Tiêu chuẩn iso 14469 2017

© ISO 2017 Road vehicles — Compressed natural gas (CNG) refuelling connector Véhicules routiers — Connecteur de remplissage en gaz naturel comprimé (GNC) INTERNATIONAL STANDARD ISO 14469 First edition[.]

Road vehicles — Compressed natural

Vé icule s ro tiers — Co necteur de r mplissage en g z n ture l

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© 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

F reword v

Introduction vi

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms an definitions 1

4 General c onstruction r eq irements 2

5 Noz les 3

6 Standard rec eptacle dimensio s 4

6.1 Stan ar d r ec ptacle dimensions Siz 1 (B20 , B2 0)

4 6.2 Stan ar d r ec ptacle dimensions siz 2 (C 0 , C 50) 7

7 Rec eptacles 10

8 Instructio s 11

9 Mar king 11

10 Tests 12

1 1 General r eq ir ements 1

1 2 Use inte fac 1

1 3 Impact r esis anc 1

1 4 Re eptacle prote tive ca s .1

1 5 Leakag e at r oom temperatur e 1

1 5.1 Noz le 1

1 5.2 Re eptacle 1

1 6 Valve o erating han le 14

1 7 A bnormal lo ds 14

1 7.1 General 14

1 7.2 Tes in the unpr es uriz d con ition 1

1 7.3 Tes in the pr es uriz d condition 1

1 8 Rocking /T wis ing 1

1 9 Mou ting har dwar e torque 1

1 1 L w and high temperatur es 1

1 1 1 General 1

1 1 2 Leakag e tes 1

1 1 3 Operation tes 1

1 1 Dur abi ty 1

1 1 1 Dur abi ty cyclng 1

1 1 2 Ox yg en ag eing 2

1 1 3 S al mate ial comp tibi ty 2

1 1 4 Ten-da y mois ammonia-air s r es cracking 24

1 1 5 Ele trical r esistanc 24

1 1 Hydr ostatic str eng th 24

1 1 Corr osion r esis anc 24

1 1 1 Noz les 2

1 1 2 Re eptacles 2

1 14 Deformation 2

1 1 Non-ig niting ev luation 2

1 1 Pr es ur e-tight pr ote tive ca (PTPC) 2

1 1 1 General 2

1 1 2 Leakag e 2

1 1 3 Dur abi ty cyclng 2

1 1 4 A buse 2

1 1 5 Imp ct r esis anc 2

1 1 6 C rrosion resistanc 2

1 1 7 Hydros atic s r eng th 2

A nne x A (informative)Noz le character istic 28

A nne x B (normative) Rec eptacle te x t fix ture 29

Biblog raph y 37

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

b dies (ISO membe b dies) The work of pr p ring Int ernational Standards 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 l shed 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 www iso org dir ctives

A tt ention is drawn t o the p s ibi ity that ome 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 pat ent right Detais of

any p t ent right identif ied 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 www iso org pat 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

F or an ex lanation on the meaning of ISO spe if ic t erms an ex r s ions r lat ed t o conformity

as es ment, as wel as information a out ISO’ s adhe enc t o the WTO principles in the Te h ical

Bar ie s t o Trade (TBT), se thefolowing URL:F or word - Sup lementary information

The committ ee r sp nsible for this document isISO/TC2 , R oad vehicles , Subcommitt ee SC41, S ec ific

as pec ts fr g s eo s f els

This f irs edition of ISO 14 6 :2 1 canc ls an r plac s the f irs edition of ISO 1446 -1:2 04,

ISO 1446 - 2:2 0 an ISO 14 6 -3:2 0 , w hich have be n t ech icaly r vised

This document was develo ed t o use in the ex mination, t es ing an c rtification of new ly prod c d

compr s ed natural (CNG) g s vehicle fuel ng noz les an r c ptacles an , as such, a ples only t o the

noz les an r c ptacles used in CNG fuel ng sy st ems, an not t o the sy st em it elf

