natgillin/translations-raw huggingface dataset:
Compatibility with heat exchange fluid
Vnaprej določeni tlak pretoka mora v kratkem časovnem intervalu ostati nespremenjen, dokler se odčitki instrumentov ne stabilizirajo.
Leakage tests shall have to be conducted with pressurised gas like air or nitrogen.
Odčitki merilnika tlaka pretoka, manometra za merjenje razlike tlakov in indikatorja temperature tekočega zraka se zabeležijo sočasno.
Water or another fluid may be used to obtain the required pressure for the hydrostatic strength test.
Tlak se nato znižuje, dokler ni več izpusta iz ventila.
All test values shall indicate the type of test medium used, if applicable.
Tlak, pri katerem se to zgodi, se zabeleži kot porušitveni tlak ventila.
The test period for leakage and hydrostatic strength tests shall be not less than 1 minute.
Iz zabeleženih podatkov in znanega koeficienta odprtine merilnika pretoka se izračuna zračna pretočnost razbremenilnega ventila po naslednji enačbi:
All tests shall be performed at a room temperature of 20 °C ± 5 °C, unless otherwise stated.
Q pretočnost razbremenilnega ventila, v m3/min zraka pri absolutnem tlaku 100 kPa in 15 °C;
Overpressure test under hydraulic conditions
osnovni koeficient odprtine merilnika pretoka pri absolutnem tlaku 100 kPa in 15 °C;
A LPG containing component shall withstand without any visible evidence of rupture or permanent distortion a hydraulic test pressure which is determined by Table 1 (of 2,25 times the maximum classification pressure) during minimal 1 minute with the outlet of the high pressure part plugged.
HUF temperaturni koeficient tekočega zraka za pretvorbo zabeležene temperature v izhodiščno temperaturo 15 °C:
The samples, previously subjected to the durability test of paragraph 9 of this annex are to be connected to a source of hydrostatic pressure.
h diferenčni tlak v odprtini števca, v kPa;
A positive shut-off valve and a pressure gauge, having a pressure range of not less than 1,5 times nor more than 2 times the test pressure, are to be installed in the hydrostatic pressure supply piping.
p tlak tekočega zraka za razbremenilni ventil, v kPa absolutnega tlaka (izračunani manometrski tlak, skupaj z izračunanim barometričnim tlakom);
Table 2 shows the classification pressure and the pressures to be used in the overpressure test according to the classification:
imenovalec za pretvorbo enačbe iz m3/uro v m3/min.
Classification of component
Povprečna pretočnost treh razbremenilnih ventilov, zaokrožena na najbližjih pet enot, se upošteva kot pretočnost ventila posebne velikosti, oblike in nastavitve.
Classification pressure [kPa]
Ponovno preverjanje tlaka na začetku izpuščanja goriva in ob ponovni zatesnitvi razbremenilnih ventilov – preskus št. 3
Hydraulic test pressure for over-pressure test [kPa]
Po preskusih pretočnosti tlak razbremenilnega ventila na začetku izpuščanja goriva ne sme biti manjši od 85 % in tlak ob ponovni zatesnitvi ne sme biti manjši od 80 % tlaka, izmerjenega na začetku izpuščanja goriva in ob ponovni zatesnitvi, v skladu s preskusom št. 1 iz odstavka 10.1.2.
2,25 WP
Ti preskusi se izvedejo približno 1 uro po preskusu pretočnosti in preskusni postopek mora biti enak, kot je opisano v preskusu št. 1 iz odstavka 10.1.2.
3000 or WP
Preskus delovanja prelivnega ventila
6750 or 2,25 WP
Prelivni ventil deluje pri največ 10 % nad in najmanj 20 % pod nazivno končno pretočnostjo, ki jo določi proizvajalec, in se samodejno zapre pri razliki tlakov v ventilu, manjši od 100 kPa, med preskusi delovanja, opisanimi v nadaljevanju.
External leakage test
Ti preskusi se izvedejo na treh vzorcih vsake velikosti in oblike ventila.
A component shall be free from leakage through stem or body seals or other joints, and shall not show evidence of porosity in casting when tested as described in paragraph 5.3 below at any aerostatic pressure between 0 and the pressure shown in Table 3.
