pressure gauges gb

7/25/2019 Pressure Gauges GB

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Training courseTraining course

PressurePressuregaugesgauges


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HistoryHistory

1849: first test of Bourdon tube flat curved tube

Patented by Eugne Bourdon on: 18 / une / 1849


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P!E""#!E !E$E!E%&E"P!E""#!E !E$E!E%&E"

'ifferenti

Pressure

gauge

(ressure

)t*+os(*,ric

(ressure

)bsolute

(ressure

)bsolute vacuu+

- t*eorical li+it

)t*+os(*eric (ressure

-fluctuating li+it .ine (ressure

-or static (ressure .

vacuu+

P gauge 0 P absolute P at*+os(*,ric


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'iff,rent ty(es'iff,rent ty(es

Pig tail tubePig tail tube

-fro+ 23 bar to-fro+ 23 bar to

333bar.333bar.

Bourdon tube orBourdon tube or & tube & tube

-fro+ 433+bar to-fro+ 433+bar to

23bar.23bar.

&a(sule&a(sule-fro+ 3 to 233-fro+ 3 to 233

+bar.+bar.


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Bello5s:Bello5s:

+ounted in+ounted indifferentialdifferential

(ressure gauges(ressure gauges

'iff,rent ty(es'iff,rent ty(es

-continued.-continued.

"(iral tube:"(iral tube:

6ounted in ga76ounted in ga7

t*er+o+eterst*er+o+eters


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6ove+ent a+(lifier6ove+ent a+(lifier&a(sule (ressure gauge&a(sule (ressure gauge


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6anufacturing of6anufacturing of

Bourdon tubeBourdon tube

!a5 +aterial: de(end on fluid in contact!a5 +aterial: de(end on fluid in contact

5it* and eternal environne+ent 5it* and eternal environne+ent

"teels "teels

brassbrass

6onel 6onel

12 stainless steel 12 stainless steel

B,rylliu+ co((er B,rylliu+ co((er

'iff,rentes tube cross section availables'iff,rentes tube cross section availables

;ube t*ic


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'ifferent cross section of tubes

according (ressure range

bar

bar

barbarbar


Bourdon tubes -follo5.Bourdon tubes -follo5.


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Princi(al re=uire+entsPrinci(al re=uire+ents

>ood resilience>ood resilience *o+ogeneous +aterial*o+ogeneous +aterial

di+ension and t*ic


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;ube connector;ube connector

asse+blyasse+bly

>eneraly s(eaeneraly s(ea.-;C>.


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Bourdon tube 5it*Bourdon tube 5it*

+ecanis+ and needle+ecanis+ and needle

Crss

section

Dplacement


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Basic (rinci(le ofBasic (rinci(le of


"tub ale

%eedle

$itting

) )

&ross section ))

'is(lace+ent of tube

&og sector of

circle

Bourdon tube


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Para+eters ta


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)+ount of travel)+ount of travel

F G3 and 2F G3 and 2

Bron7e tube: travel0A8 3ABron7e tube: travel0A8 3Astainless steel tube: travel0A 3Astainless steel tube: travel0A 3A

F 133F 133

Bron7e tube: P0 34 bar:travel0GBron7e tube: P0 34 bar:travel0G P0 43 bar:travel0GP0 43 bar:travel0G

stainless steel tube:stainless steel tube:

P0 23 bar:travel04GP0 23 bar:travel04G

P0 1233 bar:travel0AIP0 1233 bar:travel0AI


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Dor


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$irst (ressurisation$irst (ressurisation

-non elastic-non elastic

defor+ation.defor+ation.