A noz le c rtif ied t o this Int ernational Stan ard wi l be fu ctionaly comp tible from a safety an

pe formanc pe spe tive with al lst ed r c ptaclesof compatible prof ile an sy st em pr s ur Simiarly,

a c rtif ied r c ptacle wi be fu ctionaly comp tible from a safety an pe formanc pe spe tive with

al l st ed noz les of comp tible profile an sy st em pr s ur

As the e ma eventual y be many dife ent kin s of noz les an r c ptacles a ai a le from a v riety

of man factur rs w hich, for safety r asons, ha e t o be al compatible with one anothe , this document

spe ifies a se ies of r c ptacle prof iles These s an ard profiles incorp rat e the design spe if ications

(mating mat erials, g eometry an t ole anc s)w hich ma be conside ed in the c rtif ication ofa submitt ed

noz le or r c ptacle

The cons ruction an pe formanc of noz les an r c ptacles ar b sed on the o se v tion that thr e

main p ramet ers afe t use safety an sy st em comp tibi ity

a) S rvic pr s ur

Al noz les an r c ptacles ar designed t o ha e a se vic pr s ur of eithe 2 MPa (2 0 b r) for B2 0

an C2 0 con e t ors or 2 MPa (2 0 Bar) for B2 0an C 5 con e t ors

b) Design lfe

Fr q ency of use is the se on p ramet er t o be conside ed Sinc fr q ency of use wi dife with the

noz le /r c ptacle a pl cation ( i.e publc se t or, fle t emplo e an r sidential), al r c ptacles wi l be

t est ed at 1 0 0 con e t/discon e t cycles for complanc with this document In addition, al noz les

wi be t est ed ac ording t o the folowing fr q ency useclas ifications, as a plca le:

— Clas A Noz le, spe ifying high fr q ency use, with a cycle lfe of 1 0 00 cycles an eq ating t o

a pro imat ely 1 0 fil s pe da for thr e years;

— Clas B Noz le, spe ifying medium fr q ency use, with a cycle l fe of 2 0 0 cycles an eq ating t o

a pro imat ely 1 fil s pe da for five years

c) Training

Ope at or training r q ir d is in ac ordanc with national r q ir ment

Road vehicles — Compressed natural gas (CNG) refuel ing

This document pe if ies CNG r fuel ing noz les an r c ptacles cons ruct ed entir ly of new an un sed

p rt an mat erials, for ro d vehicles powe ed b compr s ed natural g s A CNG r fuel ing con e t or

consis s of, as a plca le, the r c ptacle an it prot ective ca (mount ed on the vehicle)an the noz le

This document is a plca le only t o such devic s designed for a se vic pr s ur of 2 MPa (2 0 b r)

an 2 MPa (2 0 b r), t o those using CNG ac ording t o ISO 1 40 -1 an ISO 1 40 - 2 an ha ing

s an ardiz d mating comp nent , an t o con e t ors that pr vent natural g s vehicles from being

fueled b dispense s with se vic pr s ur s highe than that of the vehicle, w hie alowing them t o

be fueled b dispense s with se vic pr s ur s les than or eq al t o the vehicle fuel sy st em se vic

are considered g ug pres ures, u les

otherwise specif ied

2 Normati ve r eferences

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a pl es F or u dat ed

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

ISO 1 8, R ub e , v ulc ani zed or thermo las tic — Ac c ele ated a ein a d heat r s i s ta ce tes ts

ISO 1 1 , Ru be , v ulc ani zed or the mo las tic — Dete min tion o the efec t o lq ids

ISO 9 2 , Cor os io tes ts in artific ial atmos phe es — S lt s pra tes ts

ISO 1 5 0- 2, Ro d vehicles — Compr s s ed n tural g s (CNG) f el sys tem c omp nents — Part 2 :

Pe frma c e a d gene al tes t meth ds

ISO 1 5 1-1, Ro d vehicles — Compr s s ed n tural g s (CNG) f el sys tems — Part 1: S fet y r q ir ments