Ventil, ki je namenjen samo za uporabo s tekočino, se preskusi z vodo, sicer se preskusi izvedejo z zrakom in vodo.
The above prescriptions are deemed to be satisfied, if the provisions of paragraph 5.4 below are met.
Ločeni preskusi se izvedejo na vsakem vzorcu, nameščenem v navpičnem, vodoravnem in prevrnjenem položaju, razen v primerih, določenih v odstavku 10.2.3.
The test shall be performed at the following conditions:
Preskusi z zrakom se opravijo brez cevi ali druge omejitve, priključene na izhodno odprtino preskusnega vzorca.
At room temperature;
Ventil, namenjen namestitvi v enem položaju, se lahko preskuša samo v tem položaju.
At the minimum operating temperature;
Preskus z zrakom se izvede z uporabo pravilno oblikovanega in umerjenega merilnika pretoka odprtine s prirobnico, priključenega na vir dovoda zraka z ustrezno veliko prostornino in tlakom.
At the maximum operating temperature.
Preskusni vzorec se priključi na izhod merilnika pretoka.
The maximum and minimum operating temperatures are given in the annexes.
Manometer ali umerjeni merilnik tlaka z odčitki po korakih največ 3 kPa se namesti pred preskusni vzorec za prikaz tlaka zapiranja.
During this test the equipment under test (EUT) will be connected to a source of aerostatic pressure (of 1,5 times the maximum pressure and in the case of a Class 3 component, 2,25 times the maximum classification pressure).
Preskus se izvede s počasnim povečevanjem pretoka zraka skozi merilnik pretoka, dokler se kontrolni ventil ne zapre.
A positive shut-off valve and a pressure gauge having a pressure range of not less than 1,5 times nor more than 2 times the test pressures are to be installed in the pressure supply piping.
V trenutku zapiranja se zabeleži razlika tlakov v merilniku pretoka odprtine in tlak zapiranja, ki ga prikaže merilna naprava.
The pressure gauge is to be installed between the positive shut-off valve and the sample under test.
Nato se izračuna stopnja pretoka ob zapiranju.
While under the applied test pressure, the sample should be submerged in water to detect leakage or any other equivalent test method (flow measurement or pressure drop).
Uporabijo se lahko druge vrste merilnikov pretoka in drugi plini, ki niso zrak.
The classification and leakage test pressures according to the classification
Preskus z vodo se izvede z uporabo merilnika pretoka tekočin (ali enakovrednega merilnika), nameščenega v sistem cevi z zadostnim tlakom za zagotovitev potrebnega pretoka.
Classification pressure
Sistem mora vključevati vhodni piezometer ali cev, ki je najmanj za eno velikost cevi večja od ventila, ki se preskuša, s kontrolnim ventilom pretoka, priključenim med merilnikom pretoka in piezometrom.
Test pressure for leakage test
Gibka cev ali hidrostatični razbremenilni ventil ali oba se lahko uporabita za zmanjšanje učinka tlačnega sunka, ko se prelivni ventil zapre.
1,5 WP
Preskusni vzorec se priključi na izhodni konec piezometra.
The external leakage shall be lower than the requirements stated in the annexes or, if no requirements are mentioned, the external leakage shall be lower than 15 cm3/hour with the outlet plugged, when submitted to a gas pressure equal to the leakage test pressure.
Manometer ali umerjen merilnik tlaka tipa zakasnitve, ki bosta omogočila vrednosti v razponu od 0 do 1440 kPa, se priključi na odvod tlaka pred preskusnim vzorcem za prikaz tlaka zapiranja.
High temperature test
Z dolžino gumijaste cevi se vzpostavi povezava med merilnikom tlaka in odvodom tlaka, z ventilom, nameščenim na vhod merilne naprave, da se omogoči izločanje zraka iz sistema.
A LPG containing component shall not leak more than 15 cm3/hour with the outlet plugged when submitted to a gas pressure at maximum operating temperature, as indicated in the annexes, equal to the leakage test pressure (Table 3, paragraph 5.3 above).
Pred preskusom se kontrolni ventil pretoka nekoliko odpre, pri čemer je odjemni ventil merilnika tlaka odprt, da se izloči zrak iz sistema.
