G551A001MS NAMUR Solenoid Valve G531C001MS G551A002MS C017MS C018MS

Product Specification

G551A001MS NAMUR Solenoid Valve G531C001MS G551A002MS C017MS C018MS SCG

Features

1. The monostable spool valves have TÜV-EXIDA certified IEC 61508 Functional

2. Safety data and can be used up to SIL 4 (551/TÜV)-SIL 3 (552-553/EXIDA)

3. The spool valves have threaded port connections and "NAMUR" style interface

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. 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

6. The valve offers environmental protection against the ingress of liquids, dusts or any other foreign matter (environmentally-protected construction)

7. Epoxy moulded coil for general service applications

8. The solenoid valves satisfy all relevant EC Directives

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

Drawings:

Air Operated Version

1 2 mounting holes dia. 5,3; Spotfacing: dia. 9, depth 5 mm

2 2 mounting holes dia. 6.5; Spotfacing: dia. 11, depth 6 mm

3 1 dia. 5 mm hole for dowel pin (series 551)

- in position A1: 3/2 NC function plate

- in position A2: 5/2 function plate

4 2 O-ring seals (supplied)

5 Exhaust reducers G 1/8 (series 551) or protectors adaptable on orifices 3 and 5

6 Interface plates

7 1 dia. 6,5 mm hole for dowel pin (series 551-552). Same position for interface plate 3/2 NC or 5/2

Connectable pilot exhaust port

ADDITIONAL OPTIONS
1. Other pipe threads are available on request
2. Coil type CM25 with connector size 30 ISO 4400 (Pg 11P) (series 551)
3. Polyamide coil
4. Ex mb/mD (prefix "PV") solenoid can be supplied with various cable lengths
5. Compliance with "UL" standard is available on request (552-553 ranges)
6. Set of stainless steel mounting screws, catalogue number 97802212 (series 551)
7. Set of two exhaust reducers, G1/8, catalogue number 88100344 (series 551)
7. Dustproof ATEX (SCDU) with a coil and spade plug connector with lead (2 m lead), TPL 20651

INSTALLATION
1. Installation/maintenance instructions are included with each valve
2. The valves can be mounted in any position without affecting operation
3. 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
4. IEC 61508 Functional Safety (Suffix SL), allowable temperature range: -25°C to +60°C. Probability

of failure on demand, contact us
5. 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
6. 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.)
7. Dowel pin (if necessary), bolts and gaskets are standard supplied
8. Threaded pipe connection identifier is: 8 = NPT (ANSI 1.20.3); G = G (ISO 228/1)

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PRODUCT SELECTION GUIDE
STEP 1
Select the fluid temperature range and seal material from the general table on page 1. Select basic

catalogue number, including pipe thread identification letter. Refer to the specifications table on

pages 1 and 2.
Example : G551A001
STEP 2
Select prefix (combination). Select the appropriate operator from the specifications table on page 1

and the prefix table on page 2. Select for this operator in the electrical characteristics table on

page 3: the power level (RP, MP, BP), the type of electrical enclosure protection and the desired

temperature class.The air operated version is without prefix.
Warning: The ambient temperature range of your application may not exceed the temperature range of your

operator.
Do not use prefixes for air operated versions.
Example : SC
STEP 3
Select suffix (combination) if required. Suffix GD only applies for the air operated
versions, do not use suffix MS.
Example : MS
STEP 4
Select voltage. Refer to standard voltages on page 3.
Example : 230V / 50Hz
STEP 5
Final catalogue / ordering number.
Example :
SC G551A001MS 230 V / 50 Hz