SAE J189动力转向回油管(低压管)

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2024年4月6日发(作者：)

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VEHICLE

sTANDARD

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Issuθd 197oˉ

ReVised 2oo3ˉ

Superseding J189JAN1998

o8

o6

REˇ

JuN2oo3

Power

Steering

Return

Hose--l-ow Prmsure

Foreword-This document

represents

the minimum quality

recognized

by original

equipment

manufacturers

and

hose suppliers as

essential for

satisfactory and safe

operation by the

hose itself

and other

coacting

parts

of the

power

steering

system. The

original

equipment

manufacfurer may,

at his option,

add or alter

tests through

OEM

specifications.

1. Scope-This

SAE Standard

covers hose

fabricated from fabric

braid and synthetic

rubber,

assembled

with

end fittings or

user applied

clamps for use

in automotive power

steering

applications

as flexible

connections

within

the ternperature

range of

-40

oC

to +12O'C (-40

'F

to 25O

and

135

.C

(275

'F)

maximum

"F)

arerage

peaks.

Hose assemblies

shall be

suitable

for 1

.72 MPa

(250 psi)

maimum

working

pressure

with end

fittings

and 0.69 MPa

(100 psi)

maximum

pressure

working

with user applied

clamps.,"'

(:

Referenees

Applicable

Publications-The

herein.

following

publications

form a

part

of this specification

to the

extent specified

'l

2.

2.1

1.1 ASTM

PueLlcffioNs*Available

from ASTM, 10o

Barr Harbor Drive,

West ConshohocfenlEn

t942g-2959.

ASTM

D 380-Methods

of Testing Rubber

Hose

ASTM

D 413-Tests

for (Friction

Adhesion of Vulcanized

Rubber

Test)

J.

Hose

Construefion'-The

construction

of this

hose embodies

a smooth bore

inner

tube

of suitable

synthetic

rubber material,

ply

reinforced

with one

of braided

fabric and

covered with

a

qynthetic

rubber

outer cover.

Dimensions-Suggested

hose

dimensions

are

given

in Table 18, but

it is not

the intent

of this

document

to

exclude

hose with

different

dimensions

that

comply with

all other requirements

of this

document.

In addition,

concentricity

based on

full

indicator

reading between

the inside

bore

the

outer surface and

of the

hose

shall not

exceed 0.076

cm

(0.030

in).

4.

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Wntten comments and suggest°

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out the pfior w血

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en ρerm心

si°

Γoduced,stored in a retrieVaI system or Lansrniued`in any foΠ

n of SAE

η°r by any means,e丨

eGtronic,m∞

hanicaI,photocopying,

t0PLACE A DOCumE"T oRDER: teI: 877~eo0T323f"s∶

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注茗茹

W歹

sAE J刂

89Re刂sed JuN2oo3

T^BLE1A-lIOsE DIⅢ

ENsIONs(Ⅲ

Recommended

TRIC)

厍

Reco"i‘

Work∶

ηended Working

ng PⅠ

essure,

Tens"e Load, ,、

h user

Tens"e Load,

in,"pressure, max,"Pa

"ominaI "ominaI

ID OD,

cJn cm

:D OD

Tohra冂

∞

, ToIefanCe,

max,"Pa wⅡ

Jn:n,Ib Wkh user Burst

Wkh E"d ^ρ

Fi⒒∶ngs Chm,s m∶

ρ

Ihd s0e"gth

n,"p。

WⅡh End ^pp1bd

F∶∮∶ngs clamps

cgn om

o,991/o,874 1.74B/1.588

⒕BLE1叫

0sE DIⅢ

ENsIONs(ENGLIsH)

Recommended

Working

Presslrre,

max,

psi

llYith User

Applbd

Clampe

Reco""η

Wor陌

ρressu了

ended

ng

e,

TensⅡ

e Load,

T0nsⅡ

e Load, min,lb

m∶n,lb Wnh usσ

Wkh End ^ppⅡ

FIuIngs cIamps mIn,,s∶

Burst

ed sLe"gth

Nominal

ID

in

"om∶

naI ∶

D

,

oD, Tohran∞

∶

n ∶n

OD

Tolerance,

ln

maX,ρ

Wkh End

FI⒒∶

ngs

s∶

o。390/o.344 /o.625

⒌ 尼sf ProεeJEJres-Procedures described in AsTM D38o,shaⅡ

be

ε.

Qualificatrbn lests-To

qualify

hose under this

document,

all of the

met.

`"specfJo刀

Tesfs-Produmon shipments orIots σ

f quaIified hose shaⅡ

be f

g

must be

in

a'rfrienlwn Section

M扪

而ue2

⒎

and shall conform to the

applicable

test requirements,

but

the user may

test

姜艹巍窑江

test or tests that

have failed shall

be retested using

twice the number

of samples indicated

in Table 2. Faipre

of any of the"retested

samples

shall be cause for rejection

of the entire lot.

sefected at random,

as listed

in Table 2, are

required to conduct

a complete test. In)S'event

of a faiJure,

the

or all such

production

shipments or lots

to all the test requirements.

Fourte

from

any

hose assemblies,

T^BLE2-丬

NsPECⅡ

0N TEsTs

Samples

Required

1,Length change(9,10)b丨

2. Tens‖

Temρ

4, Adhesion(9,4)

5,Impu|se lg.1)

e(9.2)

eratuFe F丨

e兔

bility lg,3)

bwed by Bursting strength(9.5)

3

3

1

1

6

8.

Frequency of Testing

for lnspection-All

inspection

tests except impulse

shall be

performed

on either a bulk

hose lot or a coupled hose

lot basis or tests

may be split between

a bulk hose lot and a

coupled hose

lot.

A coupled hose lot shall

not expeed 10

00O hose assemblies and

a bulk hose lot shall

not exceed 60g6

m

(20

000 ft) of bulk hose.

ˉ

2ˉ

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