WHEN SHOULD YOU MAKE THE SWITCH FROM
RUPTURE DISC TO RUPTURE PIN?
Over the years, many of our customers have come to us with one important question: When should a Rupture Pin Valve be
considered as a replacement for a rupture disc?
After
answering the same question time
and again, we decided it was best to develop the following checklist to educate you on making your best decision.
Now you can judge for yourself whether your plant, process or program
may benefit from our advanced valve technology by answering the
following questions below.
A “Yes” response
in ANY area indicates Rupture Pin valves can provide improved
efficiency and safety in your application.
Areas
You May Face Rupture Disc Problems --------------------------------------------------------------------------------------------
I
operate my process below optimum pressure to prevent early rupture disc failure. Yes..No --------------------------------------------------------------------------------------------
I follow the rupture disc manufacturer's recommendation and replace discs annually. Yes..No --------------------------------------------------------------------------------------------
I have experienced system pressure surges that cause premature disc failure due
to fatigue. Yes..No --------------------------------------------------------------------------------------------
System chemicals attacking rupture disc material have caused premature
disc failures. Yes..No --------------------------------------------------------------------------------------------
I have noted that system temperature variations can cause the
rupture disc to
fail early or late. Yes..No --------------------------------------------------------------------------------------------
Getting replacement discs to my plant has taken more than 24
hours and included
excessive premium costs. Yes..No --------------------------------------------------------------------------------------------
My system fluid is toxic or an environmental hazard, so dangerous fugitive emissions
are released to the atmosphere and ground
water when changing rupture discs. Yes..No --------------------------------------------------------------------------------------------
I have experienced costly process downtime during disc changes. Yes..No --------------------------------------------------------------------------------------------
Disc changes at my plant require skilled labor. This assures
the disc is not installed
backwards and that torque ratings
and order of tightening are strictly followed. Yes..No --------------------------------------------------------------------------------------------
At all rupture disc set points the product of the tolerance chain is excessive.
(manufacturing tolerance X temperature
tolerance X standard tolerance) Yes..No --------------------------------------------------------------------------------------------
Metal or plastic shards violently discharged from a failed
rupture disc have injured
nearby personnel. Yes..No --------------------------------------------------------------------------------------------
Metal or plastic shards from failed discs have clogged downstream piping and
damaged downstream equipment or valves. Yes..No --------------------------------------------------------------------------------------------
System back pressure radically changes the set point of the rupture disc. Yes..No --------------------------------------------------------------------------------------------
Back pressure surges have caused forward-buckling discs to
reverse buckle and
fail early. Yes..No --------------------------------------------------------------------------------------------
Discs have prematurely buckled on holidays or weekends, causing scheduling and
overtime difficulty. Yes..No --------------------------------------------------------------------------------------------
The plant storeroom has been closed at the time we needed a replacement disc. Yes..No --------------------------------------------------------------------------------------------
We use many discs in our system. We can’t tell which
disc has failed... because the
Broken Disc Indicator malfunctions. Yes..No --------------------------------------------------------------------------------------------
The rupture disc in our sewage dewatering process failed...
and we had to change
the disc. Yes..No --------------------------------------------------------------------------------------------
The rupture disc in our toxic process failed... and we had to suit up for the job to
change the disc. Yes..No --------------------------------------------------------------------------------------------
Standard rupture disc tolerances are excessive below 40 psi. Yes..No --------------------------------------------------------------------------------------------
The premature failure of a rupture disc caused a fugitive emissions danger to
nearby communities that resulted in a lawsuit and an EPA fine. Yes..No
If you checked “Yes” in any of the above areas, contact Rupture Pin Technology now. We’ll be pleased to tell you more about Rupture Pin Valves designed for your specific application. Contact your local representative today.
