EFG551A001MS EFG551A002MS G1/4"ASCO solenoid valve“NAMUR" single
Double solenoid
explosion-proof Solenoid coil
FEATURES
1 The monostable spool valves have TÜV-EXIDA certified IEC 61508
Functional Safety data and can be used up to SIL 4 (551 / TÜV)-SIL
3 (552-553/EXIDA)
2 The spool valves have threaded port connections and "NAMUR" style
interface
3 The same spool valve can be adapted for 3/2 NC or 5/2 function
for controlling double-acting and single-acting actuators
4 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
5 The valve offers environmental protection against the ingress of
liquids, dusts or any other foreign matter
(environmentally-protected construction)
6 Epoxy moulded coil for general service applications
7 The solenoid valves satisfy all relevant EC Directives
GENERAL
Differential pressure
2 - 10 bar [1 bar = 100 kPa]
Flow (Qv at 6 bar)
1/4 = 700 l/min (ANR)
3/8 - 1/2 =
3000 l/min (5/2, 5/3)
| fluids | temperature range (TS) | seal materials |
| air, inert gas, filtered | - 25°C to + 60°C | NBR (nitrile) + PUR (polyurethane) |
MATERIALS IN CONTACT WITH FLUID
() Ensure that the compatibility of the fluids in contact with the
materials is verified
Body
Aluminium, black anodized
End covers + interface plates
Glass-filled PA
Internal parts
Zamak, stainless steel, (POM), aluminium
Seals
NBR + PUR
Core and plugnut
Stainless steel
Shading coil
Copper
INSTALLATION
L Installation/maintenance instructions are included with each
valve
L The valves can be mounted in any position without affecting
operation
L 3/2 NC-5/2 spool valve supplied with two interface plates with
NAMUR mating surfaces. Depending on function (3/2 NC or
5/2), position one of the two plates on the spool valve body before
installing on actuator
L IEC 61508 Functional Safety (Suffix SL), allowable temperature
range: -25°C to +60°C. Probability of failure on demand,
contact us
L Spool valve supplied with two interface plates with NAMUR mating
surfaces. Depending on function (NC 3/2 or 5/2),
position one of the two plates on the spool valve body before
installing on actuator
? L 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.)
? L Dowel pin (if necessary), bolts and gaskets are standard
supplied
L Threaded pipe connection identifier is: 8 = NPT (ANSI 1.20.3); G
= G (ISO 228/1)
Our Service
One year quality guarantee Policy
We will check the goods quality before shipment. If there are some
unexpected problems
happen, we hope to solve the problems with buyer through friendly
in the following ways:
1, If it is quality problem, buyer can submit argue within 15days
after receiving the goods,
buyer must provide photos or video and other evidence to seller for
identify.
2, Man-made damaged, buyers take full responsibility.
3, Product quality processing program:
1) The buyer return the products for bad quality reasons for one
year (not included those
damages coursed by shipping or Man-made damaged ). A 15% restocking
fee is
assessed for any products returned in "used" condition. And then we
will send a new
product to buyer and pay for the resend shipping cost.
2) If the goods (total price including shipping is less than 10USD)
has quality problems, we
will resend a new product in buyer next order; if buyer don’t plan
to make a new order in
the near term, buyer can pay the resend shipping cost and ask to
resend a new product. If
there is an issue with the products, please contact us– we will
solve it as soon as we get
your email.
