LAMOT CORPORATION Product Selection Guide

1 LAMOT CORPORATIONP roduct Selection GuideL-1000-12 LAMOT RUPTURE DISCSLAMOT FOR QUALITYS ince 1964, LAMOT Corporationhas manufactured rupture discs andrupture disc holders, using proventechniques, industry standards, andmodern manufacturing methods. Asa customer, we know you expectboth Product quality anddependable service. When youchoose LAMOT , this is preciselywhat you receive. All manufacturingis performed under an approvedISO 9001 Quality AssuranceSystem to assure that rupture discsand holders are built to exactingspecifications. Our sales people areready to offer immediate assistancewhen you need an answer, have aproblem to solve, or an order you choose LAMOT , thereare three advantages you cancount on with every order: Quick delivery Competitive price QualityRupture disc holders aremanufactured using computercontrolled equipment, thus ensuringquality finishes and dimensionalaccuracy.

2 Our rupture discs aremanufactured from a variety ofmetals which are purchasedaccording to closely metal forming techniquesand state-of-the-art pressureindicators insure very accuraterecorded rupture pressures. This, incombination with our years ofmanufacturing experience anddedication to quality, is assuranceof precision performance fromLAMOT invites inquiries on rupturedisc applications requiring specialdesigns or variations of ourstandard holders. Our highlyexperienced staff is available forholder design and materialselection according to CORPORATION produces tensiontype rupture discs for a wide range ofrupture disc holder configurations. Theserupture discs include both Standard andComposite is a Standard TypeRupture Disc?

3 The Standard Rupture Disc is a solidmetal, prebulged (preformed) differentialpressure relief device. It is widely used intoday's industry to protect equipment,vessels, and systems from anoverpressure condition. The rupture discprovides instantaneous full-openingwithin milliseconds of an overpressuresituation. LAMOT CORPORATION 'sStandard Rupture Disc providesperformance under pressure and is theguardian of the system.* Teflon is a registered trademark of du Pont de Nemoursand Company used under left cover photo courtesy of Air Liquide America; Houston, Standard Rupture Disc is usuallyused in systems that have an operatingpressure of up to 70% of the rupturedisc's rated burst pressure. Under idealoperating conditions, such as staticpressure with operating temperaturesthat are well below the maximumrecommended temperatures for therupture disc material being used, theStandard Rupture Disc may besubjected to operating pressures inexcess of 70% of the rated burstpressure.

4 Consult your LAMOT representative or the factory for detailedinformation about the use of theStandard Rupture Disc at operatingpressures greater than 70% of the ratedburst pressure. The minimum andmaximum burst pressures for theStandard Rupture Disc are found inTable and Materials The 30 angular seat design StandardRupture Disc is available in nominalsizes 1/2" through 12" (13 - 300 mm) foruse in Full Bolted, Insert, and Unionrupture disc holders. Pressure rangesfrom 3 psig to 6,000 psig (0,207 - 414barg) are available in a variety ofdifferent materials. Depending on thematerial of construction, this rupture discwill perform at temperatures up to1,000 F (538 C) and resist mostcorrosive media and atmosphericconditions.

5 The Standard Rupture Disc issuitable for either gas or liquidapplications. Refer to Table II forrecommended maximum operatingtemperatures of Standard Rupture Protection When a rupture disc is subjected tocorrosive elements from either the mediaor atmospheric side, LAMOT offers bothprotective liners and coatings to helpeliminate the effect corrosives might haveon the performance of the rupture , liners are made of Teflon *.a Continental Disc company3 LAMOT RUPTURE DISCSThe LDV is a type LD Rupture Discwith a vacuum support installed on theprocess side of the rupture type LPL Rupture Disc incorporatesa Teflon outlet liner and process sideseal for added protection againstcorrosion or Product build up. Thisrupture disc typically consists of a Teflonoutlet liner, metallic top section, andTeflon seal on the process side of the LPLV Rupture Disc is like the LPLR upture Disc, but additionally willwithstand full vacuum.