) (ressure is a((lied above t*e) (ressure is a((lied above t*e

+ai+u+ of t*e +easure+ent+ai+u+ of t*e +easure+entrange-3J. for a fe5 +o+entrange-3J. for a fe5 +o+ent

;*is as t*e effect of ensuring;*is as t*e effect of ensuring

t*at defor+ation elastic acrosst*at defor+ation elastic across

t*e +easure+ent ranget*e +easure+ent range

)nd t*e +odulus of elasticity)nd t*e +odulus of elasticity

and li+it of (ro(ortionnality areand li+it of (ro(ortionnality are

increasedincreased


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;er+inology of;er+inology of

calibration andcalibration and

+etrology+etrology

6etallic (ressure gauges -see standard6etallic (ressure gauges -see standard

E% 8I.E% 8I.

)ccuracy:)ccuracy:

accuracy is t*e +ai+u+ allo5ableaccuracy is t*e +ai+u+ allo5able

error e(ressed as a (ercentage of t*eerror e(ressed as a (ercentage of t*e

+easure+ent range P+easure+ent range P )ccuracy class)ccuracy class::

t*e accuracy class of an instru+ent ist*e accuracy class of an instru+ent is

conventionnally defined as t*econventionnally defined as t*e

greatest value of t*e +ai+u+greatest value of t*e +ai+u+allo5able error over t*e s(ecifiedallo5able error over t*e s(ecified

+easure+ent range+easure+ent range


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'is(lace+ent of Bourdon'is(lace+ent of Bourdon

tube (ara+eterstube (ara+eters

6aterial

'ia+eter and arc

"ection

Dor


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Cnternal volu+e of t*eCnternal volu+e of t*e


;ube volu+e:

Ct is internal volu+e of t*e tube 5it* P03

)bsorbed volu+e:

;*e volu+e of t*e tube increase 5it* (ressure

a((lied

t*is value is +easured in laboratory

;*is (ara+eter is i+(ortant 5*en 5e use

c*e+ec*al seals associated 5it* t*e gauge


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'ifferent (arts of'ifferent (arts of

(ressure gauge(ressure gauge


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6ounting different ty(es of6ounting different ty(es of

(ressure fittings(ressure fittings

"ealing gas


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6ounting (ressure gauges6ounting (ressure gauges

in case of vibrationsin case of vibrations

>lycerin bat*


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Pressure gauge +ounting in casePressure gauge +ounting in case

of *ig* fluid (rocess te+(eratureof *ig* fluid (rocess te+(erature

Hot fluid

"CPH%


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>auges +ounted on>auges +ounted on

c*e+ical sealsc*e+ical seals

This application is described in the training

manual : chemical seals.


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>auges +onting to avoid>auges +onting to avoid

NOYES

%ever tig*t a gauge *olding it by t*e case

Tight the the fitting ith a spanner as shon


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Pressure gaugePressure gauge

+ounting 5it* da+(ener+ounting 5it* da+(ener

'a+(ener


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Pressure gauges 5it*Pressure gauges 5it*

contactcontact

'ifferent


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Pressure gauges 5it* contacts:Pressure gauges 5it* contacts:

diff,rents ty(es de contactsdiff,rents ty(es de contacts

'ry contacts:

&ontacts 5it* +agnets

inductives contacts


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&onnection of inductive contacts&onnection of inductive contacts

SI Zone

Connections to

gauge

Safe zone


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&ontrol fonctions of t*e differents&ontrol fonctions of t*e differents

contact setscontact sets

!ef: 13A

6ini

!ef: 31A

6ai

%$

%

&ontact o(en

&ontact close


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!ef: 3116ai+ai

6ai+ini

&ontact o(en

&ontact close

!ef: 111


contact sets -follo5.contact sets -follo5.


