Hydrogen refueling stations and transportation pose unique safety challenges due to the risks associated with hydrogen gas. Hydrogen Environmental Embrittlement (HEE) and handling high-pressure or extremely low-temperature (-501°F/-296°C) valves can lead to potential hazards. In this webinar, our experts will present innovative solutions to address these challenges and ensure the safe operation of hydrogen refueling stations and transportation systems.
okay welcome to everybody who’s joining the Trillium uh webinar on hydren Solutions just a couple of housekeeping items there will be time for questions at the end uh you can type your questions at any time in the Q&A box on the the bottom of the the zoom window so please take the time to do that and we will try to answer any and all questions as they come up um with that I’ll let uh let you start off S thanks so my name is Sebastian and I’m joined with today with my colleague Simon bro uh we think we want to thank you to taking time to hen from your business schedule today we will talk about hydrogen uh hydrogen is a new market which is very booming has its part of energy transition it will help for energy transition to reduce uh partially uh CO2 emission worldwide as you know many country has involved and have their own run map to reduce CO2 emission and uh and to reach the Net Zero emission Target by 250 um but challenge are multiple and more particularity for from the infrastructure that need to be built to uh to supply hydrogen especially for transportation at the Trum group we are engaged to support solution to reduce climate warming we believe in energy transition and wish to contribute thanks to a hydrogen solution and patent model we develop for that as um you know maybe trillion Supply safety dollar for hydrogen service from decade and we will take the opportunity to highlight that during this webinar let’s review the agenda of the day so basically it will be split in four session first as usual we will briefly present Trum then I will let Simon present the market challenge where we will likely to find hydrogen or not uh I will talk about solution San develop to fit with a hydrogen application and we will finish by the Q&A session but again feel free to to ask your question as they come up we will reply at the end remember to keep presentation in the full screen mode if possible to see data table and graph just a recommendation so my name is Sebastian veren I hold a master degree in F element analysis and join the pressure revive industry in 2009 I became familiar with the es Miko good during five years in the engineering department before joining Trum it’s product team and being focused on the Saran pre L hi and my name is Simon Bradshaw I look after uh engineering for trillum and uh as it says there I’ve been in the pump and valve industry pretty much my entire career it’s a pretty boring resume four decades worth um I’ve done a bunch of stuff with a bunch of different companies and and now having fun doing this with with trolling so let’s start with an overview of Trum FL technology brand portfolio uh in blue you have a pum brand in Green in green valve brand so in in pump we have bman flow gabun API valve turo mechanic Roto jet sorry gabinet API pums Roto Jet rco and w from the valve perspective we have AR and moral isolation and check valve autoo actuator ble butterfly valve blackb control valve and Chu valve upkins parall SL valve sarine pressure revve so as you can see a very large portfolio of of valve solution three Centric triple offset butterfly valve that even if it is dedicated for nuclear could address also hydrogen as well as a red Point valve all leading name in this industry so if Trum doesn’t renew the Bell as a minimum we expect some of this brand name renew the B um in total it’s it’s 17 long-standing trusted brand which are manufactur uh on 12 different manufacturing facility and four service center localized throughout the US ukuk France Italy Netherland South Korea China and India by 2,000 employee globally so trium for technology ritage Rage of innovation SP 190 years the corporation is not standing still adding new products and services to make our customer processes more efficient and productive recent example of this includes the previously mentioned red Point valve product and offering joining Trum family in 2020 expanding our product and service provision for valve and in 20122 we were joined by CH mean pum enhancing our expertise and offering in pumps for poor water plus oil and gas as well as hening the Trillium flow service portfolio just to have the core focus on the prv solution and just also to demonstrate uh we address hydrogen market for decade uh Saran got its first Po from Air liquid which proposed unique solution for air separation air separation unit ASU and steam methan reforming in 1984 so it’s a long partnership and we Supply already a solution from for cryogenic or High Press valve uh so let’s try to First understand uh hydrogen challenge hang over to Simon for that yeah so thanks Sebastian um all right so let’s just kind of break down a little bit the background of hydrogen I’m sure some of you already know this but it’s it’s probably worth just just getting a good grounding around it uh just to remind you again the if you have any questions as we go through this please type them in the Q&A box at the the bottom of the the zoom window um this webinar