FEATURES
• The monostable spool valves in conformity with IEC 61508 Standard (2010
route 2
H
version) have TÜV (551 series) and EXIDA (551-553 series) certified
with integraty levels: SIL 2 for HFT = 0 / SIL 3 for HFT = 1
• Series 551 versions according to ATEX 94/9/EC, for zones 0, 1 and 2 and series
553 air-operated versions for zones 1 and 2
• All the exhaust ports of this spool valve are connectable, providing better
environmental protection, particularly recommended for sensitive areas such as
clean rooms, and applications in the pharmaceutical and food processing sectors
• The valve offers environmental protection against the ingress of liquids, dusts or
any other foreign matter (environmentally-protected construction)
• The solenoid valves satisfy all relevant EC Directives
GENERAL
Differential pressure 2-10,4bar[1bar=100

kPa]
Flow (Qv at 6 bar) 1/4=860l/min(ANR)
1/2=3000l/min
fluids ()
temperature range (TS)
seal materials ()
air,inertgas,ltered
-40°Cto+60°C
VMQ(silicone)+PUR(polyurethane)
MATERIALS IN CONTACT WITH FLUID
()
Ensure that the compatibility of the fluids in contact with the materials is verified
Air operated
CNOMO solenoid (pilot) interface
(Series 551-553) (Series 551)
Body, end covers
Stainlesssteel,AISI316L
Stainlesssteel,AISI316L
Spool valve internal parts
Stainlesssteel,POM
Stainlesssteel,POM
Seals NBR NBR
Pilot internal parts - Size30(E06.05.80N),
refertocataloguepages:
314/LPKFpilot(contact
us)and195pilot(LISC)
AIR OPERATED SPECIFICATIONS
pipe
size
orifice
size
flow
coefficient
kv
operating pressure
differential (bar)
prefix
optional
basic
catalogue
number
min.
max. (PS)
air ()
()
(mm) (m
3
/h) (l/min) ~ =
Pilot air operated - spring return (monostable)
1/4 6 0,75 12,5 2 10 10 - 551A113
(1)
1/2 13 2,49 41,5 2 10 10 - 553A113
(1)
Pilot air operated and return (bistable)
1/4 6 0,75 12,5 2 10 10 - 551A114
1/2 13 2,49 41,5 2 10 10 - 553A114
CNOMO SOLENOID (PILOT) INTERFACE SPECIFICATIONS
pipe
size
orifice
size
flow
coefficient
kv
operating pressure
differential (bar)
power
level
prefix optional solenoids
basic
catalogue
number
min.
max. (PS)
ATEX/IECEx
air ()
Exd Exia
()
(mm) (m
3
/h) (l/min) ~ = ~/=
(2)
LISC
Solenoid air pilot operated - spring return (monostable)
1/4 6 0,75 12,5 2 10 10 BP
l
- 551A213
(1)
1/4 6 0,75 12,5 2 - 8 LP -
m
551B213
Solenoid air pilot operated and return (bistable)
1/4 6 0,75 12,5 2 10 10 BP
l
- 551A214
1/4 6 0,75 12,5 2 - 8 LP -
m
551B214
Select8forNPTANSI1.20.3orselectGforISOG(228/1) ●AvailablefeaturemAvailablefeatureinDConly.
(1)
CertiedIEC61508FunctionalSafetydata,usesufx"SL".
(2)
314/LPKF:Contactus
3
2
1
SPOOL VALVES
pilot operated or air operated, spool type
single/dual solenoid (mono/bistable function)
stainless steel body, 1/4-1/2
NC
2
3
12
1
2
3
1
12
2
3
12
1
10
2
3
1
12 10
3/2
Series
551
553
80056GB-2014/R01
BP
RP - MP
LP
UP
Not
available 0,5W
Not
available 7,4W - 7,6W
Ultra Low
power
Low
power
Reduced and
Medium power
Basic
power
POWER LEVELS - cold electrical holding values (watt)
UK Office
5 Caulside Drive, Antrim, BT41 2DU
United Kingdom
TEL: +44 (0) 289448 1808
www.valves-direct.com
European Office
Unit 6, Saint Anthony’s Business Park, Ballymount Road, D22 VW95
Ireland
TEL: +353 (0) 1 4373653
www.valves-direct.com
Pneutrol International Limited
sales@pneutrol.com
PREFIX TABLE
prex
description
powerlevel
1 2 3 4 5 6 7 UP LP RP BP
(4)
Flameproof with pilot 314/LPKF, aluminium (EN 60079-1 / 60079-31)*
- - -
l
L I S C Intrinsically safe, pilot 195, ATEX (EN/IEC 60079-11+26, 61241-11)* -
m
- -
SUFFIX TABLE
sufx
description
powerlevel
1 2 3 4 5 6 7 UP LP RP BP
G D Non-electrical, 1 GD c (551)/ 2 GD c (553), gas/dust (EN 13463-5) - - - -
M S Screw type manual operator
(3)
- - -
l
S L
Certified IEC 61508 Functional Safety data
(1)
-
m
-
l
OPTIONS & ACCESSORIES
series
pipe
size
stainless steel
exhaust protector
G NPT
551 1/8 34600418
(2)
34600482
(2)
551 1/4 34600419
(2)
34600483
(2)
553 1/2 34600479
(2)
34600479
(2)
l Availablefeature
m AvailablefeatureinDConly
- Notavailable

*

ATEXsolenoidsarealsoapprovedaccordingtoEN13463-1(nonelectricalvalves)
(1)
NottousewithMSsufx
(2)
Providedwith"SL"sufx
(3)
NottousewithLISCprex
(4)
314/LPKF:Contactus
SERIES 551-553
PRODUCT SELECTION GUIDE
STEP1
Selecttheuidtemperaturerangeand
sealmaterialfromthegeneraltable
onpage7.Selectbasiccatalogue
number,includingpipethreadidenti-
cationletter.Refertothespecica-
tionstablesonpage7.