3 Terms and definitions

F or the purposes of this document, the folowing t erms an definitions a ply ISO an IEC maintain

t erminolo ical data asesfor 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 Onlnebrow sing plat orm: a ai a le at ht p:/ www iso org o p

dry air

air with mois ur cont ent such that the dew point of the air at the r q ir d t es pr s ur is at leas

1 °C below the ambient tes t empe atur

3.2

hy rostatic pres ure

pr s ur t o w hich a component is taken t o ve ify the s ructural s r ngth of the comp nent

3.3

wor king pres ure

ma imum pr s ur that a CNG r fuel ng conne t or can be ex e t ed t o withs an in actual se vic

3.4

service pres ure

set led pr s ur of 2 MPa (2 0 bar) at a u iform g s t empe atur of 1 °C for B2 0 and C 0

conne t ors or 2 MPa (2 0 Bar) for B2 0 an C 5 con e t ors

3.5

positive locking me ns

featur w hich r q ir s actuation of an int erlocking me hanism t o al ow con e tion/discon e tion of

the noz le from the r c ptacle

3.6

CNG refuel ing noz le

devic w hich pe mit q ick conne tion an disconne tion offuel sup ly hose t o the CNG r c ptacle in a

safe man e , he eaft er r fe r d t o as noz le

3.7

CNG refuel ing receptacle

devic con e t ed t o a vehicle or st orag e sy st em w hich r c ives the CNG r fuel ng noz le an pe mit

safe trans e of fuel, he eaft er r fe r d t o as r c ptacle

3.8

CNG refuel ing connector

joined as embly of CNG r fuel ng noz le an r c ptacle, he eaft er r fe r d t o as con e t or

4 General c onstr uction requir ements

4.1 Noz les an rec ptacles man factur ed in ac or danc with this document shal be desig ned in

ac ordanc w ith r easona leconc pts of safety, d rabi ty and maintaina i ty

4.2 Noz les an r ec ptacles shal be wel fited an manufactur ed in ac or danc w ith g ood eng ine ring

practic A ll construction r eq ir ement ma y be met b eithe the construction spe ified in this document

or anothe cons ruction that g ives at leas eq iv lent pe formanc

4.3 Noz les an r ec ptacles shal be

— designed t o minimiz the p s ibi ity of incor e t as embly,

— designed t o be se ur a ains displac ment, dist ortion, warping or othe damag e, an

— cons ruct ed t o maintain o e ational int egrity u de normal an r asona le con itions of han lng

an usag e

4.4 Noz les an r ec ptacles shal be man factur ed of mate ials suitable an comp tible for use with

CNG at thepr es ur e an the temper atur e r ang es to which they wil be subje ted ( e Clause 1)

The minimum t empe atur rang e shal be sele t ed b theman factur r between the fol owing rang es:

— 40 °C t o 8 °Cor 1 0°C as a plca le;

— 2 °Ct o 8 °C or 1 0 °C as a plca le

NOTE 1 T e lower t emperature limit depen s on whether the component is t o b used for mild or cold weather

NOTE 2 T e high temperature limit depen s on whether the component wil b instal ed inside the engine

compartment (1 0°C)or outside of the engine compartment ( 85°C)

4.5 Noz les an r ec ptacles cons ructed of bras shal use bras alo s with a co pe mas

content ≤7 % This wil ensur e pr ope mate ial comp tibi ty with al the constituent of natur al gas

4.6 S p rate ex te nal thr ee-wa y v lves shal be cons ructed and mar ked so as to in icate clear ly the

o en, sh t an vent p sitions

4.7 Noz les an r ec ptacles shal be o er ated eithe to conne t or discon e t w ithout the use of to ls

4.8 The r ec ptacle shal bemou ted on thevehicle in ac or danc with ISO 1 5 1-1

4.9 Jointing comp nents shal pr ovide gas-tight ealng pe formanc

5.1 Noz les shal be one of the thr ee types ac or ding to a), b) an c) S e also A nnex A

a) Ty e 1 is a noz le for use with dispensing hoses that r main ful y pr s uriz d at dispense