will also be available on the Trillium YouTube channel uh a after a couple of days so if you do feel you miss something you can always go there to get it all right so hydrogen um as it says there it’s it’s pretty much the most the oldest uh most abundant uh element in the universe typically it’s bound up with something um you know water hydrocarbons organic matter uh etc etc you may have seen in the news there’s some excitement over um some sources of you know geological sources of pure hydrogen whether that plays out to be anything uh remains to be seen at the moment um hydrogen is very energetic one kilogram of hydrogen uh has three times as much energy as a kilogram of gasoline or petrol depending which part of the world you’re in uh however the flip side of that is it has a very low density so the the graphic at the bottom is essentially just visual izing the space that would be taken up by one kilogram of hydrogen again so at atmospheric pressure you have an enormous volume if you were to convert that hydrogen into ammonia uh you can essentially drop that almost by a factor of 10 if you compress that hydrogen instead to 700 bar uh you can you can get it down fairly small and then if you liquefy it you can get it smaller still all of all of those methods of shrinking the space have their um their benefits and drawbacks um and require you know specific valves and design to to do the job effectively um next slide all right hydrogen types I’m sure most of you already know this we’ll just go hit the highlights on this the main one of course that’s in the news gets everybody talking about is green green hydrogen uh mainly because the the is it’s going to help reduce the the the world’s carbon footprint or at least that’s the intent um the the again the lot of the news tends to be around uh green hydrogen for water water electrolysis but as you can see on the graph there there are other methods of doing it besides that um some some of which are are less developed than others um you also may come across pink and yellow hydrogen which just denotes the the type of electricity that’s used to to to create it um the one that that most hydrogen today is is produced uh from natural gas which is gray hydrogen which is done through Steam reforming um that that as um a very large carbon footprint as it says there because essentially you’re stripping the hydrogen away and dumping the uh the carbon out into the atmosphere there is the possibility to do blue hydrogen which is steam reforming plus some form of carbon capture which will reduce the um the carbon footprint somewhat at the cost of increased energy consumption and the like next slide all right the other thing you tend to see in the news is is that hydrogen is going to be this um massive Swiss army knife that’s going to do everything it’s going to do Transportation it’s going to do this do that the reality is that in the long run and this this is the long run Market is not necessarily what we’re in right now but in the long run there are certain certain applications are going to win out for hydrogen or more likely to win out for hydrogen and some are not just because of the the economics and the the techn the technical details around it so there’s a couple of ways to look at this one of these is this so-called hydrogen ladder which is uh from libric and Associates you can see the U the credits at the bottom there and essentially the way they look at it is the there’s applications on the at the top of the ladder where there is no real alternative to using hydrogen and you know for example fertilizer production which you know there’s something like 185 million tons of ammonia is produced every year from Gray hydrogen for that purpose so you can see those along the top that th those will absolutely require green hydrogen in the future there’s it’s almost 100% certainty then as you go down the ladder you have the applications that are you know there are some alternatives to using hydrogen and those are shown there a lot of them are simply electrification um and you get down to things like uh at the bottom at the the the level G things that that whilst it’s it’s not this the probability is not zero it’s very close to zero that things like domestic heating will use hydrogen it the the the the the technical aspects and economics just don’t make sense in the long run and it’s unlikely that that will prevail okay next slide this is from a different grouping um energy transition commission from 2021 so it’s a little bit older um it kind of says much of the same thing uh so you they just put it in a different way uh they have the confidence in the roller hydrogen on the x-axis and the Readiness in terms of technical Readiness um economic Readiness on the the the vertical the Y AIS and you can see there the the size of the bubble is the size of Market or potential that they they’ve identified um some like fertilizer methanol production refining are already they’re they have a very high confidence that the hydrogen will be required and the Readiness is already there those processes are well known and understood uh ones like power storage steel shipping Aviation they’re much much less mature and there will definitely be work that will be required to um to make you know to make those happen and then finally we have a graph on hydrogen production so the reason for this is showing you the trajectory of uh different production