Tiêu chuẩn iso 12614 19 2017

© ISO 2017 Road vehicles — Liquefied natural gas (LNG) fuel system components — Part 19 Automatic valve Véhicules routiers — Composants des systèmes d’alimentation en gaz naturel liquéfié (GNL) — Part[.]

Road vehicles — Liquefied natural gas

Part 19:

Vé icule s ro tiers — Comp sant de s système s d’alimentation en g z

n ture l liqu fié (GNL) —

Partie 19: Valve a tomatique

Fir t edition

2 17-0

Refer ence n mb r

ISO 1 614-1 :2 17(E)

COPYRIGHT PROTECTED DOCUMENT

© ISO 2017, P blshed in Sw itz rlan

A ll rig hts r eserved Unles otherw ise spe ified, nopar of this p blc tion ma y be r epr od c d or utilz d otherw ise in an form

or b an me ns, ele tr onic or me hanic l, inclu in p oto opying , or postin on the internet or an intranet , w ithout prior

written permis ion Permis ion c n be req esed from either ISO at the ad r es below or ISO’s member bod y in the c u try of

the r eq eser

ISO c pyrig ht ofic

C de Blan on et 8 • C 4 1

CH-1 14 Vernier, Geneva, Switzerlan

Tel + 12 7 9 011

Fax 412 7 9 0 4

c pyrig ht@iso.or g

www.iso.or g

F reword i v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 Mar king 2

5 Co str uctio and as embl y 2

6 Test 2

6.1 A pplca i ty 2

6.2 Hydr ostatic str eng th 3

6.3 Leakag e 3

6.4 Contin ed o eration 3

6.5 Insulation r esis anc 4

6.6 Minimum o ening v ltag e 4

Biblog raphy 5

ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards

b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly car ied out

through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical

committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational

org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www iso org dir ctives)

A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sponsible for identifying any or al such p t ent right Detais of

any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www iso org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

For an ex lanation on the meaning of ISO spe ific terms an ex r s ions r lat ed to conformity as es ment,

as wel as information a out ISO’s adhe enc to the Wor ld Trade Org nization (WTO) principles in the

Te h ical Bar ie s to Trade (TBT) se the folowing URL: www iso org iso/ for word html

The committ ee r sp nsible for this document isISO/TC 2 , Ro d vehicles , Subcommitt ee SC 41, S ec ific

as pec ts fr g seo s f els

A l s of al the p rt in the ISO 1 614 se ies can be foun on the ISO websit e

Road vehicles — Liquefied natural gas (LNG) fuel system

Part 19:

This document spe ifies t es s and r q ir ment for the aut omatic v lve, a lq ef ied natural g s fuel

sy st em comp nent int en ed for use on the ty es of mot or vehicles defined in ISO 3 3 This document

is a plca le t o vehicles using natural g sin ac ordanc with ISO 1 40 (al p rt ) (mono-fuel, bi-fuel or

d al-fuel a plcations) It is not a plca le t o the folowing:

a) fuel containe s;

b) s ationary g s engines;

c) containe mou ting hardwar ;

d) ele tronic fuel manag ement ;

e) r fuel ng r c ptacles

NOTE 1 It is reco nized that mis el ane us components not specif ical y covered herein can b e amined to

me t he c iteria of this document an tested ac ording t o the ap ropriate fu ctional t ests

NOTE 2 Al references t o pres ure in this document are considered g ug pres ures u les otherwise

specif ied

NOTE 3 T is document is b sed u on a working pres ure for natural g s as a fuel of 1,6 MPa (16 b r) Other

working pres ures can b ac ommodated by adjusting the pres ure by the ap ropriate factor (ratio) For e ample,

2Mpa (2 b r)working pres ure system wil req ire pres ures t o b multiplied by 1,2

2 Normati ve r eferences

The folowing document ar r fe r d t o in the t ext in such a wa that some or al of their cont ent

cons itut es r q ir ment of this document F or dat ed r fe enc s, only the edition cit ed a ples F or

un at ed r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment ) a ples

ISO 1 614-1, R oad vehicles — Liq e ied n tural g s (LNG) f el sys tem c omp nent — Part 1: G ene al

r q ir ments a d de initio s

ISO 1 614- 2, R oad vehicles — Liq e ied n tural g s (LNG) f el sys tem c omp nent — Part 2 : Pe f rma c e

a d gene al tes t meth ds

3 Terms and definitions

F or the purpose of this document, the t erms an def initions given in ISO 1 614-1 a ply

ISO an IEC maintain t erminolo ical data ases for use in s an ardization at the folowing ad r s es:

