SOLENOID VALVE

  1. EXPLOSION-PROOF

SKW-15~50

－With NASS explosion-proof coil, it is suitable for explosive atmosphere.
－NASS system 13 series includes unique components in order to use in an explosive atmosphere and hazardous area.
－The components is certified by PTB (German National Inspection Combined Standard Grade).
－It corresponds with safety measure (EU)94/9/EG under regulation DIN EN 60079, DIN VDE 0179 and IEC60079.
Specification
Voltage
DC24V
AC110V
AC220V
Fluid
water　　　
air　　　　　
vacuum　　　
gas　　　　
Fluid temp
-5℃~+70℃
Operating pressure
0.5 bar　　　
1 bar　　　
3 bar　　　
5 bar　　　
7 bar　　　
Valve size
1/2"　　　
3/4"　　　
1"　　　
1-1/4"　　　
1-1/2"　　　
2"　　　
Valve material
SS304　　
SS316　　　
Connecting interface
PT thread　　　　　　　　
BSP thread　　　　　　　　
NPT thread
Matching coil
NASS explosion-proof coil
Action mode
normally close (NC)
Explosion-proof Solenoid Valve (SKW-15~50)
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DETAIL
  • Solenoid Coil System 13 ATEX with terminal box
    Wideth: 52mm
    Protection by encaps:
    EX Ⅱ 2 G Ex e mb ⅡC T4, T6 Gb
    EX Ⅱ 2 D Ex tb mb ⅢC T130°C, T80°C Db IP65, IP67
    Connection Type: Terminal Box
    Moulding Material: Thermoplastic
     
  • General Data
    Voltage tolerance: +/-10%
    Ambient temperature: -40°C bis + 50°C/ + 60°C
    Relative Duty Cycle: 100%

    Insulation Class of Insulating Materials
    According to DIN VDE 0580: F
    Degree of Protection: IP65 / IP67
    Type Examination Certificate: PTB 11 ATEX 2027 X
    Imprint: nass magent (customer imprint possible)
     
  • Drawing
  • Specification
MODEL PIPE SIZE CV ORIFICE FLUID TEMP.
(ºC)		 Operating Pressure kgf-cm2 (bar) VACUUM
(Torr)		 Dimension (mm)
 Weight
(kg)
WATER AIR STEAM LIGHT OIL GAS L H D
SKW-15 1/2" 4.5 15mm -5ºC~+70ºC 0~5 0~7     0~5 0~10-3 70 133 62 1.04
SKW-20 3/4" 8.6 20mm -5ºC~+70ºC 0~5 0~7     0~5 0~10-3 73 140 62 1.16
SKW-25 1" 12 25mm -5ºC~+70ºC 0~5 0~7     0~5 0~10-3 100 147 62 1.76
SKW-35 1-1/4" 24 35mm -5ºC~+70ºC 0~5 0~7     0~5 0~10-3 130 178 62 3.39
SKW-40 1-1/2" 28 40mm -5ºC~+70ºC 0~5 0~7     0~5 0~10-3 130 183 62 3.49
SKW-50 2" 48 50mm -5ºC~+70ºC 0~5 0~7     0~5 0~10-3 165 191 62 5.08
  • Material
PARTS Coil Tube Spring Core Plug Diaphragm Valve Body
MATERIAL NASS Explosion-proof Coil Stainless Steel Stainless Steel Stainless Steel Viton NBR Stainless Steel
  • Description
    • SKW series is direct, multiplex, connected diaphragm, conductive, and normally close (NC) 2/2 solenoid valve
    • Explosion-proof Protection Level: Ⅱ2 G Ex e mb ⅡC T4 Gb
    • Waterproof Protection: IP67
    • Able to be operated directly under low pressure
    • Availability of fluid: water, air, light oil, gas, vacuum
    • Acceptable for customization VITON, Silicone, EDPM for diaphragm (only available for SKW-20 and SKW-25)
  • Cautions
    • Before installation depressurize the piping system and clean internally.
    • For the protection of the equipment install a strainer or filter suitable for the service involved in the inlet side as close to the solenoid valve as possible.
    • Ambient temperature should be under 70ºC
    • Operating temperature should be under 60ºC
    • AC voltage tolerance: +/- 10%; DC voltage tolerance: +/- 1%
    • All standard solenoid valve MUST be mounted vertically upright.
    • Not suitable for fluid as below:
      • Liquid status when it is at high temperature; solid status when it is cool.
      • Corrosive fluid
      • Seawater
      • Viscosity over 20cst
 

 

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