EFG551H402MO 3/2 NC - 5/2 Solenoid air pilot operated and return
bistable Solenoid valve
FEATURES
1. The monostable spool valves in conformity with IEC 61508
Standard (2010 route 2H version) have TüV (551 series) and EXIDA
(551-553 series) certified with integrity levels: SIL
2 for HFT = 0 / SIL 3 for HFT = 1
2. The spool valves have threaded port connections and "NAMUR"
style interface
3. 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
4. The same spool valve can be adapted for 3/2 NC or 5/2 function
for controlling double-acting and single-acting actuators
5. The valve offers environmental protection against the ingress of
liquids, dusts or any other foreign matter
(environmentally-protected construction)
6. Can be externally piloted (external air pilot supply) to convert
valve to zero minimum operation by flipping a gasket
7. The solenoid valves satisfy all relevant EU Directives
MATERIALS IN CONTACT WITH FLUID
Body Aluminium: black anodized
End cover (spring): Glass-filled PA
Interface plates: Glass-filled PA
Spool valve internal parts: Zamak, stainless steel, (POM),
aluminium
Pilot internal parts: Refer to specific solenoid catalogue pages
Pilot end covers: Aluminium
Core tube: Stainless steel
Core and plugnut: Stainless steel
Core spring: Stainless steel
Seals: NBR
Top disc: PA
Disc holder: POM
Cartridge (low power): Welded, packless AISI 430
Seat: Brass
Seat insert: POM
Shading coil: Copper
Rider rings (low power): PTFE (NF/WSNF solenoids only)
Electrical characteristics
| Coil insulation class | F |
| Connector specification | DIN 43650, 11 mm, industry, standard B (type 01)
or ISO 4400 (type 02) |
| Connector | Spade plug (cable Ø 6-8 mm or Ø 6-10 mm) |
| Electrical safety | IEC 335 |
| Standard voltages | DC (=) : 24V
AC (~) : 24V - 115V - 230V / 50 Hz |
Pictures and details
ADDITIONAL OPTIONS
1. Valves configured for external pilot air supply, TPL 20547
2. Ex mb (prefix "PV") solenoid can be supplied with various cable
lengths
3. Other pipe threads are available on request
4. Compliance with "UL", "CSA" and other local approvals available
on request
5. 1/2" NPT (prefix "T") and M20 x 1.5 (prefix "ET") conduits
(aluminium or 316 SS) available for steel solenoid housing
6. Set of two exhaust reducers, G1/8, catalogue number: 88100344
(series 551)
7. Set of stainless steel mounting screws, catalogue number:
97802212 (series 551)
INSTALLATION
1. Multi language installation/maintenance instructions are
included with each valve
2. The solenoid valves can be mounted in any position without
affecting operation
3. 3/2 NC-5/2 spool valve supplied with one or two interface plates
with NAMUR mating surfaces. Depending on function (3/2 NC or 5/2),
position the plate (series 551) or one of the
two plates (series 553) on the spool valve body before installing
on actuator
4. Do not connect the pressure supply to the exhaust port 3. The
“environmentally-protected” construction is not adapted for NO
function. Contact us for function available in specific
version
5. Dowel pin (if necessary), bolts and gaskets are standard
supplied
6. IEC 61508 Functional Safety (suffix SL). Check temperature range
of valve body and solenoid for suitability. For probability of
failure, contact us
7. It is necessary to connect pipes or fittings to the exhaust
ports to protect the internal parts of the spool valve and its
pneumatic operator if used outside or in harsh environments
(dusts, liquids etc.)
8. Threaded pipe connection identifier is: 8 = NPT (ANSI 1.20.3); G
= G (ISO 228/1)
9. Prefix "NF/WSNF" enclosure is provided with a 1/2" NPT threaded
entry hole, M20 x 1,5 (prefix "ET") is optional. Both are supplied
without cable gland
10. To comply with IEC 61508 (SIL) the valves must be provided with
a specific exhaust protector (see following pages)
Products shopping guide
For example: you want to purchase a batch of cylinders but you
don't know which type you are really want, so you can tell me all
your requirement and I'll recommend to you.
Competitive Advantage
| Our product features | Our Services Guarantee: |
| 1) Competitive price | 1) Prompt respond (Reply with 24 hours) |
| 2) Good quality | 2) Free Samples (Customer pay for the delivery cost) |
| 3) Professional Packaging | 3) Registration support. |
| 4) Produce according to Customers’ instruction | 4) Photos/videos are available during production. |
| 5) None delay shipment | 5) Loading inspection, and send loading photos before shipment. |
After-sale Service
We can provide a series of after-sale service, such as product
introduction, mounting, debugging, technical support and so on.
Warranty
All item Comes with Basic 3 Month Sellers Warranty, if item
defective in 3 Month, We will offer replacement without extra
Charger(including shipping fee)After we Receive the Defective item.
If item Defective after 3 Month, Buyers can still send it back, We
will contact suppliers or Manufactory for Warranty. Buyers Might
Need to pay the Shipping fee For resend the replaced item.
