Vega VEGAMAG 81 Wiring diagram

Supplementary instructions
Magnetic level gauge for continuous
level measurement in bypass pipes
VEGAMAG 81
Document ID: 44905

2
Contents
VEGAMAG 81 •
44905-EN-190118
Contents
1 Product description ................................................................................................................. 3
1.1 Conguration.................................................................................................................... 3
2 Mounting................................................................................................................................... 6
2.1 Mountinginstructions ....................................................................................................... 6
3 Supplement .............................................................................................................................. 7
3.1 Technicaldata .................................................................................................................. 7
3.2 Dimensions ...................................................................................................................... 9
Editingstatus:2019-01-17

3
1Productdescription
VEGAMAG 81 •
44905-EN-190118
1 Product description
1.1 Conguration
TheVEGAMAG81isabypasspipewithmagneticlevelgauge(refer-
encevessel).
0 %
100 %
A
M
C
E
B
B
D
1
Fig. 1: Typical conguration of the VEGAMAG 81
1 Magnetic level gauge
A Chamber closing - top
B Vessel connection top/bottom
C Chamber closing - bottom
D Drain connection
E Vent connection (optional)
M Dimension: Pipe center to pipe center
Thefollowingversionsarepossible:
Featuresandttingsof
thebypasspipe
Versions

4
1Productdescription
VEGAMAG 81 •
44905-EN-190118
130mm (A) / 100 mm (B)
(5.12" (A) / 3.94" (B) )
X
A
M
U
C
E
B
B
D
Fig. 2: Versions VEGAMAG 81
1 Version: Side - Side (two connections)
A Chamber closing - top
B Vessel connection top/bottom
C Chamber closing - bottom
D Drain connection
E Vent connection (optional)
M Dimensions: pipe center to pipe center, 300 … 4000 mm (11.8 … 157.5 in)
U Dimension: Pipe center to ange surface of the lower chamber closing (depending on the density of the
medium)
X Dimensions: length from pipe center to connection ange, 150 … 400 mm (5.91 … 15.75 in)

5
1Productdescription
VEGAMAG 81 •
44905-EN-190118
1 2 3
4 5 6
ED
ED
ED
ED
Fig. 3: Possible chamber closings (A, C) and vent connections (E) or drain connections (D)
1 Vent connection - Flange with thread G½ or ½ NPT
2 Chamber closing - top (without vent connection)
3 Vent connection - Flange with ange connection
4 Vent connection - Pipe cap welded to thread G½ or ½ NPT
5 Pipe cap welded (without vent connection)
6 Vent connection - Pipe cap welded to ange connection
Note:
Keepinmindfortheplanningthatontoporbottomatleastoneange
connectionisrequiredsothattheoatcanbeinsertedinthemeasur-
ingpipeandalsoremoved.

6
2Mounting
VEGAMAG 81 •
44905-EN-190118
2 Mounting
2.1 Mounting instructions
Thesealsforthevesselconnections(B)andtheventconnection(E)
mustbeprovidedbythecustomer.
Thegasketsforthechamberclosingontop(A),thechamberclosing
atthebottom(C)andthedrainconnection(F)areenclosedtothe
shipment.Youcanndthesealmaterialsinchapter"Technical data".
Beforeuse,checkifthesealmaterialisresistantagainstthemedium,
theprocesspressureandtheprocesstemperature.
ClosealldrainconnectionsbeforethesetupofVEGAMAG81.Check
ifallconnectionsofVEGAMAG81aretight.
Amountedbypasspipemustalsowithstandanypressuretestthat
mightbecarriedoutonthevessel.Keepthepressurespecicationon
thetypelabelinmind.
Caution:
Removetheoatfromthepipebeforeyoustartthepressuretest.
Seals
Close openings
Vessel pressure test