sh tdown

The noz le shal not alow g s t o flow unti a positive con e tion has be n achieved The noz le shal be

eq ip ed with an int egral v lve or v lves, incorp rating an o e ating me hanism w hich f irs st ops the

supply of g s an safely vent the tra ped g s befor alowing the disconne tion of the noz le from the

r c ptacle The o e ating me hanism shal ensur that the vent v lve is in the o en p sition befor the

r lease me hanism can be o e at ed an that the g s locat ed betwe n the noz le sh t-of v lve an the

r c ptacle che k v lve is safely vent ed prior t o noz le discon e tion ( e 1 2)

b) Ty e 2 is a noz le for use with dispensing hoses that r main ful y pr s uriz d at dispense

sh tdown A sep rat e thr e-wa v lve con e t ed dir ctly, or in ir ctly, t o the inlet of the noz le is

r q ir d t o safely vent tra ped g s prior t o noz le discon e tion The noz le shal not pe mit the

flow of g s if u conne t ed Venting isr q ir d prior t o discon e tion of the noz le ( e 1 2)

c) Ty e 3 is a noz le for use with dispensing hoses w hich ar a ut omatical y depr s uriz d — 0,5 MPa

(5 b r) an below — at dispense sh t down ( e 1 2)

In ad ition, noz les shal be clas if ied in t erms of cycle lfe as folows:

— Clas A, spe ifying high fr q ency use, with a cycle lfe of1 0 0 0;

— Clas B, spe ifying low fr q ency use, with a cycle l fe of 2 00

5.2 Venting or de-pr es urization of al noz le types is req ir ed prior to discon e tion Discon e tion

of al noz les shal be a le to be ac omplshed in ac or danc with 1 2

5.3 The method for ataching the noz le to the fuel dispensing sys em hose shal not r ely on the joint

thr eads betwe n the male an female threads for sealng (e.g conical thr eads)

5.4 The thr ee-wa y v lve ex haus p rt of T ype 1 an T ype 2 noz les shal be pr ote ted fr om the ing res

of for eig n particles an fluid which would hampe the o eration of the v lve

5.5 The portions of a noz le which ar e held b the use for con e tion or disconne tion ma y be

the maly insulated

5.6 A T ype 1 noz le shal bear a mar king in icating the direction of the o en an sh t o eration if it

contains a rotating actuation me hanism

5.7 The inte fac surfac of the noz le shal be cons ructed of mate ial ha ving a har dnes > 5 Rockwel

B (HRB 7 ) an shal be non-sp r king and cond ctive ( e 1 11.5 an 1 1 )

The ex osed surfac s of the noz les shal be made of non-sp rking mat erials ( e 1 1 5 and 1 1 )

5.8 Noz les shal comply w ith the pe formanc r eq ir ement of Clause 1 to ensure inter chang ea i ty

6 Standard rec eptacle dimensions

6.1 Standard rec eptacle dimensions Size 1 (B200, B250)

A Siz 1 r c ptacle shal comply with the design spe ifications shown in Figur 1 an 2

Dimensions in milimetr es

Surface r oughnes ≤ Ra 3,2µm

Key

T is ar ea shal b kept r ee of al components

a

Minimum lengt h of t he recept acle t hat is cle r of provisions for at t achment of t he recept acle or

protect ive caps

b

S aling surface eq ivalent to N°1 0O-ring of dimensions:

— Internal diameter: 9,1 ±0,1 7; w idth: 2,62 ± 0,07 ;

— S aling surface finish: 0,8 μm to 0,0 μm;

— Material har dnes : 75 HRB minimum

Figure 1 — B200 receptacle

Dimensions in milimetr es

S aling surface eq ivalent o N°1 0 O-ring of dimensions:

— Internal diameter: 9,1 ± 0,1 7; w idth: 2,62 ±0,07 ;

— S aling surface finish: 0,8 μm to 0,0 μm;

— Material har dnes : 75 HRB minimum

Figure 2 — B250 receptacle

6.2 Standar d rec eptacle dimensions size 2 (C200, C250)

A Siz 2r c ptacle shal comply with the design spe if ications detai ed in Figur s 3 an 4

