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# OAR Box 1147 Prepped by Ollie Stewart



### Document

Number: 

# 182 ) IV-E-5 5 Docket Number: 

# A-87-1 1

Printed 4/22/2008 2:42:57

PM Sheet 182 of 242\ UNITE D STATE S ENVIRONMENTA LPROTECTIO N AGENC Y P. 2 

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AN N ARBOR . MICHIGA N 4810 5 % OFFIC E O F AI R AN D RADIATIO N 

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8
MEMORANDU

M SUBJECT : EP

AMeeting s Wit hPotentia l Onboar d Rollove r Ven t Valv e Manufacturer s FROM : Jea n Schwendeman , Mechanica l Enginee r ^s£rt%^~ yv | • ^ ^

Standard s Developmen t an d Suppor t Branch^ / TO : Publi c Docke t A-87-1 1 THRU : Glenn W . Passavant , Senio r Projec t Manage r

Standard s Developmen t an d Support ; ^ranc h Cheste r J . France , Chie f -4 A Standard s Developmen t an d ^ppo/r l Representative s o f EPA' s Offic e o f Mobil e Source s hav e me t wit hsevera l manufacturer s o f automotiv e evaporativ e emissio n contro l system/rollove r valve s t o discus s potentia l design s o f onboard refueling ven t valves . Al l o f thes e manufacturer s now manufacture r fue l tan k rollove r valve s an d eac hha s bee n working wit hautomotive companie s on onboard refueling contro l syste mdesigns . Eacho f the manufacturer s sai d theydo 10 0 percen t reliabilit ytestin g o n thei r curren t valve s a s par t o f thei r productio n process . Alis t o f the meeting date s an d attendee s i s attached . Th e firs t meeting wa s hel d wit hG.T . Products , whic h manufacture s a rollover-ven t valve used o n Ford light-dut y trucks . G.T . Product s ha s provide d EP Awit hsevera l o f thes e valves . Thi s valve design wa s modifie d b yEP Aan d incorporate d int o ou r mos t curren t onboard contro l syste mdesign . Ameeting wa s als o hel d wit hStant . Stan t ha s propose d a fue l fillnec k mounte d refueling ven t valve . The design o f thi s valv e i s show

n i n th

e attache d handou t whic hStan t presente d a t the meeting . Severa l page s o f th e handou t ar e no t include d inP. 3

the attachmen t becaus e theycontai n informatio n considere d confidentia l b

yStant . EP

Aha s no t obtaine d an yvalve s fro

m Stant. - Stan t als o di d a fiel d surveyo f servic e station s i n the Connersville , Indiana are a wher e on e o f thei r facilitie s i s located . Theycollecte d dat a o n nozzl e diameter s an d vacuu

m shutof f signal s a t thes e stations . Th e dat a provide d t o EP Ai s attached . EP Aals o me t wit hBorg-Warner . Borg-Warne r als o showe d EP Aa fillnec k mounte d valve , bu t provide d no furthe r handout s or relate d hardware . Attachment sP. 4

EPA/G.T . Product s Meeting Februar y16 , 198 8 Joh n Anderso n EP AJosephNewto n G.T , Glenn Passavan t EP ARud

yBergsm

a G.T , Kare n Lostosk i EP A Joh n Gabrysia k EP A Jea n Schwendeman EPA

EPA/Bor g Warne r Meeting February17 , 198 8 Joh n Anderso n Glenn Passavan t Jea n Schwendema n Joh n Gabrysia k EP A EP A EPA EP A Joh

n Aube l Bor g Warne r

EPA/Stan t Meeting Marc h1 , 198 8 Joh n Anderso n EP ARober t Harri s Stan t Jean Schwendeman EP AWillia

mJohnso n Stan t Joh n Gabrysia k EP AWillia

mThornto n Stan tP. 5 ' • • 'JU T - - -T --" • — ' '- • -~- "'•"• - - "

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## £ V 0137 8 

# STAN TDESIG N CRITERI A, O.B.V.R . *W * 1 . CUSTOME R SAFET Y 2 . NORMAL'OPERATIO N 3 . IMPROVE D FIL L FUNCTIO N 4 . REGULATOR YCOMPLIANC EP. 6

/ . / 

# 1 . CUSTOME R SAFET Y

•PROVISIO N FO R FAILE D NOZZL E SHUT-OF F
•CONTROLLE D BYPAS S FLO W •LIMITE D TAN KPRESSUR E EXCURSIO N •MINIMA L LIQUI D LOS S DURIN G FAILUR E MOD E NOZZL E REMOVA L •N O LIQUI D LOS S A TCA P REMOVA LP. 7



# 2 . NORMA L OPERATIO N
CONVENTIONA L CA P REMOVA L SMOOT H LO WEFFORTNOZZL E INSERTIO N N O TRANSITIO N O R MANIPULATIO N REQUIRE D FRO M OF F T O FUL L FLO W WALK-AWA YNOZZL E POSITIONIN G AN D OPERATIO N SMOOT H LO WEFFORTNOZZL E REMOVA L DR YNOZZL E A TREMOVA L WIT H NORMA L SHUT-OF FP. 8 

