2
VALVES
VAL-432
For further information www.norgren.com
For single and double operated actuators
Closed - crossover design
Rectified solenoid coils
Add-on manual override
Suited for outdoor use under critical
environment conditions (see solenoid list)
Ex e mb, Ex d mb, Ex mb, Ex ia for zones 1 &
2 (gas), 21 & 22 (dust), ATEX cat. II 2GD
International approvals: IEC Ex, FM, CSA
others on request
Medium:
Filtered, non-lubricated and dried
compressed air, instrument air,
nitrogen and other non-flammable
neutral, dry fluids
Operating pressure:
2,5 ... 8 (36 ... 116 psi)
with internal air supply
0 ... 8 bar (0 ... 116 psi)
with external air supply
(G1/2, 1/2 NPT or low power pilot
system only)
Fluid/Ambient temperature:
Valve:
-40 ... +65°C (SNBR)
(-40...+149°F)
-25 ... +80°C (HNBR)
(-13...+176°F)
Depending on solenoid system.
Air supply must be dry enough to avoid
ice formation at temperatures below +2°C
(+35°F).
For outdoor installations all
connections must be protected
against the penetration of
moisture and a solenoid with IP66
protection must be used!
Materials:
Body: Aluminum 3.0615 with
surface treatment for rough
environmantal conditions.
Approved according to DIN
50018: Condensate test with
alternating temperatures in
sulphuric atmosphere, DIN 50021/
ASTM B117-73: Salt spray test
with different sodium chloride
solutions, tested in ammonia
atmosphere). Stainless steel
1.4404 (316 L)
Seals: SNBR (special NBR) or
HNBR
Technical data
The solenoid valves are used
in ATEX zones, resulting from
Protection Class Atex-category of
solenoids (see table of solenoids).
Approval
depends on
magnetic
system
DIN EN 61508
IEC 61508
97105 NAMUR
5/2- & 5/3 Spool valves electromagnetic actuated, indirectly controlled
G 1/4, 1/4 NPT, G 1/2, 1/2 NPT, flanged with NAMUR interface