S aling surface eq ivalent o N°2 8 O-ring of dimensions:

— Internal diameter: 1 ,4 ±0,2 ; w idth: 3,5 ±0,1;

— S aling surface finish: 0,8 μm to 0,0 μm;

— Material har dnes : 75 HRB minimum

Figure 3— C200 receptacle

S aling surface eq ivalent to N°2 8 O-ring of dimensions:

— Internal diameter: 1 ,4 ±0,2 ; w idth: 3,5 ±0,1;

— S aling surface finish: 0,8 μ m to 0,0 μ m;

— Material har dnes : 75 HRB minimum

Figure 4 — C25 receptacle

7 Rec eptacles

7.1 Re eptacles shal be ev luated using at leas two diferent tes noz les, each noz le r epr esenting a

diferent locking te h olog y

The faiur of any t es con uct ed with ther c ptacle an noz le t es samples shal cons itut e a faiur of

the submitt ed r c ptacle, u les the man factur r can pro e the pro lem was ca used b the t es noz le

7.2 Re eptacle desig ns which emplo means, on the b ck diamete as shown in Fig ure 5, to

ac ommodate mou ting , or for mou ting ac es ories or mar king purp ses, shal not ha ve such means

exten bey n the b ck diamete dimensions of the profie as spe ified b Fig ure 1 to Fig ur e 4, as

a plca le Ac epta le mea s inclu e w r ench flat , d s ca anchoring g r oo es, use of hex s ock,

u der cutting for mar king , an threads for pres ur e-tight ca s Re eptacle desig ns shal not compr omise

the inter chang ea i ty r eq ir ement spe ified in A nnex B

Key

1 b ck diameter

Figure 5 — Receptacle design

7.3 The r ec ptacle shal be eq ip ed with an inte nal che k v lve to pr event the esca e ofgas T e

che k v lveshal be of the non-contact type, o ening b difer ential pr es ur e only

7.4 The method for attaching the r ec ptacle to the vehicle fuel sys em shal not rely on the joint

betwe n the male an female thr eads for sealng , such as conical thr eads

7.5 The inte facing surfac of the r ec ptacle shal be cons ructed of mate ial ha ving a

har dnes > 5 Rockwel B (HR B75) an shal be non-sp rking an con uctive ( e 1 1 5 an 1 15)

Theex osed surfac s of devic s shal be made of non-sp rking mat erials ( e 1 1 5)

7.6 Re eptacles shal ha ve a meansto prevent he ing r es of fluids and for eig n mate

7.7 The fu ction spe ified in 7.6 ma y also be met b eithe a pr ote tive ca ( e 1 4) or a pr es

ure-tight pr ote tive ca ( e 1 1 )

7.8 The rec ptacle shal ha ve provisions to be firmly attached to the vehicle an shal comply with

a plca le a normal lo d tes s (se 1 7)

7.9 Re eptacles shal ha ve a cyclelfe of> 00 0cycles

8 Instr uctions

8.1 Information r eq ir ed u de this clause for ins ructions an pr ovisions to be spe ified shal be

g iven in an easiy u de s o d form

8.2 Spe ial to ls r eq ired for con e tion ofr ec ptacles to tubing an as embly an disas embly of

three-wa y v lve p rt shal be clear ly identified in the ins ructions

8.3 The man factur ers of r ec ptacles, noz les an thr ee-wa y v lves shal pr ovide clear and concise

printed ins ructions an diag rams in a form that can be easiy un e s o d an adeq ate for

a) pro e field as embly,

9.1 Information r eq ir ed u de this clause shal be clear an leg ible Mar king should be emb s ed,

eng ra ved, cast , s amped or othe wise formed in the p rt This includes mar king s b ked into an enameled

surfac

9.2 Noz les an r ec ptacles shal bear the folowing information:

a) man factur r’s or deale ’ s name, trademark or symbol;

b) model designation;

c) B2 0 or B2 0 or C 00 or C2 0;

d) a plca le ty e an clas ( e 5.1);

e) o e ating t empe atur rang e

9.3 Noz les an r ec ptacles shal each bear a manufacturing date code

9.4 Mar king to identify this document shal be pr ovided for each sys em, it ma y be located on the

devic , on the packag e or on a notic plac d insidethe p ckag e in which the devic is ship ed