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&ontact o(en

&ontact close

!ef: 131

6ini+ai

6ini+ini

!ef: 113




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&ontact o(en

&ontact close

!ef: 313ACnterinde

Cnterinde!ef: 131A




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Environne+ent influence:Environne+ent influence:

(rotection inde -E%23GA9.(rotection inde -E%23GA9.Protection level of an a((aratus is given by CP follo5ed by t5o nu+bers according

t*e follo5ing c*art

Ee+(le: CP2G

Fist number :protection

against solid bodies

Second number :protection

against liquids


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Pressure gauge +ountingPressure gauge +ounting

ack flange,

ottom

onnection

back lugs

ottomonnection

Front flange,

back

connection

Front flange,

bottom

connection

Flangeless

bottom

connection

3 back lugs

back

connection

Flangeless

back

connection

Front flange

strap fiingback

connection

Back flange

back

connection


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Basic =uestions toBasic =uestions tos(ecify a (ressure gauges(ecify a (ressure gauge


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1: &ase dia+eter-codification: 4.

c*oose t*e dia+eter in ++:

43 G3 2 83 133 1G3 123

A: (ressure range and unit:

-codification: 13 111A.

K bar

K+bar

K(si

Kot*er -(lease give range and units .

: "ensing ele+ent +aterial:

Process fluid

fluid te+(,rature +a /+in

&orrosive fluid: LE" %

4: &ase +aterial:

-codification: A et.

Plastic

"teel

"tainless steel

G: 6ounting ty(e:

-codification: 2. c*oice a+ong follo5ing +ounting

) B & ' E $ > -see details.

Basic =uestion to defineBasic =uestion to define



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2: Pressure fitting:

-codification: I.

>1/A)

1/A %P;

t*er-to be defined.

I: )ccuracy class:

"tandard

t*er-to be defined.

8: (ressure reference

>auge (ressurevacuu+

&o+(ound

'ifferential (ressure

9: Eventual co+(le+entary =uestions:

-codification: 8.: 'ry case

i=uid filled case against vibrationsver(ressure -give value.:

KKKKKKKKKKKK

Protection inde:

"tandard case

ot*er -give value.

Eventual electrical contacts:

&E" &E") &EC &ECM!"C -)'$.

1 contact

A contacts

)ccording at*+os(*ere

co+(osition


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13: t*er (articular features to be

defined

11: Eventual accessories

&a(illary tube

"i(*on

)da(tor fitting

'a+(ener

valve

restrictor scre5

&*e+ical seal

ot*er


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Euro(een nor+alisationEuro(een nor+alisation

%or+ E#

"ensing ele+ent

+aterial "ensing

ele+ent ty(e

)ccuracy class

)ccuracy li+it


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)ccuracy)ccuracy

)ccuracy is +ost fre=uently 1J)ccuracy is +ost fre=uently 1J

of t*e +easure+ent range bet5eenof t*e +easure+ent range bet5een

1/4 and /4 of t*e +ai+u+ scale1/4 and /4 of t*e +ai+u+ scale

t*er accuracy classes:t*er accuracy classes:

!." #$ #$." # %.& # '!." #$ #$." # %.& # '

&alibration and verification&alibration and verification

version:version:!.%& # !.&!.%& # !.&

laboratory versionlaboratory version

!.$!.$


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)ccuracy of a (ressure gauge)ccuracy of a (ressure gauge

E%8IE%8I

)ccuracy class:1

-+eans 1J of full scale.


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)ccuracy class:12

-+eans 12 J of $".

Cnde 5*ic*

s*o5s li+it of

accuracy class

)ccuracy of a (ressure gauge)ccuracy of a (ressure gauge

E%8I -ot*er ee+(le.E%8I -ot*er ee+(le.


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6C; 6C;G6C; 6C;G


"" caseA 1/AN and 4Ndia+eters -6C;6C;G."" caseA 1/AN and 4Ndia+eters -6C;6C;G.

)B" case A 1/A N dia+eter -66P.)B" case A 1/A N dia+eter -66P.

)ntivibrating syste+)ntivibrating syste+

$illed 5it* da+(ening li=uid$illed 5it* da+(ening li=uid


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Process control gaugeProcess control gauge

6;!6;!