routes in terms of cost so the way to read this graph is there’s there’s a red line and a green line and they represent the costs for for producing green hydrogen depending on the um the the cost of electricity so it’s they have it for a favorable location and also Al for an average location and the takeaway here is when you put that up against the the the the cost of creating blue hydrogen which if you remember is using natural gas uh for steam Reformation plus carbon cap some form of carbon capture if you look at the the trajectory around the end of this decade it even even in an average country it looks like it will probably be favorable in other words they’ll be it’ll be more or less cost neutral as to whether you do blue hydrogen or green hydrogen and so that’s the kind of end point that we’re you know we in Trum are kind of looking at where where green hydrogen really really takes off okay I’m heading back to Sebastian so there are different kind of hydrogen application as we understand now from production to sample use from also Upstream to Downstream and obviously we will find different kind of application to serve this Market we won’t cover all of them uh today we consider 39% is in the industry sector 30% in transport 26% in Heating and PO for building 5% in po generation so again the idea is to uh to show in this graphic the connection between the different application and the the product portfolio we can offer if you look at Upstream so speically as as mentioned by by Simon if we consider gray hydrogen steam methan reforming where we will deal with S gas or STIs gas where we will split hydrogen to carbon monoxide uh it’s a mix so the gas is not purified yet and you can find a mix of different kind of solution from Spring noed to a pilot pred solution either sem noer or full full nozer type uh for nozle being prefer to to reduce the leakage rate uh another another um um yeah another um segment is a pore on that case hydrogen being used as a fuel to convert water into steam the valve won’t see directly hydrogen it will be a standard uh steam valve uh connect to a a part of hydrogen Market but not directly indirectly so obviously it’s not the topic of the day but is just to highlight we can have uh we can propose solution to deal with a steam application connect on this Market as well today we will be more focused on on the hydrogen refueling station and this patenting solution that has been developed especially for this Market so H2 star we will review all together it’s a quite important step forward because in the H2 commercialization we need to adopt infrastructure that meet regulation in term of safety and relability so let’s try to go more in depth on the to understand what means safety and relability and the concern that are all around hydrogen so as mentioned by Simon earlier hydrogen is odorless colorless but on top of that is very flamable and the biggest concern is also even if uh we talk about blue hydrogen or green hydrogen by Green it means okay potentially it doesn’t have direct impact on the greenhous gas emission which is partially true but also partially wrong if hydrogen will help to reduce carbon dioxide emission it will also have uh indirect negative impact on the global warming up to 5.8 time worse than CO2 emission so how does that come or how is it possible the answer is not so easy to understand but we will explain it uh once it is released directly into the atmosphere hydrogen itself can inter interact with over gases and Vapor in the air to produce powerful warming effects as an example hydrogen can extend the lifetime of atmospheric methan so methan which is connect to LG Market indirectly which is also an incredibly potent greenhous gas GSG gas causing some 80 time more warning warming effect than an equivalent weight of CO2 over the first 20 years so we understand it’s quite important to reduce hydrogen emission even if it is a green hydrogen how to do it reduce leakage leakage are everywhere when you in at Upstream but also during transportation and also during storage uh if we consider the vessel that has been the gas cylinder we talk just earlier uh we can assume we will have we will use between 0 to 12 to 0 to 24% per day it’s look like nothing but at the end if you combine here on a on a if you consider the leakage on a complete year and the quantity of Vel that are supposed to be developed in the upcoming uh year it will be significant so this is where Thum uh will operate uh how dealing with a solution to reduce uh leakage and to make a to develop a robust design one uh of the key thing it’s of course to deal with the high pressure we already see it 10 up to 10,000 bar propose the right material we will see this but on top of that reduce the leakage there is a study that has been performed by the national renewable energy laboratory the N about uh prv relability the result is 45% of safety value where with in the spec by spec it means comply with what we can expect when you buy prv to be open at the right at pressure to keep the right tightness to release their capacity that means 55% of prv fail if we go more in depth on this failure the majority 34% fail due to the wrong set pressure tolerance 5% fail to open or keep open 16% have a liak rate issue above the spec so it is really important to uh even if safety Val we recognize doesn’t have an impact on the operation to improve your process when it’s run properly