— IECEle tro edia: a aia le at ht p:/ www ele tro edia org

— ISO Onlne brow sing plat orm:a ai a le at ht p:/ www iso org o p

4 Mar king

Marking of the comp nent hal pro ide suff icient information t o alow the folowing t o be trac d:

a) theman factur r’s or ag ent’s name, trademark or symbol;

b) themodel designation (p rt n mbe );

c) theworking pr s ur or pr s ur an t empe atur rang e

The folowing ad itional markingsar r commen ed:

d) thedir ction of flow (w hen ne es ary for cor e t ins al ation);

e) thety e of fuel;

f) ele trical ratings( if a plca le);

g) thesymb l of the c rtif ication ag ency;

h) thety e a pro al n mbe ;

i) these ial n mbe or dat e code;

j) a r fe enc t o this document, i.e ISO 1 614-1

In ad ition t o the markings spe ified a o e, if the v lve is comp tible with s art/st op sy st ems, one of

the folowing additional marks shal be used:

(a) “H1”if the v lve is to be used with an engine that sh t of automaticaly when the vehicle comes

to a halt;

(b) “ H2”if the v lve is t o be used with an engine that, in ad ition t o (a), it also sh t of aut omaticaly

w hen the vehicledrives with an ele tric mot or only;

(c) “ H3”if the v lve is t o be used with an engine that, in ad ition t o (a) or (b), it also sh t of

aut omatical y w hen the ac ele at or pedal is r leased

NOTE This information can b provided by a suita le identif ication code on at le st one part of the component

when it consists of more than one part

5 Construction and as embl y

The aut omatic v lve shal comply with the a pl ca le pro isions of ISO 1 614-1 and ISO 1 614- 2, an

with the t es s spe if ied in Cla use 6

The aut omatic v lve shal be closed w hen de-ene giz d

The aut omatic v lve with man al b -pas shal me t the minimum r q ir ment of this document

6.1 A ppl cabi ity

The t es s r q ir d t o be car ied out ar in icat ed in Ta le 1

Table 1 — Tests applcable

Tes proc d r as

r quir d b

ISO 1 6 14- 2

Spe ific t es r quir ment

of this document

a

X

a

Ap lc bi ty depen s on the spe ific ins alation ins ructions f om the man fa turer

6.2 Hy rostatic str eng th

Tes the aut omatic v lve ac ording t o the proc d r for t es ing hydros atic s r ngth spe if ied in

ISO 1 614- 2 The t es pr s ur shal be 2,5times the working pr s ur

6.3 Le kag e

Tes the aut omatic v lve at the t empe atur s an pr s ur s given in Ta le 2

Table 2 — Test temperatures and pres ures

Tempe atur

°C

Pr s ur

F act or × Working Pres ure

6.4 Continued operation

Tes the aut omatic v lve in ac ordanc with the proc d r for t es ing contin ed o e ation given in

ISO 1 614- 2 for 7 0 0 cycles, an pe form the leakag e t es in ac ordanc with 6.3

6.4.1 If the automatic v lve is to be used in vehicles with s ar t-s o sys ems, an closed d ring

comman ed s o phases, the v lve shal be submited to the folowing n mber s of o erations d ring tes :

a) 2 0,0 0 cycles (mark “ H1” if the engine sh t of aut omaticaly w hen the vehicle comes t o a halt ;

b) 5 0,0 0 cycles (mark “ H2” if, in ad ition t o (a), the engine also sh t of aut omatical y w hen the

vehicle driveswith the ele tric mot or only;

c) 1,0 0,0 0 cycles (mark “ H3” if, in ad ition t o (a) or (b), the engine also sh t of aut omaticaly

w hen the ac ele at or pedal is r leased

6.4.2 F lowing cyclng an leakage tes ing, per for m the h ydros atic s rength tes in ac ordanc with 6.2.

6.5 Insulation r esistanc e

This t es is designed t o che k for a p t ential faiur of the insulation betwe n the two-pin coi as embly

an the metal c part of the aut omatic v lve casing

Ap ly 1 0 0 V d.c betwe n one of the conne t or pins an the housing of the aut omatic v lve for at leas

2s The minimum alowa le r sis anc shal be 240 kΩ

6.6 Minimum opening voltag e

The minimum o ening v ltag e at ro m t empe atur shal be ≤ V for a 1 V sy st em and ≤ 6 V for a 24 V

sy st em The comp nent hal be pr s uriz d at 0,7 times working pr s ur d ring the t es

Bibl og raphy

[1] ISO 3 3 , R oad vehicles — Types — Te ms a d de initions

[2] ISO 1 40 , Natural g s — Natural g s fr us e as a c ompr s s ed f el fr vehicles

ICS  43.060.40