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EF551H401MO EF551H402MO Explosion-proof solenoid valves G1/4" pilot operated, spool type single/dual solenoid"NAMUR"

Ningbo Nijia Electronics Technology Co.,Ltd

EF551H401MO EF551H402MO Explosion-proof solenoid valves G1/4" pilot operated, spool type single/dual solenoid"NAMUR"

Brand Name : AIRWOLF

Model Number : EF551H401MO EF551H402MO

Certification : CE

Place of Origin : CHINA

MOQ : 1 piece

Price : Negotiation

Payment Terms : T/T in advance,Western Union,Paypal,Credit card

Supply Ability : 2000 pcs/month

Delivery Time : 5 working days

Packaging Details : Plastic bags,Boxes, Cartons, Pallets,or according to customer's requirement

Differential pressure : 2 - 10.4 bar [1 bar = 100 kPa]

Body material : Aluminium, black anodized

Temperature range (TS) : -25°C to + 60°C

Fluids : air, inert gas, filtered

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EF551H401MO EF551H402MO​

G1/4" ASCO Solenoid valve Explosion proof coil single/dual solenoid 3/2~5/2way


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 integrity levels: SIL 2 for HFT = 0 / SIL 3 for HFT = 1
• The solenoid operated spool valves have threaded port connections and "NAMUR" interface
• The same spool valve can be adapted for 3/2 NC or 5/2 functions for controlling double-acting and single-acting actuators
• All the exhaust ports of the 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 valves offer environmental protection against the ingress of liquids, dusts or other foreign matter (environmentally-protected construction)
• Can be externally piloted (external air pilot supply) to convert valve to zero minimum operation by flipping a gasket
• The solenoid valves satisfy all relevant EU Directives

GENERAL
Differential pressure 2 - 10,4 bar [1 bar =100 kPa]
Flow (Qv at 6 bar) 1/4 = 700 l/min (ANR)
1/2 = 3000 l/min

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, end cover Aluminium, black anodized
End cover (spring return) Glass fibre filled PA
Interface plates Glass fibre 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, stainless steel or aluminium
Seat Brass
Seat insert POM
Shading coil Copper
Rider rings (low power) PTFE (NF/WSNF solenoids only)

INSTALLATION
• Multi language installation/maintenance instructions are included with each valve
• The solenoid valves can be mounted in any position without affecting operation
• 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
• 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
• Dowel pin (if necessary), bolts and gaskets are standard supplied
• IEC 61508 Functional Safety (suffix SL). Check temperature range of valve body and solenoid for suitability. For probability of failure, contact us
• 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.)
• Threaded pipe connection identifier is 8 = NPT (ANSI 1.20.3); G = G (ISO 228/1)
• Ex db Prefix "NF/WSNF" enclosure is provided with a 1/2" NPT threaded entry hole, M20 x 1,5 (prefix "ET") is optional. These are supplied without cable gland
• To comply with IEC 61508 (SIL) the valves must be provided with a specific exhaust protector (see following pages)

EF551H401MO

EF551H401MO EF551H402MO Explosion-proof solenoid valves G1/4" pilot operated, spool type single/dual solenoid"NAMUR"EF551H401MO EF551H402MO Explosion-proof solenoid valves G1/4" pilot operated, spool type single/dual solenoid"NAMUR"

EF551H402MO

EF551H401MO EF551H402MO Explosion-proof solenoid valves G1/4" pilot operated, spool type single/dual solenoid"NAMUR"

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.


Serves time
0:00 - 23:59
From Monday to Sunday

FAQ

1. When your company establish?
Ningbo Fly Automation Co.,Ltd Was established in 2010, we have been working in agrochemical field for about 26 years, we have a professional production of process, committed to providing customers with the most satisfactory service.


2. Are you a trader or manufacturer? Do you have factory?
We are a solenoid valve manufacturer, we have the ability of mass production . we have our own developing and designing team, which ensure our own technological and specific products for customers.

3. Where’s your factory located? Can we visit your factory?
Our company is in Xikou town,Fenghua city,Zhejiang Province, China,Which is near by Ningbo city,
Customers will be always welcomed to visit our company and our factories.Please contact us your schedule,we will arrange to pick up you and visit our factory.

4. How do you make the quality guarantee?
We have our own quality control center, we have advanced equipments for the inspections. We can guarantee every product will be tested after production.

5. Can you support the specific productions?
We can design and develop the products of customer's requirement, if you have the specific products, please send us a sample, we will develop it for you.

6. What's the transportation service?
Usually, we will be according your address, choose the fastest and cheapest way, the DHL,TNT,Fedex or China post express all can support.


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