Miniature burst disc plugs provide over pressure protection

Written by: Laura Hopperton | Published:

Lee Products' new burst disc plug provides reliable, high pressure relief in a leak-tight, corrosive resistant, standard miniature package measuring just 135 x 173mm, with special sizes as small as 64 x 94mm available on request.

The plugs, which are available with pressure ratings from 3,000 to 15,000psid, are designed to seal a passageway or volume until the rated burst pressure is exceeded. At this point the plug ruptures, creating a flow passage as large as Ø.64mm to relieve the excess pressure, or allow flow to, or from the isolated system.

They are made from NACE compliant materials (Incoloy 825 and Inconel 625), enabling them to withstand high temperature and corrosive environments.

They also feature Lee's field-proven seal which prevents bypass leakage, eliminates the need for secondary retention and the need for an O-ring or elastomeric seal. They have a tolerance of ±10% of rated burst pressure, operate up to 80% of rated burst pressure and are capable of operating in temperatures up to 232ºC.

Typical applications include down hole oil tool system isolation, instrument protection and chemical injection, over pressure protection and back-up in hydraulic/pneumatic systems and protection from corrosive media in process industry applications.


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