10 Tests

10.1 General requirements

The noz le an r c ptacle t est ed shal be of the r c ptacle an noz le designsspe if ied from Clauses1

t o 9 Unles othe wise s at ed,

a) t es s shal be con uct ed at ro m t empe atur (2 ± 5) °C,

b) al pr s ur or leak t es sshal be con uct ed with dry air or dry nitrog en, an

c) devic s shal be con itioned t o at ain eq i ibrium conditions

Unles othe wise spe if ied al pr s ur s, t empe atur s an dimensionsshal ha e a ma imum t ole anc

of ± %

Ty e 2 noz les shal be t est ed in se ies, with eithe a thr e-wa v lve or some othe means t o

in epen ently pr s uriz an vent the noz le The thr e-wa v lve shal not afe t the t empe atur ,

d ra i ty or flow charact eris ics of the noz le Faiur of the thr e-wa v lve shal not cons itut e

faiur of the noz le A thr e-wa v lve sup led for uti ization with a Ty e 2 noz le shal be ev luat ed

separat ely

Noz le t es s shal be done with the t es f ixtur s, spe if ied in Annex B, as a pl ca le A new r c ptacle

t es sample shal be used for each noz le t es The faiur of any t es con uct ed with the noz le an

r c ptacle t es sample shal cons itut e a faiur of the noz le design

10.2 User interfac e

The a pearanc of the noz le an r c ptacle shal be such as t o clear ly sugg es the pro e method of use

It shal not be p s ible t o delve g s using Ty e 1 noz les u les the noz le an r c ptacle ar con e t ed

pro e ly an p sitively locked

Up n disconne tion, Ty e 1, 2 an 3 noz les shal st op the flow of g s No hazardous con ition shal

r sult rom discon e tion Ty e 3noz les shal be un e a pr s ur of 0,7 MPa (7 b r)d ring this t es

When the contained pr s ur is les than or eq al t o 0,7 MPa (7 b r), al noz les shal be ca a le of

being discon e t ed with for es or t orq es not ex ce ding 2 5 N or 7 N·m

The disconne tion for e /t orq e shal be a pled in a dir ction that t en s t o u ho k an r lease the

noz le The for e /t orq e shal be a pled t o the un o king r lease actuat or The t orq e shal be

a pled through a is rotation of the noz le han le eq al t o the ext erior han l ng surfac of the noz le

uncouplng me hanism an in a dir ction such that the noz le t en s t o u ho k an be r leased

On depr s uriz d devic s, the a ial for e t o con e t an lock or unlock an discon e t the devic shal

be ≤ 0N

On a p sitive locking devic that incorp rat es a rotary locking means, the t orq e t o lock or unlock the

locking means shal not ex ce d 1 N·m for a devic ha ing a diamet er of ≤ 5,4 mm and 1,7 N⋅m for a

devic ha ing a diamet er > 25,4 mm

The minimum for e t o faci tat e disconne tion at pr s ur s of 6,2 MPa (6 ,5 b r) or mor , shal be 2,5

times comp r d t o the disconne tion for ew hen Ty es 1 an 2noz les ar depr s uriz d or w hen ty e

3 noz les ar at a pr s ur of 0,7MPa (7 b r) Ty e 1 noz les shal be t est ed with the vent p rt plugg ed

10.3 Impact resistanc e

A noz le shal be conne t ed t o a 4,6 m length of 9,5mm int ernal diamet er (ID )fuel ing hose, con itioned

at −40 °C or lower for 24 h an then dro ped 1,8 m ont o a conc et e flo r as shown in Figur 6 The noz le

shal be dro ped 1 times, then pr s uriz d t o se vic pr s ur an subje t ed t o 1 ad itional dro s