The component shall be conditioned for at least 8 hours at this temperature.
Odjemni ventil se nato zapre in izvede se preskus s počasnim povečevanjem pretoka, dokler se kontrolni ventil ne zapre.
Low temperature test
Med preskusom se merilnik tlaka namesti na enaki višini kot preskusni vzorec.
A LPG containing component shall not leak more than 15 cm3/hour with the outlet plugged when submitted to a gas pressure, at the minimum operating temperature (– 20 °C), equal to the leakage test pressure (Table 3, paragraph 5.3 above).
V trenutku zapiranja se zabeležita stopnja pretoka in tlak zapiranja.
Seat leakage test
Ko prelivni ventil zapre dovod goriva, se zabeleži stopnja puščanja ali stopnja obvodnega pretoka.
The following tests for seat leakage are to be conducted on samples of service valve or filling unit which have previously been subjected to the external leak test of paragraph 5 above.
Prelivni ventil, ki se uporablja v polnilni enoti, se samodejno zapre, če je razlika tlakov med preskušanjem manjša od 138 kPa, kot je opisano spodaj.
Seat leakage tests are conducted with the inlet of the sample valve connected to a source of aerostatic pressure, the valve in the closed position, and with the outlet open.
Ti preskusi se izvedejo na treh vzorcih vsake velikosti ventila.
A positive shut-off valve and a pressure gauge having a pressure range of not less than 1,5 times nor more than 2 times the test pressures are to be installed in the pressure supply piping.
Preskusi se izvedejo z zrakom, ločeni preskusi pa se izvedejo na vsakem vzorcu, nameščenem navpično in vodoravno.
While under the applied test pressure, observations for leakage are to be made with the open outlet submerged in water unless otherwise indicated.
Preskusi se izvedejo, kot je opisano v odstavkih 10.2.4 do 10.2.7, s cevno priključno napravo polnilne enote, priključeno na preskusni vzorec, in z zgornjim protipovratnim ventilom v odprtem položaju.
Conformance with paragraphs 8.2 to 8.8 below is to be determined by connecting a length of tubing to the valve outlet.
Preskus hitrosti polnjenja
The open end of this outlet tube is to be located within an inverted graduated cylinder which is calibrated in cubic centimetres.
Preskušanje nemotenega delovanja naprave za omejitev ravni polnjenja posode se izvede s hitrostmi 20, 50 in 80 l/min ali do največje stopnje pretoka pod absolutnim nasprotnim tlakom 700 kPa.
The inverted cylinder is to be closed by a water seal.
Preskus vzdržljivosti za omejevalnik polnjenja
The apparatus is to be adjusted so that:
Naprava za omejevanje ravni polnjenja posode mora vzdržati 6000 celotnih ciklov polnjenja do najvišje ravni polnjenja.
the end of the outlet tube is located approximately 13 mm above the water level within the inverted graduated cylinder; and
Na vsaki napravi, ki omejuje raven polnjenja posode in deluje s plovcem, potem ko so bili na njej izvedeni preskusi za potrditev, da:
the water within and exterior to the graduated cylinder is at the same level.
omeji raven polnjenja posode pri 80 % njene prostornine ali manj;
With these adjustments made, the water level within the graduated cylinder is to be recorded.
ne omogoča – pri zaprtem dovodu – polnjenja posode pri več kot 0,5 litrov/minuto,
With the valve in the closed position assumed as the result of normal operation, air or nitrogen at the specified test pressure is to be applied to the valve inlet for a test period of not less than 2 minutes.
se izvede eden od preskusnih postopkov iz odstavka 10.5.5 ali 10.5.6 za zagotovitev, da je naprava konstruirana tako, da je odporna proti pričakovanim dinamičnim vibracijskim obremenitvam, in za zagotovitev, da delovno vibracijsko okolje ne povzroča nepravilnega delovanja ali okvar.
During this time, the vertical position of the graduated cylinder is to be adjusted, if necessary, to maintain the same water level within and exterior to it.
Preskus z vibracijami
At the end of the test period and with the water within and exterior to the graduated cylinder at the same level, the level of water within the graduated cylinder is again recorded.
