MD Normally Closed Explosion-Proof Solenoid Valve
QUEEN SOLENOID VALVES
Discription
MD-P10~25-Ex explosion-proof solenoid valve is equipped with imported Italian explosion-proof coils, certified by ATEX and IECEx. This normally closed, pilot-operated diaphragm solenoid valve features connection sizes ranging from PT3/8" to 1" and requires a minimum operating pressure of 0.5 kgf/cm² to open.
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Explosion proof : Ex mb llC T4 Gb、Ex mb lllC T135°C Db.
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Pilot operated, high flow rate and low electric power consumption only 5.2W.
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Suitable for Air, Inert gases, Water, Kerosene oil, Light oil (Below 50 cst).
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Operating pressure range from 0.1 ~ 16 kgf/cm², quick acting, durable usage.
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Piping is simple and convenient, applicable to the upright pipe or a horizontal pipe connected unrestricted.
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The diaphragm can be selected from NBR, EPDM, or Viton.
Specifications
Model
(1) MD-P10WAG-Ex
(2) MD-P15WAG-Ex
(3) MD-P20WAG-Ex
(4) MD-P25WAG-Ex
Action mode
Normally closed
Voltage
AC 24, 110, 220, 380V 50/60Hz
DC 12, 24V
Media
Air, gas, water, oil
Fluid temp.
-5~90°C
Fluid viscosity
Oil : 50 cst or less
Pressure range
Air, gas : 0.3~16 kgf/cm2
Water : 0.5~16 kgf/cm2
Light oil : 0.5~12 kgf/cm2
Connection size
(1) PT 3/8"
(2) PT 1/2"
(3) PT 3/4"
(4) PT 1"
Orifice
(1) 16 mm
(2) 16 mm
(3) 23 mm
(4) 28 mm
Cv valve
(1) 4.5
(2) 4.5
(3) 7.6
(4) 9.6
Direction
Vertical / Horizontal
Valve material
BSBF
Seal material
NBR
EPDM
VITON
Coil type
Explosion proof coil
Seal Material Characteristics
• NBR
∙ Temperature : -5~80°C
∙ Pros : Economical, widely used, with good oil and wear resistance.
∙ Cons : Unsuitable for polar solvents like nitro compounds, ozone, and ketones.
• EPDM
∙ Temperature : -10~130°C
∙ Pros : Resistance to polar solvents (alcohols, ketones, ethylene glycol) and mild acids/bases.
∙ Cons : Not suitable for gasoline, mineral oil, and aromatic hydrocarbons.
• VITON (FPM/FKM)
∙ Temperature : -10~120°C
∙ Pros : Stable, aging-resistant, and resistant to most oils and solvents.
∙ Cons : Costly, not recommended for ketones, esters, or nitro compounds.
Cautions
1. Before installation, please check whether the solenoid valve voltage is consistent with the power supply voltage.
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AC voltage tolerance: ±10%
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DC voltage tolerance: ±1%
2. If there are unclean impurities in the fluid, a filter should be installed to avoid reducing the service life and hindering the operation of the solenoid valve.
3. Please install the solenoid valve in the direction of the fluid.
4. Pilot-operated solenoid valves require a minimum pressure to open.
5. Not suitable for freezing fluids.
Certificate
- CE