F olowing this, the noz le shal be ca a le of normal conne tion an disconne tion t o the r c ptacle In

ad ition, the noz le shal comply with al leakag e t es s spe ified in thisdocument ( e 1 5)

Key

1 suita le su port

2 r efueling hose (9,5 mm diameter)

3 noz le

4 concr ete flo r

Figure 6 — Impact resistance test ar ang ement

10.4 Rec eptacle pr otecti ve caps

The e shal be no pe manent dist ortion or damag e t o any r c ptacle prot ective ca w hen t est ed as

folow s

A sold st eel bal with a diamet er 5 mm shal be dro ped from a height of 3 0 mm s riking the

prot ective ca ins aled on the r c ptacle The t es shal be con uct ed at −40 °C or lower an at 8 °C

or highe at a minimum of five point of impact mos l kely t o cause damag e t o the r c ptacle an the

/h (normal), w hen t est ed as folow s

Tes s shal be con uct ed at 0,5 MPa (5 b r), then at 1,5 times the se vic pr s ur an then a ain at

0,5 MPa (5 b r)

Pr s uriz d air or nitrog en shal be a pled t o the inlet of the coupled (or u coupled) devic The ext ernal

b dy shal then be che ked for bub le-tight leakag e using imme sion in ro m t empe atur w at er

Al conne t ors shal be che ked for leakag e from the time of con e tion, through ful fuel flow, t o the

time of disconne tion

NOTE T e trap ed volume of g s rele sed d ring dis on ection is not considered as le ka e

If the e ar no bub les for a pe iod of 1 min, the sample p s es the t es If bub lesar det ect ed, then the

leak rat e shal be measur d b eithe a v cu m t es using helum g s (glo al ac umulation method) or

Tes s shal be con uct ed at 0,5 MPa (5 b r), then at 1,5 times the se vic pr s ur an then a ain at

0,5 MPa (5 b r)

The r c ptacle shal be conne t ed t o a pr s ur ves el ca a le of safely ac ommodating the spe if ied

t es pr s ur s The r c ptacle an pr s ur ves el shal then be pr s uriz d Onc the pr s ur

ves el has r ached the spe if ied t es pr s ur , the ups r am p rtion of the r c ptacle shal be q ickly

depr s uriz d an the r c ptacle che k v lve che ked for leakag e

10.6 Val ve operating handle

If a noz le is eq ip ed with a v lve o e ating han le, it shal be ca a le of withs an ing double the

man factur r’s spe if ied o e ating t orq e or for e, without damag e t o the o e ating han le or the

o e ating han le st ops

The t es shal be pe formed with the t orq e or for e a pled in b th the o ening an closing dir ctions

a) with the noz le pro e ly con e t ed t o a r c ptacle, an

b) with the noz le int entional y misalgned r lative t o the r c ptacle

10.7 A bnormal loads

10.7.1 General

The con e t ed noz le and r c ptacle shal be subje t ed t o the folowing a normal lo ds for a pe iod of

5 min in se vic These t es s ar t o be con uct ed sep rat ely:

a) puls a along the longitu inal a is of the noz le or r c ptacle;

b) moment b a pl ed in a wors -case manne

The noz le an r c ptacle shal be a le t o withs and a normal lo ds of a = 1 3 0 N an b = 1 0 N·m

without dist ortion or damag e, an of a = 2 7 0 N an b = 240 N·m without be oming so damag ed as t o

leak The lo d an moment arm shal be measur d a out a p int 41 mm from the front ofthe r c ptacle

t o thehose inlet of the noz le ( e Figur 6)

Aft er completing these t es s, the r c ptacle shal comply with 1 5

Figure 7 — Ab ormal load test

10.7.2 Test in the unpres urized c onditio

The r c ptacle t es fixtur an noz le shal not be pr s uriz d d ring the a normal lo d t es s