$ro+ 3 MAbar -33(si. to 3M11 bar$ro+ 3 MAbar -33(si. to 3M11 bar

-3M123(si. in four ranges-3M123(si. in four ranges

tri(le graduations: bar


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Cndustrial (ressure gaugeCndustrial (ressure gauge

ty(e 66ty(e 66

&ase:sta+(ed brass&ase:sta+(ed brass

!ange fro+ 1M3 to 3 M 233 bar -8I33(si.!ange fro+ 1M3 to 3 M 233 bar -8I33(si.

class12class12

5ater tig*t can be filled 5it* da+(ening5ater tig*t can be filled 5it* da+(ening

li=uid -BH.li=uid -BH.


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Cndustrial gaugesCndustrial gauges

66)66)

F83 F133 F1G3 F123++F83 F133 F1G3 F123++

+o+entary over(ressure allo5ed+o+entary over(ressure allo5ed

;ig*tcan be filled 5it* a da+(ening;ig*tcan be filled 5it* a da+(ening

li=uidli=uid

class 1 accuracyclass 1 accuracy


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)ll stainless steel)ll stainless steel


66OA66O66OA66O

FG3 2++FG3 2++

designed for t*e c*e+ical (*ar+aceuticaldesigned for t*e c*e+ical (*ar+aceutical

industriesindustries

&lass12&lass12 #nits:bar(a (si


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Cndustrial stainless steelCndustrial stainless steel

6EO and +onel6EO and +onel

(ressure gauge 6E6(ressure gauge 6E6

F G3 2++F G3 2++

!obust to *ars* environne+ent and agressive!obust to *ars* environne+ent and agressive

fluidsfluids

Datertig*t can be filled 5it* a da+(eningDatertig*t can be filled 5it* a da+(ening

li=uidli=uid

class12 -o(tion:class 1.class12 -o(tion:class 1. all ss -6EO. and +onel tube-6E6.all ss -6EO. and +onel tube-6E6.


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Hig* (ressure industrialHig* (ressure industrial

gauge 6$PIgauge 6$PI

3A333to 3 4333 bar3A333to 3 4333 bar

Hig* (ressure gaugeHig* (ressure gauge &lass 12&lass 12

"afety s*ield"afety s*ield


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Cndustrial ca(suleCndustrial ca(sule


o5 (ressure +easure+ento5 (ressure +easure+ent

&lass12&lass12

"tandard version: 6;)G"tandard version: 6;)G

"tainless steel version:6;OG"tainless steel version:6;OG

Pressure range fro+ 233M3+bar to 3Pressure range fro+ 233M3+bar to 3

M233+barM233+bar


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'ifferential (ressure'ifferential (ressure

gauge 6'Ogauge 6'O

'ifferential (ressure +easure+ent fro+'ifferential (ressure +easure+ent fro+3 M31 bar to 3 MAG bar3 M31 bar to 3 MAG bar

"tatic (ressure:32 Q 133 bar"tatic (ressure:32 Q 133 bar

e=ui((ed 5it* bello5se=ui((ed 5it* bello5s


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"tainless steel gauge"tainless steel gauge

6EOG ty(e6EOG ty(e

'% 133++'% 133++ &lass 1&lass 1

vacuu+ andvacuu+ and

(ressure:1 3(ressure:1 3

barbar

gaugegauge

(ressure:(ressure:

31233 bar31233 bar


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>auge 5it* integrated>auge 5it* integrated

c*e+ical seal 6!)c*e+ical seal 6!)

&orrosive li=uids and lo5 viscosity&orrosive li=uids and lo5 viscosity

'%133++'%133++

class: 12class: 12

!ange: 23+bar Q AG bar!ange: 23+bar Q AG bar


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Pressure gauge 6P>Pressure gauge 6P>

$or (etroleu+ industry$or (etroleu+ industry

P*,nolic resin caseP*,nolic resin case

class: 3Gclass: 3G

!anges:1 3 Q 1 1233bar gauge!anges:1 3 Q 1 1233bar gauge


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Pressure gauge ty(ePressure gauge ty(e

6&LA class 133 6&LA class 133

Hig* (urityHig* (urity

for se+ifor se+i

conductorconductor

industryindustry

dry contactdry contact

includedincluded

pressure gauges gb

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