Benoil Services Ltd

8.7.1. Burst Discs 3/4"-style o-ring on chamfered seat

19mm burst disc assys
202100 1000psi 202350 3500psi 202600 6000psi
202150 1500psi 202400 4000psi 202650 6500psi
202200 2000psi 202450 4500psi 202700 7000psi
202250 2500psi 202500 5000psi 202750 7500psi
202300 3000psi 202550 5500psi 202800 8000psi
This series is shown on drawing 10274. Overall length 5/8". Seal mechanisim is a chamfer o-ring seal between the side and bottom face of the port. The port drawing for these bursting discs is drawing 10490.
General notes:
Customers have asked us whether repeated pressurisation affects the foil and therefore whether the burst disc can still be relied on to rupture at the target burst pressure after multiple use. Benoil burst discs are designed for single use and therefore recommended practice is to use the discs once only.
Please note that although the nominal thru bore is 19mm, this will vary as one of the variables is the ID of the burst disc. If there is a minimum thru-bore requirement post rupture, please advise this at the time of enquiry. Some tools / applications have a critical minimum flow rate or a minimum debris size to pass post rupture.

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