The r c ptacle shal be mou t ed as a cantieve t o a sup orting membe in ac ordanc with the

man factur r’ s ins ructions F or the purposes of this t es , the sup orting membe shal be ca a le of

withs an ing the spe if ied lo ds without displac ment or defle tion

The lo ds a pled an the devic ’s a i ity t o r sis damag e shal be as spe if ied in 1 7.1 Aft er

completion of the t es s, ther c ptacle shal comply with 1 5

10.7.3 Test in the pres ur ized c onditio

The r c ptacle t es fixtur an noz le shal be pr s uriz d 1,2 times se vic pr s ur d ring the

a normal lo d t es s

The “lo se f it” t es f ixtur ( e An ex B) shal be used for this t es , r g rdles of the working pr s ur

rating of the noz le The t es fixtur shal be mou t ed as a canti eve t o a sup orting membe The

sup orting membe shal be ca a le of withs an ing the spe if ied lo ds without displac ment or

defle tion The noz le shal be pro e ly conne t ed t o the t es fixtur

The lo ds a pled an the devic s’ a i ity t o r sis damag e shal be as spe if ied in 1 7.1 Aft er

completion of the t es s, ther c ptacle shal comply with 1 5

10.8 Rocking /T w isting

The r c ptacle an it mou ting hardwar shal not be lo sened or damag ed w hen subje t ed t o the

folowing t es

Uti izing the r c ptacle mounting hardwar submitt ed b the man factur r, the r c ptacle shal be

mount ed on a sup orting membe in ac ordanc with the man factur r’s ins ructions The sup orting

membe shal be ca a le of withs an ing the spe if ied lo ds without displac ment or defle tion The

noz le, at ached t o a pr s uriz d hose ins al ed as for normal use, shal be pro e ly con e t ed t o the

r c ptacle An alt ernating 24 N·m moment shal be a pled at a p int on the noz le furthes from the

r c ptacle for 2 5 0 times at a fr q ency not ex ce ding one cycle pe se on

A t orq e of 4 N·m shal then be a pled 1 times t o the r c ptacle in the dir ction mos lkely t o lo sen

the mounting hardwar

F olowing these t es s, the r c ptacle shal comply with the ro m t empe atur leakag e t es s ( e 1 5),

F olowing ro m t empe atur leakag e t es s, the r c ptacle shal comply with hydros atic s r ngth t es s

( e 1 1 )

10.9 Mounting har d war e torque

The r c ptacle an mou ting hardwar shal withs an , without damag e, a turning for e eq al t o

1 0 % of the man factur r’s r commen ed mounting hardwar fast ening t orq e

10.10 Low and high temperatures

10.1 1 General

Prior t o conditioning, the devic s shal be purg ed with nitrog en an then sealed from the atmosphe e

un e a pr s ur of 7 MPa (7 b r) nitrog en or dry air

Al t es s shal be con uct ed w hie the devic s contin e t o be ex osed t o the spe ified t es t empe atur s

The outlet of the devic shal be plugg ed an the t es pr s ur shal bea pled t o the inlet of the devic

The devic shal be eithe bub le-fr e d ring the leak t es for the spe ified time pe iod or ha e a leak

A t each t es con ition, as folow s, the devic s shal be maintained at the spe if ied t empe atur for 2 h,

then t est ed in ac ordanc with 1 1 2.2:

a) the noz le an r c ptacle coupled, con itioned at −40 °C (or − 20°C as a plca le) or lower an

pr s uriz d at 0,5MPa (5 b r)an 1 MPa (1 0b r);

b) the noz le and r c ptacle coupled, con itioned at 8 °C (or 1 0°C as a plca le) or highe an

pr s uriz d at 1MPa (1 b r)an 1,5 times se vic pr s ur ;

c) the r c ptacle u coupled, con itioned at −40 °C (or − 20°C as a plca le) or lowe an pr s uriz d

Pr s uriz d air or nitrog en shal be a pled t o the t es comp nent The ext ernal b dy shal then be

che ked for bub le-tight leakag e using

a) at −40 °C(or − 20°Cas a plca le), imme sion in a 7 % glycol an 3 % w at er mixtur for 2 min, an