Oprema in namestitvene tehnike
From the change of volume within the graduated cylinder, the leakage rate is to be calculated according to the following formula:
Preskušanec se pritrdi na vibracijsko opremo z običajnimi načini pritrditve, bodisi neposredno na vzbujalnik vibracij ali tabelo prehodov, bodisi z nosilno napravo z zmogljivostjo prenosa določenih vibracijskih pogojev.
Where:
Oprema, ki se uporablja za merjenje in/ali zapis pospeška ali amplitude in frekvence, omogoča najmanj 10-odstotno natančnost izmerjene vrednosti.
leakage rate, cubic centimetres of air or nitrogen per hour.
Izbira postopka
increase in volume within graduated cylinder during test.
Glede na izbiro homologacijskega organa se preskusi izvedejo v skladu s postopkom A, opisanim v odstavku 10.5.5, ali postopkom B, opisanim v odstavku 10.5.6.
t time of test, minutes.
Vzdolž vsake od treh pravokotnih osi preskušanca se izvedejo naslednji preskusi:
P barometric pressure during test, in kPa.
Postopek A
T ambient temperature during test, in K.
Iskanje resonance
Instead of the method described above, leakage may be measured by a flowmeter installed on the inlet side of the valve under test.
Resonančne frekvence omejevalnika polnjenja se določijo s počasnim spreminjanjem frekvence uporabljene vibracije v določenem razponu pri znižanih preskusnih vrednostih, vendar z zadostno amplitudo za vzbujanje preskušanca.
The flowmeter shall be capable of indicating accurately, for the test fluid employed, the maximum leakage flow rates permitted.
Iskanje sinusoidne resonance se lahko izvede z uporabo preskusne vrednosti in časa cikla, določenih za ciklični tlačni preskus, pod pogojem, da je čas iskanja resonance vključen v čas cikličnega tlačnega preskusa iz odstavka 10.5.4.3.
The seat of a shut-off valve, when in the closed position, shall be free from leakage at any aerostatic pressure between 0 to 3000 kPa or from 0 to WP in accordance with the classification pressure of the valve.
Preskus z resonančnim vzbujanjem
A non-return valve provided with a resilient seat, when in the closed position, shall not leak when subjected to any aerostatic pressure between 50 and 3000 kPa.
Preskušanec se za 30 minut izpostavi vibracijam vzdolž vsake osi pri najnatančnejših resonančnih frekvencah, določenih v odstavku 10.5.5.1.
A non-return valve provided with a metal-to-metal seat, when in the closed position, shall not leak at a rate exceeding 0,50 dm3/hour when subjected to an inlet pressure up to the test pressure according to Table 3 in paragraph 5.3 above
Preskusna vrednost je 1,5 g (14,7 m/sek2).
The seat of the upper non-return valve used in the assembly of a filling unit, when in the closed position, shall be free from leakage at any aerostatic pressure between 50 and 3000 kPa.
Če so ugotovljene več kot štiri resonančne frekvence za katero koli os, se za ta preskus izberejo najnatančnejše resonančne frekvence.
The seat of a service coupling, when in the closed position, shall be free from leakage at any aerostatic pressure between 0 to 3000 kPa.
Če pride med preskusom do spremembe resonančne frekvence, se zabeleži čas njenega pojava, nato pa se frekvenca takoj prilagodi, da se ohrani resonančni vrh.
The gas-tube pressure relief valve shall not have internal leakage up to 3000 kPa or up to WP, in accordance with the classification pressure of the valve.
Končna resonančna frekvenca se zabeleži.
The pressure relief valve (discharge valve) shall not have internal leakage up to 2600 kPa.
Celoten čas preskusa vzbujanja se vključi v zahtevani ciklični tlačni preskus iz odstavka 10.5.4.3.
Endurance test
Določeni čas preleta je čas naraščajočega in padajočega preleta.
A filling unit or service valve shall be capable of conforming to the applicable leakage test requirements of paragraphs 5 and 8 above, after being subjected to a number of cycles of opening and closing as mentioned in the annexes to this Regulation.
10.5.5 Postopek B
A shut-off valve is to be tested with the valve outlet plugged.