as soon as it fail the complete process has to be put on all it’s the process cannot run because it is part of the regulation to be protected by prv if the prv is not activate or is not uh install properly you have to stop this is part of the regulation so we get in the third part uh let us now present the product and the how we the test we we put all around this uh this new design so I said earlier this solution is especially developed for hydrogen refueling station so it’s only part of one simple business one single business uh the first thing is what about the service condition for hydrogen refueling station what what kind of pressure we can expect we can see we have two kind of pressure 550 bar and up 2,34 bar the pressure is tiggered the main reason is H2 shall pass through compressor then store on a compressed hydrogen storage tank before being supplied through a dispenser it’s part of the process as of today due to the low molecular weight High diffusibility we adopt spring-loaded valve due to its robust design what about the application code behind that we still comply with asme requirement so it means the set pressure tolerance will be plus or minus 3% the blowdown will be at 7% as the it is adjustable blowdown the over pressure can be over 10 16% if it is multiple valve scenario which is obviously the case regulation allow about all around hydrogen are quite new each country has its own regulation if you go in China they have a regulation in Europe as well uh we consider today uh regulation that has been developed by the installation classified for Environmental Protection the icpe and looking at that we have a it start to have a structure has been established for any hydrogen dispenser dispenser that has to operate at a pressure lower than 700 bar and with a total capacity should be below tr0 gram per s and it is clearly mentioned on that case such kind of design should be adopt the dispenser should be Protect by safety device like a thermal expansion Val like this so in term of solution we perform some so the issue on such kind of product is the cycling effect when you reach high pressure and the valve is discharging you have some pressure gradi so we perform some cycling effect it is also the true for dispenser uh we have different kind of dispenser we have to consider type four is for 700 bar it’s a composite line ER and uh the specificity of this design is we minimize the Dead Space to avoid hydrogen gas Pockets to reduce also the the stat the static fatigue we take the opportunity to just do a brief parenthesis to talk about liquid hydrogen even if today uh it’s not considered for hydrogen refilling station it could be a solution in the future uh as we said earlier you have a choice between provide high pressure or liquified the idea be being to reduce the volume of hydrogen to through dispenser to to supply hydrogen on hydrogen car um so again liquid hydrogen is not very new we we provide uh through air separator unit in 2012 2013 and we continue uh but the design should be we need to make some adjustments so to adopt some specific design adopting spacer so using spacers the IDE is to protect the spring spring has its own material if you cool down the spring you increase the stiffness and you modify the set point so that’s the reason spring should be protect and spacer should be adapt also we need to adopt a dry lubricant uh to avoid solidification on in the valve stream so it’s part of of uh consideration we adopt when we have to deal with liquid hydrogen or over any specific pure uh media um very briefly before hanging over Simon we will just go more in depth on this specific topic uh if we talk about prv we have to consider different kind of material category some of them has to be considered or pressure containing part this is the envelope what avoid hydrogen to escape directly to Atmosphere so we talk about the body the Bonet and the cap we also talk about the weighted part the part that are continuously exposed to hydrogen a valve is a normally closed device it means it’s not supposed to discharge continuously and we have a limited number of components that are weighted part this is true for the nozzle at Inlet and the dis these two parts are especially exposed to hydrogen attack and we can have very quickly a material property degradation of the nozzle uh the same Laboratories n perform a study during 10 year cycle cycle counts on such kind of material and at the end nozzle has been damaged so that’s the reason we have to pay attention on material selection uh mainly 316 L is prefer we cannot adopt highgrade uh food tensil material hard material due to un brighten issue but I will like Simon develop this uh but just before I will also introduce some over product uh as a Trillium group we can uh we can propose for as hydrogen solution to deal with hydrogen you might be on mute Simon yeah sorry guys okay so just although this um this webinar is is primarily focused on hydrogen and safety valves this is just to make the point that um Trillium has historically provided many other types of valves into hydrogen service this is as as basan said not a new thing for us um and thought we’d throw a couple of those up there and then just talk about some of the specific you know challenges with um handling hydrogen as a as a um a gas or or a liquid so this one here was a a Blake bar parallel slide gate valve uh for uh hot hydrogen service