7
3Supplement
VEGAMAG 81 •
44905-EN-190118
3 Supplement
3.1 Technicaldata
Generaldata
Material316Lcorrespondsto1.4404or1.4435
Measurementrequirement Productdensitymustbeknownandconstant
Materials
Ʋ Bypasspipe 316L
Ʋ Float Titanium
Ʋ Magnetgauge-Housing Aluminiumorstainlesssteel
Ʋ Magnetgauge-Displayelements Plasticorstainlesssteel
Colourofthemagnetgauge yellow/blackorred/white
Gasket-Chamberclosings(top/bottom)
Ʋ max.250°C/40bar(482°F/580psig) KlingersilC-4500
Ʋ max.390°C/40bar(734°F/580psig) Graphite
Pipediameter(outer)
Ʋ Version2" ø60.3mm(2.37in)
Wallthickness 2…5.54mm(0.08…0.22in)
Processtemperature max.390°C(734°F)-seeprocesstting,connection
ange(B)
Processpressure
Ʋ Standardversion seeprocesstting-connectionange(B)
Ʋ Accordingtopressuredevicedirective
(PED)
max.90bar(1305psig)-Cat.III,FluidgroupI
Ʋ AccordingtoASME max.100bar(1450psig)
Chamberclosing-top(A)
Pipecap
FlangefromDN50or2"
Processtting-connectionangetop/bottom(B)
Connections Weldedsocketfrom½",stubendfrom½",threadfrom
½NPT,angesfromDN15or½"
Processpressureinbar(psig)dependingontheprocesstemperature
Pressure-Temperature-Assignment-DINanges
Material316/316L(1.4401)
Pressure
range
100°C 150°C 200°C 250°C 300°C 350°C 390°C
PN 40 40bar 36.3bar 33.7bar 31.8bar 29.7bar 28.5bar 27.4bar
PN 63 63bar 57.3bar 53.1bar 50.1bar 46.8bar 45.0bar 43.2bar
PN 100 100bar 90.9bar 84.2bar 79.5bar 74.2bar 71.4bar 68.5bar

8
3Supplement
VEGAMAG 81 •
44905-EN-190118
Pressure-Temperature-Assignment-ASMEanges
Material316
Temperaturerange Class150 Class300 Class400 Class600 Class900 Class
1500
Class
2500
-29…+38°C 19bar 49.6bar 66.2bar 99.3bar 148.9bar 248.2bar 413.7bar
50°C 18.4bar 48.1bar 64.2bar 96.2bar 144.3bar 240.6bar 400.9bar
100°C 16.2bar 42.2bar 56.3bar 84.4bar 126.6bar 211bar 351.6bar
150°C 14.8bar 38.5bar 51.3bar 77bar 115.5bar 192.5bar 320.8bar
200°C 13.7bar 35.7bar 47.6bar 71.3bar 107bar 178.3bar 297.2bar
250°C 12.1bar 33.4bar 44.5bar 66.8bar 100.1bar 166.9bar 278.1bar
300°C 10.2bar 31.6bar 42.2bar 63.2bar 94.9bar 158.1bar 263.5bar
325°C 9.3bar 30.9bar 41.2bar 61.8bar 92.7bar 154.4bar 257.4bar
350°C 8.4bar 30.3bar 40.4bar 60.7bar 91.0bar 151.6bar 252.7bar
375°C 7.4bar 29.9bar 39.8bar 59.8bar 89.6bar 149.4bar 249bar
390°C 6.5bar 29.4bar 39.3bar 58.9bar 88.3bar 147.2bar 245.3bar
Tab. 2: ASME B16.5-2013
Note: Youwillndacompleteoverviewoftheavailablepro-
cessttingsinthe"congurator"onourhomepageat
www.vega.com/congurator.
Chamberclosing-bottom(C)
Pipecap
FlangefromDN50or2"
Drainconnection(D)
ThreadG½(DIN3852-A),½NPT(ASMEB1.20.1)
ThreadG¾(DIN3852-A),¾NPT(ASMEB1.20.1)
FlangeDINfromDN15
FlangeASMEfrom½"
Ventconnection(E)
ThreadG½(DIN3852-A),½NPT(ASMEB1.20.1)
ThreadG¾(DIN3852-A),¾NPT(ASMEB1.20.1)
FlangeDINfromDN15
FlangeASMEfrom½"

9
3Supplement
VEGAMAG 81 •
44905-EN-190118
3.2 Dimensions
O
X
0 %
100 %
A
M
U
C
E
B
B
D
1
Fig. 4: Magnetic level gauge VEGAMAG 81
1 Magnetic level gauge
A Chamber closing - top
B Vessel connection top/bottom
C Chamber closing - bottom
D Drain connection
E Vent connection (optional)
M Dimensions: pipe center to pipe center, 300 … 4000 mm (11.8 … 157.5 in)
O Dimension: Pipe center to ange surface of the upper chamber closing, 152 mm (6 in)
U Dimension: Pipe center to ange surface of the lower chamber closing (depending on the density of the
medium)
X Dimensions: length from pipe center to connection ange, 150 … 400 mm (5.91 … 15.75 in)

10
Notes
VEGAMAG 81 •
44905-EN-190118

11
Notes
VEGAMAG 81 •
44905-EN-190118

Printing date:
VEGA Grieshaber KG
Am Hohenstein 113
77761 Schiltach
Germany
44905-EN-190118
All statements concerning scope of delivery, application, practical use and operat-
ing conditions of the sensors and processing systems correspond to the information
available at the time of printing.
Subject to change without prior notice
© VEGA Grieshaber KG, Schiltach/Germany 2019
Phone [phone]
Fax [phone]
E-mail: [email protected]
www.vega.com