on piece of information. What are the torquing requirements? Burst disks should be torqued appropriately.

 

[smorneau]

Is it as simple as removing the bolt and taking out the old disk with a pick, then pushing the new disk into place, replace with new bolt and torquing to the required force?

 

[tbone1004]

pretty much yeah, just make sure you have a torque wrench otherwise you could be in for a nice surprise when filling. :-D
I just use one piece plugs. Bit more expensive, but they're easier and less fussy.
Torque is usually 50-60in/lbs do this quickly so you don't break the plastic seats

 

[smorneau]

I appears that it is a one piece with the plastic piece holding the disk to the bolt, does the plasic piece go into the valve or is it removed before inserting?