um and up to say around around 400 Fahrenheit 200 de CI uh we can supply these valves in a number of configurations and a number of different sizes um the the key thing to kind of note is the the ceiling conditions which Sebastian talked about earlier because we don’t want the hydrogen leaking out that’s a bad thing I go to the next slide and this one’s for cryogenic service these are these are generic um cross-sections by the way not not specific but they they give you an idea so again fully qualified for hydrogen service which is actually quite hard to do there are very some very specific things that are required in terms of validation of the materials to to avoid um degradation cracking that kind of thing again um very very stringent uh sealing conditions required and then if we want to talk about what do we actually need to do for design a hydrogen well it’s a pretty small molecule that’s that’s the first issue so yeah it likes to diffuse through stuff um that’s that’s it’s kind of modus operandi um hydrogen embroilment is a thing it primarily affects uh high strength Steels actually pipeline Steels are one of the the big concerns there um but there are po there are there is the potential to negatively affect other materials depending on the uh variables that you see there temperature pressure Etc um so this emment occurs at the molecular level it will reduce the ductility and over time you end up with cracks like you see there in the graphic below um that tends to be a bad thing because at some point you that that crack will grow and you’ll get a a rupture you know essentially a sudden failure and if it’s not picked up by ND um you routine nde that that would be a very a very bad uh situation next Slide the other thing is on the um the non-metallic parts of the valve um those those are ALS challenging again hydrogen being a small molecule it likes to diffuse into things um CO2 actually does does a has has a similar um propensity to do that and hydrogen blistering is a a common issue experience with polymers put into these kinds of services uh you can see there an example of an O-ring that originally was an O-ring and now isn’t an O-ring because it’s got multiple um blisters that have have occurred during during pressure cycling um obviously once it fails to do its job in sealing you you’re you now have potentially much higher levels of emissions which is something that we don’t want um there are polers that are better suited to hydrogen um PTFE is less sensitive um to friction and to swelling on hydrogen compared to EPDM or nit trial um there are caveats to to using that however um and it needs to be the design needs to be adapted appropriately for it to work um and and Achieve again the the the tightness that we’re we’re looking for and with that I’ll uh I’ll hand you back to Sebastian one more thing we we can add regarding this specific ag2 star solution is the connection connection is we know we also have to pay attention to connection because it’s can be source of leakage as well um so we adopt conen Fred solution as first because it’s off premium performance to handle high pressure even if as we can see there is some alternative that offer better performance in term of tightness and sismic but first we have to pay attention of this specific high pressure so as I explained uh we have to look at compromise here and the best compromise was to select con and fret solution um so we it’s good to have a dedicated product for that but it’s also better to to test it properly uh as we as we discussed earlier uh some valve might have to fail due to a wrong setting or or leakage issue so it’s part of our job or our daily job to to to deal with that and to test the valve properly as a asme manufacturer we we we have to meet some some requirement and we will take the opportunity to explain a part of our process to um in general and more specifically to deal with hydrogen services so it’s uh it’s different step here we have to separate safety function and performance in term of safety function regardless uh the product category it can be either spring or Pilot a pressure R is first a self-actuated product but has to be able to only meet two safety criteria to be open at set pressure and to relieve the capacity uh when we said open atet pressure it means not only one time but it has to be demonstrated at least free time so that’s the reason why we measure the valve set pressure we make the valve pop free time we make the pressure increase slightly uh we need to respect a certain pressure gradion and we make the valve open free time each time we re re check the value and um so the value is when you have this pressure drop from 150 500 to 500 and uh we check the five the free value that has been measured are within the set pressure tolerance that has been defined as a asme section 13 it is between plus and minus 3% if you succeed you can go to the next step for hydrogen we did we not only perform the the test on air but we also we can also perform the test in alium uh first because alium is a thin molecule as well which is quite close to hydrogen so we reproduce the current scenario we also use the helium to measure the the to perform leak tightness helium can be ever used in uh home temperature but we can also use it for to to simulate cryogenic condition so in s we we are also equipped with a cryogenic test bench it’s a boil off so it means the process itself