Example : G551B213
STEP2
Selectprex(combination).Selectthe
appropriateoperatorfromthetables
onpage7.Selectforthisoperatorin
theelectricalcharacteristicstableon
page9:thepowerlevel(LP,BP),the
typeofelectricalenclosureprotection
andthedesiredtemperatureclass.
Warning: Theambienttemperature
rangeofyourapplicationmaynot
exceedthetemperaturerangeofyour
operator.
Airoperatedversion,doesnotuse
prex.
Example : LISC
STEP3
Selectsufx(combination)ifrequired.
Refertothesufxtable,respectthe
indicatedpowerlevel.
GDsufxavailableforairoperated
versiononly(donotusemanual
operatorsufx).
Example : -
STEP4
Selectvoltage.
Refertostandardvoltagesonpage15.
Example : 12..24 V
STEP5
Finalcatalogue/orderingnumber.
Example :
LISC G551B213 12..24 V
ORDERING EXAMPLES:
LISC G 551B213 12..24V / DC
LISC G 551B214 12..24V / DC
G 551A113
G 551A113 GD
G 551A113 GDSL
G 551A114
G 553A113
G 551A114 GD
prex
pipethread
voltage
basicnumber
sufx
80056GB-2013/R02
UK Office
5 Caulside Drive, Antrim, BT41 2DU
United Kingdom
TEL: +44 (0) 289448 1808
www.valves-direct.com
European Office
Unit 6, Saint Anthony’s Business Park, Ballymount Road, D22 VW95
Ireland
TEL: +353 (0) 1 4373653
www.valves-direct.com
Pneutrol International Limited
sales@pneutrol.com
SERIES 551-553
EXPLANATION OF TEMPERATURE RANGES OF SOLENOID VALVES
Valvetemperaturerange Thevalvetemperaturerange(TS) isdeterminedbytheselectedsealmaterial,thetemperature
rangeforproperoperationofthevalveandsometimesbytheuid(e.g.steam)
Operatorambienttemperaturerange Theoperatorambienttemperaturerangeisdeterminedbytheselectedpowerlevelandthe
safetycode
Totaltemperaturerange Thetemperaturerangeofthecompletesolenoidvalveisdeterminedbythelimitationsofboth
temperaturerangesabove
ELECTRICAL CHARACTERISTICS
Coil insulation class F
Electrical safety IEC335
Standard voltages DC(=)
(5)
:24V-48V;
LISC:12..24V
CA(~)
(5)
:24V-48V-115V-230V/50Hz
-othervoltagesand60Hzareavailableonrequest
prefix
option
power ratings
operator
ambient
temperature
ranges (TS)
safety code
electrical
enclosure
protection
(EN 60529)
replacement coil
type
(1)
inrush
~
holding
~
hot/cold
=
~ =
(VA) (VA) (W) (W) (C°)
- -
Basic power (BP)
(5)
8,6 1,6 7,4 6/7,6 -25à+80 II2GExdIIB+H2GbT4,II2DEctIIICDb aluminiumIP65 - - 01
Low power (LP)
LISC
(3)(4)
- - - 0,5 -40to+65
II1GExiaIICT6Ga,II2DExibIIICDb
(3)
mouldedIP65 - - 02
- Notavailable
(1)
Refertothedimensionaldrawingsonpage12.
prefix
option
safety parameters
(3)
Min.operatingcurrent(I(ON)
min.):0,036A/U(ON)
min.=12,8V(For use in zone 0
locations, see the installation conditions given in the I&M instructions)
(4)
Intrinsically safe pilots: Check the electrical characteristics in the corresponding catalogue
pages(LISC:19500036/LISCpilot).