# i 3 . IMPROVE D FIL L FUNCTIO N
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# I

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•ELIMINAT E PREMATUR E NOZZL E SHUT-OFF S A T AL L FIL L RATE S T O 1 3 GALLONS/MIN . •REDUC E FIL L RAT E SENSITIVIT YT O VOLATILIT YO F FUE L •INCREAS E ACCURAC YOFFUL L TANK'FIL L LIMI T •REDUC E POTENTIA L FO R OVERFIL L DU E T O MANUA L TRICKIN G O F NOZZL E •ELIMINATE'SPI TBACKSDURIN G FIL L O R NOZZL E SHUT-OF I •REDUC E TAN KOVERFIL L DURINGFAILE D NOZZLE ' OR OTHE R FAILUR E MODE S « PROVIDE'PLAN TFILL'CAPABILIT YT O 2 0 GALLONS/MIN .P. 9



# 4 . REGULATOR YCOMPLIANC E

TARGET-ZER O LOS S DURIN G FIL L •EFFECTIV E NOZZL E SEA L •MINIMA L PRESSUR E STRES S ON SEA L DURIN G REFUELIN G •ELIMINAT E PRESSUR E SPIK E DURIN G NOZZL E SHUT-OF F PROVID E COMPLET E INDEPENDENC E FRO M fHfNttSS S YSTE M ALLO WDRA WBAC KTHROUG H STORAG E SYSTE M DURIN G TAN KVACUU M CONDITION S FUL L COMPLIANC E WITH'EXTENDED'N.H.T.S.A . GUIDELINE S VEN TRESIDUA L TAN KPRESSUR E T O STORAG E SYSfEW T PRIO R T O REFUELIN G OPERATION S

# EXTERNA L VEN T IORMA L VEHICL E OPERATIO N CLOSUR E CA P CONTRO L DIAPHRAG M PASSAG E CONTRO L DIAPHRAG M (OPE N DURIN G REFUELING) (CLOSE D DURIN G VEHICL P OPERATION ) 

### PURG E PASSAG E (T O CANISTER )

LENGTH A

S REQURE D T O CLOS E VAPO R FLO

WPASSAG E T O CANISTE R DURIN G TAN KOVERFIL L CONDITIO N 

### NOZZL E SEA L FLAPPE R DOO R

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### •N TPASSAG E RO M TANK) BY-PAS S VALV E (PRESSUR E RELIEF

) FUE L DISCRIMINATO R DIAPHRAG M FIL L PASSAG E t NOZZL E SHUT-OF F PASSAG E FUE L DISCRIMINATO R DIAPHRAG M PASSAG E

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# Slan t CoKrstriO- IU. JnL. ^ FIEL D SURVE Y O F SERVIC E STATIONNOZZLE S Nozzl e Shut-Of f Signal , Vacuum : X = 7.1 8 kP a < J = 0.95 8 kP a (Ful l fil l rate ) Nozzl e Diameter : X = 0.81 4 in . o r = 0.00 5 in . (SA E Recommendation : 13/1 6 i n (0.812 5 t o 0.840) ) Servic e Statio n Amoc o OP W Shel l (1 ) OPW , Husk

y Bonde d OP W Unite d OPW , Husk

y Shel l (2 ) Husk y Mobi l Vikin g Clar k Emc o Wheato n Shel l (3 ) OP W Maratho n Emco , Husk

y Checke r OP W Vacuu mSigna l (kPa ) 8.2 5 9. 0 7. 5 6. 5 7. 0 5.2 5 7. 5 7. 5 8. 0 7. 0 7. 0 6. 5 6. 0 7. 5 9. 0 8. 0 5.7 5 6. 5 6.2 5 7. 5 7. 0 7. 5 Nozzl e

.0.81 6 0.81 3 0.81 2 0.81 8 0.81 3 0.81 4 0.81 3 0.81 3 0.81 3 0.83 3 0.82 8 0.82 5 0.81 5 0.81 3 0.81 4 0.81 5 0.81 3 0.81 0 0.81 2 0.81 0 0.81 1 0.81 2 0.81 7 0.81 2 Diameter s (in. )

. 0.81 5 . 0.81 5 0.81 5 0.81 3
0.81 5 0.81 5 0.81 0 0.81 2 • 0.83 2 0.81 0 0.80 8 0.81 2 0.81 2 0.81 0

0.82 0 0.81 6 0.81 1 0.81 3 0.81 3 0.81 2

0.81 2 0.81 2

0.81 5 0.81 4 

# 1

Note : Eac hpressur e represent s thre e trial s fo r a nozzle . I t shoul d b e note d ther e wa s n o measurabl e variatio n betwee n trial s fo r eac hnozzle .


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13 - 12 - 11 - 10 - 9 - 8 7 - 6 - 5 - 4 - 3 2 1 - 

# Stan t

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### ^0 4 .80 6 .80 8 .81 0 .81 2 .81 4 .81 6 .81 8 JQ20 .82 2 .82 4 .826.82 8 .83 0 .83 2 .83 4 .83 6 

## inche s FREQUENCYDISTRIBUTIO N O F NOZZL E DIAMETER S

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### 4. 5 5. 0 5^ 5 6! o 6^5 7. 0 7!5 8. 0 8^ 5 9^ 0 9^ 5 kP a 

## FREQUENCYDISTRIBUTIO N O F VACUU M REQUIRE D FO R NOZZL E SHUT-OFF .