6 It is usuallyconstructed of a Teflon outlet liner,metallic vacuum support, metallic topsection, and Teflon seal on the processside of the top section. Positioning Teflonon both the inlet and outlet sides helpsprotect the vacuum support and topsection from corrosive media andreduces Product build LD is the basic CompositeRupture Disc and consists of a slottedmetal top section, with a Teflon or metalseal on the process side of the ResistantThe design of the Composite RuptureDisc allows for the use of highly corrosionresistant seal materials, such as Teflon orexotic metallic materials. This is possiblebecause the burst rating of the rupturedisc is determined by the slotted metal topsection. Therefore, the seal or liner canbe made of thin corrosion resistantmaterials and still provide a wide rangeof burst pressures economically.

7 Referto Table V for minimum/maximum burstpressures for the Composite PatternLAMOT CORPORATION 's CompositeRupture Disc top section is manufacturedwith a seven-hole pattern at the apex ofthe rupture disc dome. This seven-holepattern, along with the six precut sections,provides a non-fragmenting design whenused with a non-metallic or Teflon the seven-hole pattern, heaviermaterials of construction can be results in a higher operating to burstpressure ratio up to 80%.The use of various seal materials, suchas Teflon and exotic metallic materials,provide excellent corrosion the metallic seals, non-metallicseals are essential in minimizingfragmentation. When ordering aComposite Rupture Disc, specify whenyour application requires the use of anon-fragmenting design rupture Rupture Disc TypesLAMOT CORPORATION manufacturesseveral types of Composite preformedrupture is a Composite TypeRupture Disc?

8 A Composite Rupture Disc is adifferential pressure relief device used forprotecting equipment, vessels, andsystems from an overpressure rupture disc provides a number ofoutstanding features: Excellent low pressure capabilities Non-fragmenting design, when usedwith non-metallic seals 80% operating-to-burst-pressureratio Excellent for gaseous or liquidservice Three-dimensional flow tagThe Composite Rupture Disc isconstructed of two or more componentsof metallic or non-metallic materials. Therupture disc usually consists of a metallictop section, precision-cut to control theburst pressure, a metallic or non-metallicseal fitted to the concave side of the topsection, and an optional vacuum is designed to provide instantaneous,full-opening pressure relief withinmilliseconds when overpressure 30 angular seat designComposite Rupture Disc is available insizes ranging from 1" through 12" (25 -300 mm) and burst ratings as low as 2psig through 1,440 psig (0,138 - 99,3barg).

9 Because of the availability of avariety of different seal materials, theComposite Rupture Disc can perform attemperatures up to 1,000 F (538 C) andresist most corrosive and atmosphericconditions. Refer to Table II forrecommended maximum operatingtemperatures of Composite Rupture Composite Rupture Disc isrecommended for use in systems thathave an operating pressure of up to 80%of the rupture disc s rated burst ideal operating conditions, suchas static pressure with operatingtemperatures that are well below themaximum recommended temperaturesfor the rupture disc material being used,the Composite Rupture Disc may besubjected to operating pressures inexcess of 80% of the rated burstpressure. Consult your LAMOTC orporation representative or the factoryfor detailed information about the use ofthe Composite Rupture Disc at operatingpressures greater than 80% of the ratedburst rupture disc application has itsown unique operating conditions.

10 Factorssuch as cycling and ratio of operatingpressure must be considered to obtainmaximum service life. The range ofmaterials available for Standard orComposite rupture discs, combined withoptional protective liners, vacuumsupports, and protective rings, provide awide Selection of rupture discs for Rings Protective ringsmay be used on rupture discs made ofthinner materials or in instances wheredelicate liners are used. These ringsprotect the rupture disc from foreignmaterial in the seating area. Protectiverings also enable easier handling ofrupture discs during Protectors For situationswhere the outlet (vent side) dome of therupture disc may require protection fromphysical environmental elements, anoptional dent protector can be suppliedto minimize AND COMPOSITE RUPTURE DISCSO ptionsManufacturing RangeThe manufacturing range is defined asthe allowable pressure range withinwhich a rupture disc is rated.