Preskus se izvede na sinusoidni vibracijski površini s stalnim pospeškom 1,5 g in frekvencami med 5 in 200 Hz.
The valve body filled with n-hexane, and the valve inlet subjected to a pressure of 3000 kPa or of WP in accordance with the classification pressure of the valve.
Preskus traja 5 ur za vsako od osi iz odstavka 10.5.4.
An endurance test is to be conducted at a rate not faster than 10 times per minute.
Amplitude vibracij za vsak pas so naslednje: Amplituda v mm (vršna vrednost)
For a shut-off valve, the closing torque is to be consistent with the size of handwheel, wrench, or other means employed to operate the valve.
Če se preskus ne izvede z uporabo površine s stalnim pospeškom, mora biti frekvenčni pas od 5 do 200 Hz razdeljen na 11 poloktavnih pasov, od katerih so vsi zajeti v konstantno amplitudo, tako da je teoretični pospešek med 1 in 2 g (g = 9,8 m/sek2).
The appropriate tests for external and seat leakage, as described under external leakage test under paragraph 5 above and seat leakage test under paragraph 8 are to be conducted immediately following the endurance test.
Frekvenca v Hz (za pospešek = 1 g) Frekvenca v Hz (za pospešek = 2 g)
Endurance for 80 per cent stop valve
Vsak pas je 2 minuti pokrit v obeh smereh, skupaj 30 minut za vsak pas.
The 80 per cent stop valve shall be capable to withstand 6000 complete filling cycles to the maximum filling degree.
Specifikacije
Endurance test for pressure regulator and vaporiser
Ko se na napravi izvede eden od zgoraj opisanih preskusnih postopkov z vibracijami, na njej ne sme biti mehanskih poškodb in šteje se, da izpolnjuje zahteve preskusa z vibracijami samo v primeru, če vrednosti njenih značilnih parametrov:
The regulator shall be able to withstand 50000 cycles without any failure when tested according to the following procedure:
raven polnjenja pri zaprtem dovodu,
Recycle the regulator for 95 per cent of the total number of cycles at room temperature and at the classification pressure.
stopnja polnjenja, dovoljena pri zaprtem dovodu,
Each cycle shall consist of flow until stable outlet pressure has been obtained, after which the gas flow shall be shut off by a downstream valve within 1 s, until the downstream lock-up pressure has stabilised.
ne presegajo predpisanih omejitev in ne presegajo za več kot 10 % vrednosti pred preskusnim postopkom z vibracijami.
Stabilised outlet pressures are defined as set pressure ± 15 per cent for at least 5 s.
Preskus združljivosti z UNP za sintetične materiale
Cycle the inlet pressure of the regulator for 1 per cent of the total number of cycles at room temperature from 100 per cent to 50 per cent of the classification pressure.
Sintetični del, ki je v stiku s tekočino UNP, ne sme izkazovati prevelike spremembe prostornine ali zmanjšanja teže.
The duration of each cycle shall be no less than 10 s.
največja sprememba prostornine 20 %;
Repeat the cycling procedure listed in subparagraph (a) at 120 °C at the classification pressure for 1 per cent of the total number of cycles.
Kovinski sestavni del z UNP mora izpolnjevati zahteve preskusov tesnjenja iz odstavkov 4, 5, 6 in 7, potem ko je bil 144 ur izpostavljen preskusu s slano meglo v skladu s standardom ISO 9227 in z zaprtimi priključki.
Repeat the cycling procedure listed in subparagraph (b) at 120 °C at the classification pressure for 1 per cent of the total number of cycles.
Ali neobvezni preskus:
Repeat the cycling procedure listed in subparagraph (a) at – 20 °C and 50 per cent of classification pressure for 1 per cent of the total number of cycles.
Kovinski sestavni del z UNP mora izpolnjevati zahteve preskusov tesnjenja iz odstavkov 4, 5, 6 in 7, potem ko je bil izpostavljen preskusu s slano meglo v skladu z IEC 68-2-52 Kb: preskus slane pršilne megle.
Repeat the cycling procedure listed in subparagraph (b) at – 20 °C and 50 per cent of classification pressure for 1 per cent of the total number of cycles.