(5)
314/LPK:Contactus
U
I
=(DC) I
I
P
I
L
I
C
I
(V) (mA) (W) (H)
(µF)
Low power (LP)
LISC
30 300 1,6 0 0
ELECTRICAL CONNECTIONS
prefix connection
(5)
Conduitsd'entréedecâble1/2"NPT.Boîtierfournisanspresse-étoupe.
LISC
SpadeplugconnectorwithcableglandEN175301-803A(ISO4400)forcableswithanouterdiameterfrom6to8mm
ADDITIONAL OPTIONS
• Mountingonaluminiumsupplyrail,1/4or1/2
• Otherpipethreadsareavailableonrequest
INSTALLATION
• Installation/maintenanceinstructionsareincludedwitheachvalve
• Thevalvescanbemountedinanypositionwithoutaffectingoperation
• Donotconnectthepressuresupplytotheexhaustport3.The"environmentally-protected"constructionisnotadaptedfora
"distributing"function
• IEC61508FunctionalSafety(sufxSL).Checktemperaturerangeofvalvebodyandsolenoidforsuitability.Forprobabilityof
failure,contactus
• Itisnecessarytoconnectpipesorttingstotheexhaustportstoprotecttheinternalpartsofthevalveifusedoutsideorinharsh
environments(dusts,liquidsetc.)
• Threadedpipeconnectionidentieris:8=NPT(ANSI1.20.3);G=G(ISO228/1)
• Valveswithsufx"SL"areprovidedwithspecicexhaustprotectors
80056GB-2014/R01
UK Office
5 Caulside Drive, Antrim, BT41 2DU
United Kingdom
TEL: +44 (0) 289448 1808
www.valves-direct.com
European Office
Unit 6, Saint Anthony’s Business Park, Ballymount Road, D22 VW95
Ireland
TEL: +353 (0) 1 4373653
www.valves-direct.com
Pneutrol International Limited
sales@pneutrol.com
DIMENSIONS (mm), WEIGHT (kg)
TYPE 01:
314pilot/LPKFoperator
EN/IEC60079-1andEN/IEC60079-31
551: Contact us
TYPE 02:
LISC
Aluminium
IEC335/EN60079-11/26andEN/IEC61241-11
551B213 / 551B214
TYPE 03:
Noprex,IP65
[sufxes551:GD(II1GDc);SL(SIL);
GDSL(SIL,II1GDc)
sufxe553:GD(II2GDc);SL(SIL);
GDSL(SIL,II2GDc)]
Airoperatedversion
551A113 / 551A114
SERIES 551-553
type prefix option power level
weight
(1)
monostable bistable
551 553 551 553
01
(2)
basicpower 1,24 - 1,96 -
02 LISC lowpower 0,68 - 0,93 -
03 - - 0,33 2,14 0,41 2,01
(1)
Incl.connector(s),exceptCFVT.
(2)
314/LPKF:Contactus
ACCESSORIES
B
ØA
B
ØA
ØA - 1/8 1/4 1/2
B - 10 11 14
exhaust protector
(stainless steel)
1
Connectorrotatableby90°increments(cable6-8mm)
2
Manualoperatorlocation
3
Exdcertiedcablegland(onrequest)
Connectablepilotexhaustport
Non-connectablepilotexhaustport
Type 01-02: CNOMO (Series 551)
size 30 (E06.05.80)
Type 03: Air operated
61,5
113
45
=
=
32
=
=
33
129,5
134
27,5
==
31
2
32 1
3 x 1/4
51
A
1
2
3
3
12 10
1
61
112
133
45
=
=
27,5
=
=
32
=
=
3 x G1/4
G1/8
50.5
33
2
12,5
9,5
A
1
1
2
2
3
3
3 x 1/2
74,9
134,5
162
19,4
12,2
78,5 16
40,2
==
72,3
=
=
51
=
=
G1/4
B
Series 551 Series 553
45
141
194
110
1
13
M5
133
112
45 27,5
1
1
2
2
3
3
134,5
162
40,2
==
72,3
=
=
553A113 / 553A114
2mountingholes
A
5.3mmdia.;Spotfacing:9mmdia.,depth5mm
B
6.5mmdia.;Spotfacing:11mmdia.,depth6mm
PIC-04-0045-GB--Availability,designandspecicationsaresubjecttochangewithoutnotice.Allrightsreserved.
80056GB-2014/R02
183
276
2
13
1/2 NPT
35
98
56
75,5
43
3
360°
1/8 NP
UK Office
5 Caulside Drive, Antrim, BT41 2DU
United Kingdom
TEL: +44 (0) 289448 1808
www.valves-direct.com
European Office
Unit 6, Saint Anthony’s Business Park, Ballymount Road, D22 VW95
Ireland
TEL: +353 (0) 1 4373653
www.valves-direct.com
Pneutrol International Limited
sales@pneutrol.com