MD15C~50C Normally Open SUS Diaphragm Solenoid Valve
QUEEN SOLENOID VALVES
Discription
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Suitable for air, inert gases, vacuum (10^-4 Torr), water, kerosene oil, and oil (Below 50 cst).
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Pilot operated, pressure range from 0.3kg*f/cm² to 10kg*f/cm².
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Can be mounted in vertical and horizontal position.
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The "M17" marking indicates a waterproof coil with an IP65 rating.
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The diaphragm can be selected from NBR, EPDM, or Viton.
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Material designation :
- SCS13 : Stainless Steel 304
- SCS14 : Stainless Steel 316
Specifications
Model
(1) MD-15C-SCS13,14 (M17)
(2) MD-20C-SCS13,14 (M17)
(3) MD-25C-SCS13,14 (M17)
(4) MD-32C-SCS13,14 (M17)
(5) MD-40C-SCS13,14 (M17)
(6) MD-50C-SCS13,14 (M17)
Action mode
Normally open
Voltage
AC 24, 110, 220, 380V 50/60 Hz
DC 12, 24V
Media
Air, vaccum, gas, water, oil
Fluid temp.
-5~90°C
Fluid viscosity
Oil : 50 cst or less
Pressure range
Air, water, gas : 0.3~10 kgf/cm2
Oil : 0.3~7 kgf/cm2
Connection size
(1) PT 1/2"
(2) PT 3/4"
(3) PT 1"
(4) PT 1-1/4"
(5) PT 1-1/2"
(6) PT 2"
Orifice
(1) 16 mm
(2) 23 mm
(3) 28 mm
(4) 32 mm
(5) 40 mm
(6) 50 mm
Cv valve
(1) 3.7
(2) 6.3
(3) 8.0
(4) 13.0
(5) 20.3
(6) 32
Direction
Vertical / Horizontal
Valve material
S.S 304
S.S 316
Seal material
NBR
EPDM
VITON
Coil type
Iron case coil: IP54
Waterproof coil: IP65
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