Preskusni postopek:
At the completion of all tests indicated in subparagraphs (a), (b), (c), (d), (e) and (f), the regulator shall be leak proof as described under external leakage test under paragraph 5 above, at the temperatures of – 20 °C, at the room temperature and at the temperature of + 120 °C.
Pred preskusom se sestavni del očisti v skladu z navodili proizvajalca.
Operational tests
Vsi priključki so zaprti.
Operation test of the (gas-tube) pressure relief valve
Med preskusom sestavni del ne deluje.
In the case of pressure relief valves, three samples of each size, design, and setting are to be used for start-to-discharge and resealing pressure tests.
Nato se sestavni del 2 uri izpostavlja razprševanju s solno raztopino, ki vsebuje 5 % NaCl (masni delež) z manj kot 0,3 % kontaminacije in 95 % destilirane ali demineralizirane vode pri temperaturi 20 °C.
This same set of three valves is to be used for flow capacity tests for other observations indicated in the following paragraphs.
Po razprševanju se sestavni del 168 ur hrani pri temperaturi 40 °C in relativni vlažnosti 90–95 %.
Not less than two successive start-to-discharge and resealing pressure observations are to be made on each of the three test valves under test No 1 and 3 of paragraphs 10.1.2 and 10.1.4 below.
To zaporedje se ponovi štirikrat.
Start-to-discharge and resealing pressures of pressure relief valves — test No 1
Po preskusu se sestavni del očisti in eno uro suši pri temperaturi 55 °C.
Before being subjected to a flow capacity test, the start-to-discharge pressure of each of three samples of a pressure relief valve of a specific size, design, and setting shall be within + 3 per cent of the average of the pressures, but the start-to-discharge pressure of any one of the three valves shall be not less than 95 per cent, not more than 105 per cent, of the set pressure marked on the valve.
Sestavni del se pred nadaljnjim preskušanjem 4 ure kondicionira na referenčne pogoje.
The resealing pressure of a pressure relief valve before being subjected to a flow capacity test shall be not less than 50 per cent of the initially observed start-to-discharge pressure.
Bakren ali medeninast sestavni del z UNP mora izpolnjevati zahteve preskusov tesnjenja iz odstavkov 4, 5, 6 in 7, potem ko je bil 24 ur potopljen v amoniaku v skladu s standardom ISO 6957 in zaprtimi vsemi priključki.
A pressure relief is to be connected to an air or other aerostatic supply source capable of being maintained at a pressure of at least 500 kPa effective pressure above the marked set pressure of the valve being tested.
Preskus je treba izvesti v skladu s standardom ISO 188.
A positive shut-off valve and a pressure gauge having a pressure range of not less than 1,5 times nor more than 2 times the test pressure are to be installed in the pressure supply piping.
Preskušanec mora biti 168 ur izpostavljen zraku s temperaturo, enako najvišji obratovalni temperaturi.
The pressure gauge is to be installed in the piping between the valve being tested and the positive shut-off valve.
Dovoljena sprememba natezne trdnosti ne sme presegati + 25 %.
Start-to-discharge and resealing pressure are to be observed through a water seal not over 100 mm in depth.
Dovoljena sprememba končnega raztezka ne sme presegati naslednjih vrednosti:
After recording the start-to-discharge pressure of the valve, the pressure is to be increased sufficiently above the start-to-discharge pressure to ensure unseating of the valve.
največje povečanje 10 %,
The shut-off valve is then to be closed tightly and the water seal, as well as the pressure gauge, are to be observed closely.
največje zmanjšanje 30 %.
The pressure at which bubbles through the water seal cease is to be recorded as the resealing pressure of the valve.
Preskus je treba izvesti v skladu s standardom ISO 1431/1.
Flow capacity of pressure relief valves — test No 2
Preskušanci, katerih raztezek mora znašati 20 %, se za 72 ur izpostavijo zraku s temperaturo 40 °C in koncentracijo ozona 50 delcev na 100 milijonov.
The flow capacity of each of three samples of a pressure relief valve of a specific size, design, and setting shall fall within a range of 10 per cent of the highest observed capacity.
Razpoke na preskušancih niso dovoljene.