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NAMUR Solenoid Valve with Explosion Proof
A. Explosion containment via rugged die-cast aluminum or stainless steel bodies
B. NAMUR-compliant mounting for direct integration with pneumatic actuators
C. Dual-seal protection against gas ingress (IP66/IP67 rated)
D. 3/2 Way or 5/2 Way
Description
Engineered for maximum safety in explosive environments, Heyue ATEX/IECEx-certified NAMUR solenoid valves prevent ignition of flammable gases and vapors through intrinsically safe design. These critical safety components feature reinforced housings and hermetic sealing that contain internal sparks while maintaining reliable operation in demanding conditions.
Critical Applications
Essential for high-risk industries including:
✓ Oil & gas refineries
✓ Chemical processing plants
✓ Mining ventilation systems
✓ Pharmaceutical manufacturing
316 stainless steel material
Low temperature resistance
Low power consumption
Explosion proof and good enclosure protection
Easy wiring (electrical interface 1/2'' NPT or M20 1.5)
The director-acting structure valve body can be selected from S02, S03, S04 coils.
The S03 can only be 24V DC, 3.7W. Manually add MO, MS
Low power coil, 3.7W, 24V. Coil insulation class: H
Enclosure protection:ip67
Direct operated, no minimum operational pressure, high flow and fast response.
Low temperature resistant, O-ring:-60℃~+65℃
Diode is arranged on built-in circuit board to avoid damage of DCS system and other instrumentation from interruption of power supply.
Coil housing:316L SS, Exd II C T6
Valve body:316LSS, NPT connection
Parameters
|
Model |
S-03 Series |
|
Differential pressure |
DC(=):24V, Tolerance, ±10% |
|
Power ratings |
3.7w |
|
Electrical safety |
IEC335 |
|
Orifice size |
5.7mm |
|
Temperature range |
-40~+60℃ |
|
Flow coefficient(kv) |
0.45m3/h, 7.5l/min |
|
Electrical enclosure protection |
Ip67 |
|
Safety code |
Exm II BT4/Exd IICT5 |
|
Electrical connection |
1/2'' NPT threaded cable entry |
|
Duty cycle |
100% |
|
Maximum viscosity |
65cST(mm²/s) |
Materials In Contact With Fluid
|
Body |
AISI 316L SS |
|
Stem |
Stainless steel |
|
Core tube |
Stainless steel |
|
Core and plugnut |
Stainless steel |
|
Springs |
Stainless steel |
|
Sealing & poppet |
F(VMQ) |
|
Rider ring |
PTFE |
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