is cooled down to reproduce the the actual um process condition with the difference we here use nitrogen so the temperature is not so low it’s not a minus for hydrogen the boiling point is minus 253 we reach minus 196 degre Celsius it’s part of the challenge to be able to test the valve on the value which are lower than that uh using alum for example with the boiling point is minus 269 de C but we have to use a specific Laboratory Testing on that case but on that case for the moment in house what we can do is we use uh nitrogen liquid nitrogen to push on on the on the alium gas which is localized on the top side of the vessel to make the valve open in alium and to perform also helium testing for leakage so leak leaktite test so leaktite is is the part of um of the process if you succeed to um to set pressure test in this video as you can see we have also some valve biot vales not only thermal expansion that has been qualified for a cogenic application as well which is largely largely use for flg industry but it’s a separate topic so uh the next step is uh to measure the seat tightness so by seat tightness it’s um on that case we follow API standard 5 27 it’s a guideline by guideline it means we can supersede API standard 527 it’s uh if we follow the process the process explain how to perform the test so for example on that case we talk about the valve with a set point is 550 we have as a minimum to perform the test at 90% of the set pressure this part of this guideline but on that case we raise a bar we test the valve up to 95 even up to 535 bar as you can see on this video the Val is tight at 535 so it’s uh it’s higher than 95% 95% is the rante what we rantee now so we stabilize the pressure we make the pressure increase from Z to 555 44 35 sorry we stabilize the pressure and we me we we put the blind flange at the outlet and we make sure we have zeroel this is part of the apri requirement when we have to use a soft seat Z is acceptable for a minimum duration on that case it’s a one minute and on if again this is part of the process to comply with API requirement for seat tightness at Inlet we also perform something similar at Outlet measuring the potential leak rate through the pressure containing part by pressure containing part it means uh including the body Bonet bolting connection the body nozzle connection body adjusting through connection also we check the body cap connection on top side and the valve inet Outlet as well for that we use a specific device a sniffer because the particle are so thin we have to use it so triom criteria are even more stringent or basic customer requirement which is about 10 -4 Pascal cubic meter per second that represent one bubble per minute if we have to compare um again the last part but not the less important is uh we are dealing with pure gas pure process um it’s something Trum used to deal with not only for hydrogen but also for oxygen service application but are more or less the same um when we have to deal with New Market we won’t reinvent the wheel it’s not only true for Trillium but it is regarding the applicable standard one of them which is recognized is the CGA 4.1 for it is a standard that it is internationally harmonized publication and it is references by the National Fire Protection Association the nfba this describes the cleaning method and requirement for equipment used in the production storage distribution and use of liquid and Gaz cision to reduce the risk of fire explosion or promotion of combustion so it is something which is clearly recognized and um we follow this method to deal with hydrogen part of the process is to have um a new area to handle acid cleaning uh and to separate as as well carbon steel and stainless steel material to avoid impurity even if we said for hydrogen we only deal with stainless steel valve it can happen we have to to handle different kind of of um purchase order different kind of application and on that case we don’t mix both but the most important uh so we have cleaning at any stage acid cleaning is part of them uh we also uh have a new a completely new right room uh where we pay attention on all the device that all install it means the test bench are degrees all the machine and tools but are used are completely degreased and this cleaning room has a restricted Access employee who get in there has also specific equipment specific clothes so part clean before assembly then we also use specific lubri lubricant during assembly and after assembly after testing the complete Val is put either on the we can also consider double seal welded pocket with intermediate desant if required to make sure the valve keep a perfect tightness from shipment to a customer site so it’s uh it’s a method we put in place with a dedicated employee that has been trained to follow this process and to support that we also use a specific non-destructive examination so white white is the first level but we also use a white and black light inspection on this dedicated area uh using Wood Lamp we know we know arrive to the Q&A session so just uh just before as a summary we just want to remind you in a brief some headline regarding the customer concern so here the main challenge is we have to deal for the moment with gas hydrogen at quite high pressure uh where we have to use a specific connection specific uh process to clean to make the to clean the valves to avoid um ignition or to reduce the flammable