Asco SOLENOID VALVES User Manual
SOLENOID VALVES
2
1
3
direct operated, high flow
balanced poppet
1/4 to 1/2
FEATURES
• The valves are certified according to IEC 61508 Functional Safety data and have
SIL-3 capability (TÜV & Exida certification)
• The solenoid valves are recommended for pilot applications with high flow, wide
pressure ranges and no minimum operating pressure
• Coils used in metal enclosures have class H insulation materials
•
The core movement is guided to ensure optimal alignment. The special low friction
seal accomplishes a balanced construction at the specified temperature and
pressure range at minimum power levels
• Special rider rings eliminate sticking and provide exceptional service life
• No minimum operating pressure required
• Pressure can be applied at any port
• 316L stainless steel construction for highly corrosive atmospheres
• The solenoid valves satisfy all relevant EU directives
• Manual Operators are optional including an under pressure removable type
• Environmental NACE compliant and certified vibration resistant in combination
with WSCR solenoids
GENERAL
Differential pressure 0 - 10 bar [1 bar = 100kPa]
Response times < 100 ms
3/2
U
Series
327
fluids ()
air, inert gas
(1)
Can be limited by the operator ambient temperature range for explosion proof solenoids
temperature range (TS)
- 25 to + 60°C
- 10 to + 90°C
- 50 to + 60°C
(1)
seal materials ()
NBR (nitrile)
FPM (fluoroelastomer)
(F)VMQ ((fluor)silicone)
MATERIALS IN CONTACT WITH FLUID
()
Ensure that the compatibility of the fluids in contact with the materials is verified
Brass body Stainless steel body
Body Brass AISI 316L SS
Stem Stainless steel Stainless steel
Core tube Stainless steel Stainless steel
Core and plugnut Stainless steel Stainless steel
Springs Stainless steel Stainless steel
Seals NBR, FPM or (F)VMQ NBR, FPM or (F)VMQ
Rider ring PTFE PTFE
SPECIFICATIONS
operating pressure
differential (bar)
max. (PS)
min.
air (
~/= ~/= EF NF WSCR
power
level
NEMA
)
7&9
pipe
orifice
size
size
(mm) (m3/h) (l/m)
flow
coefficient
Kv
U - Universal, NBR sealings and poppets
1/4 12 1,5 25,0 0 10 BP 1/2 12 1,5 25,0 0 10 BP -
U - Universal, FPM sealings and poppets
1/4 12 1,5 25,0 0 10 BP 1/2 12 1,5 25,0 0 10 BP -
U - Universal, (F)VMQ sealings and poppets
1/4 12 1,5 25,0 0 10 BP 1/2 12 1,5 25,0 0 10 BP -
Select 8 for NPT ANSI 1.20.3 or Select G for ISO G(228/1) ● Available feature
(2)
Not in combination with WSCR solenoids
prefix optional solenoids
ATEX/IECEx
Ex db Ex eb mb Ex mb
WSCREM PV SC
EM
1
2
3
MP
RP
LP
Not
Available
Low
power
POWER LEVELS - cold electrical holding values (watt)
IP65
-
-
-
-
-
-
Available feature in DC only - Not available
Not
Available
Reduced
power
brass
327A647 327A648
327A607 327A608
327A649 327A650
327A609 327A610
327A645 327A646
327A605 327A606
Not
Available 8W - 14,1W
Medium
power
basic
catalogue
number
(2)
stainless steel
All leaflets are available on: www.asco.com
BP
Basic
power
80021GB-2018/R01
1
SERIES 327
PREFIX TABLE
prefix
1 2 3 4 5 6 7
E M Waterproof IP66/67 - Metal enclosure (EN/IEC 60079-7,-18 and -31)* - - -
E T
N F
S C
W P
W S
W S C R Flameproof 316L SS (EN/IEC 60079-0+1+31)* - - W S C R E M Increased Safety / Encapsulated 316L SS (EN/IEC 60079-0+7+18+31)* - - W S E M
W S N F
T
* ATEX/IECEx valves using these solenoids are approved according to EN 13463-1 (non electrical)
Threaded conduit/hole (M20 x 1,5) - - Flameproof - Aluminium (EN/IEC 60079-1, 60079-31)* - - Solenoid with spade plug connector (EN/IEC 60730) - - Waterproof IP67 - Metal enclosure - - Waterproof IP67 - 316 SS enclosure - - -
Waterproof IP66/67 - 316 SS enclosure (EN/IEC 60079-7,-18 and -31)* - - Flameproof - 316L SS (EN/IEC 60079-1, 60079-31)* - - Threaded conduit (1/2" NPT) - - -
X
Other special constructions - - -
description
power level
LP RP MP BP
SUFFIX TABLE
suffix
1 2 3 4 5
V FPM (fluoroelastomer) - - -
C O
M O
M S Screw type manual operator
● Available feature Available feature in DC only -Not available
(1)
Functional Safety certification is not applicable with this feature
(2)
Under pressure removable execution (see page 5)
Epoxy coating on all external surfaces - - Push type manual operator
description
(2)
(1) (2)
power level
LP RP MP BP
- - -
- - -
PRODUCT SELECTION GUIDE
STEP 1
Select the fluid temperature range and
seal material from the general table
on page 1. Select, based on the se-
lected seal material (if applicable), the
basic catalogue number. Also select
the pipe thread identification letter.
Example: G327A607
STEP 2
Select prefix (combination): Select
the appropiate operator from the
prefix table on the left. Select for this
operator in the electrical characteristics table on page 3: the power level
(LP,RP,MP,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 (see also on page 3
the section: Explanation of temperature ranges of solenoid valves).
Example: SC G327A607
OPTIONS & ACCESSORIES
catalogue number
SC 327A605 C117638
SC 327A606 C117638
SC 327A607 C117640
SC 327A608 C117640
SC 327A609 C117640V
SC 327A610 C117640V
SC 327A645 C117638
SC 327A646 C117638
SC 327A647 C117640
SC 327A648 C117640
SC 327A649 C117640V
SC 327A650 C117640V
Select 8 for NPT ANSI 1.20.3 or select G for ISO G(228/1)
(2)
Standard prefixes/suffixes are also applicable to kits
Mounting holes in body
spare part kit no.
~ / =
(2)
mounting bracket
ORDERING EXAMPLES VALVES:
SC 8 327A607 24V / DC
WSEMT G 327A608 MS
NFET G 327A607
WSCREM G 327A608 MS
NF 8 327A645
WS G 327A648 MS
EM 8 327A607
WSNF G 327A608 MS
prefix
pipe thread voltage
basic number suffix
24V / DC
230V / 50 Hz
24V / DC
24V / DC
24V / DC
230V / 50 Hz
24V /
DC
STEP 3
Select suffix (combination) if required.
Refer to the suffix table on page 2,
respect the indicated power level.
Example: VMS
STEP 4
Select voltage. Refer to standard
voltages on page 3.
Example: 230V / 50Hz
STEP 5
Final catalogue / ordering number.
Example:
SC G327A607 VMS 230V / 50 Hz
ORDERING EXAMPLES KITS:
C117640
WSEM C117640 MS
NF C117640
WSEM C117640 MS
prefix
basic number
(1)
Basic kit number applies to SC coil construction
All leaflets are available on: www.asco.com
2
(1)
suffix
80021GB-2018/R01
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