Feature

Miniature burst disc plugs provide over-pressure protection

Lee Products' burst disc plug provides reliable, high-pressure relief in a leak-tight, corrosion resistant, standard miniature package.

22/05/2014 16:09:24

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 0.64mm (12 Lohms) 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, as well as avoiding the need for secondary retention and an O-ring or elastomeric seal.

They have a tolerance of ±10 percent of rated burst pressure, operate up to 80 percent 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.

The units measure just 13.5mm x 17.3mm, with special sizes as small as 6.4mm x 9.4mm available on request.

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.