risk we also have to because it’s a pure hydrogen we also have to to reduce any risk of leakage to reduce uh greenhouse gas emission indirectly even if it is a green hydrogen and because we drive we talk about hydrogen refueling station so it’s automotive industry we need to to make it run 24hour by seven so maintenance is very important to have solution to quickly replace or offer a product which is pre premium at a reasonable price uh to meet this customer requirement we develop specific feature um a block uh a small Thal expansion valve robust design with a reduced de Space full stainless steel 316 L design um that that could be tested and uh and adjust by uh qualified operator what the consequence but What’s the total potential value of this combination between customer needs and feature we put in place first we meet the market demands and the associated the local regulation whether in France or uh oversea um depending on the territory and the and the and the policy that has been put in place the fine as you can can be potentially crazy expensive the Gap is significant but it also depend on the on the tolerance the local regulation put in place and as I said earlier uh keep in mind even if prv industry it’s true it doesn’t have any impact on your on your process this said it’s partially wrong because we meet we we rantee a very high tightness and the pressure is the maker the higher pressure the better performance you can expect and to reach 95% of tightness um 95% of the set pressure has a as a tightness as a operating pressure as well that will have a positive impact on on the total process we said when it is done and it is a challenge for for for spring loed D but when it is done as long as the prv work doesn’t have any impact on your process the drawback is if we have the prv that stay in open position or start to leak then you have to stop the complete process so that’s part of the the issue and that has a significant drawback that could have a significant drawback in case you you have a maintenance outage from 10,000 to 40 key per day so having this robust design will help you to solve that and uh well again we won’t repeat but spring loed is a robust design but offer relability so but doesn’t have any any price for that so we arrive at the end of this station uh don’t hesitate to to visit our virtual trade show or I assignment said earlier to to scan the QR code to get a quick access to our YouTube page where we have not thousand but close to 100 webinar s now uh relative to safety valve sizing or fast track valve solution for fpso application some much quite interesting not much more but quite interesting topic as well uh we could that that that could catch your attention thanks all right thank thanks Sebastian so um just again a reminder this is kind of your last chance if you have a question after listening to all that please put it in the Q&A box uh that said we have a few questions here I’ll kind of start at the top um so the first question is uh for safety valves do you recommend a rupture disc to avoid leakages thank you do you want to take that one yes uh of course it’s uh it’s better so uh to um to uh to just give you a brief overview safety valve can be first combined with rupture dis no issue about that rupture dis it’s a non reclosing device it means when the this disc burst but you need to replace it so indirectly uh you increase your maintenance cost because you have to pay for rtor disc replacement so it’s not a good idea if you want to consider a very high operating pressure because the risk to have um the riptor dis burst is quite high and if you have to replace riptor dis again and again uh it doesn’t help now we said riptor dis is on off if it’s tight it’s 100% tight no lickage but it can only be adopt is if your operating pressure is quite far otherwise you have to disassemble repair the dis so it doesn’t make resent so it can be uh but it need to be select with a cous and most of time it is Select when you don’t have any pressure pick and you have you have operating pressure which is uh far from your opening uh and most of time when riptor disc open immediately the valve open just after the only difference is you have maintenance on the on a rure dis it is a solution which is mainly used on the pharmaceutical industry where finally you operate at the lowest pressure uh for rtor disc operating at 10,000 bar it will have um it’s it can be considered but uh it’s uh it’s not happen yet and again well on this kind of solution we offer premium performance in term of tightness another drawback you have to consider for riptor dis is due to the fact rure disc can potentially not be fully open we have to oversize the safety valve um to consider a 10 10% dirity coefficient Factor it means you will also indirectly increase the volume so the potential hydrogen gas uh retention so it’s something we have to consider twice before adopting a Rapture dis for the moment it’s not the solution we have or discussion we have with our customer okay thanks Sebastian so the next question um relates to I was checking as you were talking it relates to slide 18 where you um you talked about the the height the H2 star um and question is on one of the slides slide 18 um it had an over pressure of um 10% or or um2 yeah yeah sorry get out no yeah the over pressure 10% or 0.2 bar was written on there um and the question is which which one to use um you know I guess is what the questioner is looking for okay uh it’s not uh it’s not part of a product specification it’s part of of the standard the codee we have to follow so 0.2 bar is when you have to consider a low pressure but as we highlight during this webinar it’s for high pressure 550 bar th000 bar so it’s we will consider 10% whichever is higher so it’s 10% that has to be consider if and we also demonstrate it’s a pop action valve at the end and uh 10% is again the minimum which is required by asme to move from with start to open and Bam it reach its open position it’s open position but to make this transition we need to generate 10% over pressure some customer and it is the strategy we recognize it’s a strategy uh asked to have a lower uh over pressure potentially to increase operating it’s not the the right approach it’s strictly forbidden in any case to have a set pressure higher than the design pressure when we have single single valve scenario so if if the design is if the design pressure is limited at 10,000 bar the set pressure cannot be higher than 10,000 bar now if the question behind that is to demonstrate the valve can be fully open at at 5% it is forbidden as per ASM code to address the European the European regulation the pressure equipment directive we can perform some test and demonstrate the valve is fully open at 5% of a pressure it is authorized in Europe forbidden in us so as I explained depending on the territory uh the N end user Market segment what kind of temp is expected on the prv it has to be considered uh Key by keys right thanks thanks Sebastian so next question we have is uh the question says I’ve seen that there are many different government and Industry initiatives for hydrogen that’s true um how can tril help me identify the appropriate type of valve to specify for my application so I I think I’ll I’ll take that one and just talk to it briefly so we can get to the the last question we have here um okay so as as you saw there are a number of andian talked it there are a number of eving codes um as as the use of hydrogen evolves and and we’re looking at different applications and different methods of storage transportation manufactur of hydrogen Etc um so just you know just to be clear um trillum trillum does not make commodity valves that’s not what you know where we add value where we add value is the examples that that Sebastian showed and I showed where you know the customer comes to says okay here’s my process here’s what I need to do uh you know what do I need to be considering here you know from a from a safety aspect from a code aspect uh Etc from a from a design and reliability aspect and we’ll we’ll happily work with them to develop um and specify what that would be considering all of the emerging specifications and codes that that that we do monitor very very closely and that’s the value that you’re getting with working with us on this whatever the application would be and I have no doubt there will be new applications and new requirements that will will will um emerge in the future as as we go through this this rather interesting period of energy transition so hopefully that answered that question um the last one that I have here is a question it’s nice short one it says uh do you supply spares and service for the H2 star valve the one you were talking about yes uh good question we can of course now as I explained earlier we address a specific Market which is um automotive industry uh hydrogen core and uh it need to have a quick turnaround and because we have to deal with some specific process uh we as soon as we apply by a specific stamp we demonstrate as a manufacturer we have all capability to adjust the Val setting and to perform the associated test uh about that it can take time it can take time to identify the root cause uh of failure if we have or to supply some spars and we are talking about a small valve where we identify the market the pressure the the the pressure class the material so we put in place a dedicated stock to address specifically this market and to ensure a quick turnaround and it’s it’s a good deal at the end to to work hand hand hand by hand on hand and uh in part in right partnership with customer and to propose a complete valve replacement uh to address this specific market so we can do both but at the end the the deal is to offer also a dedicated inventory stock to um to have a quick shift in case if it is needed on this on this that’s the right that’s the right answer we propose yeah and I think it’s worth noting these are these are valves for for safety critical applications typically and as Sebastian laid out there are a number of very specific processes that are used in the in the testing um and cleaning packaging of the valves and sending out you know a bunch of spare parts you have you know we’re essentially have no Assurance of how those are going to be put together so that’s something to think about you know you you know talking about very you know you know stuff you should be controlling if you want to be successful all right so we’re reach the end of the questions thank you all for your attendance um I appreciate your time out of your day to to to do so hopefully you found it useful um you can rewatch this if You’ missed part of it at um the Trillium YouTube website where it should be available within a couple of days so with that we’ll close the webinar and thank you