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Solenoid valves 203 ASCO

2-way, 3/8 "-1/2", proportional, Normally closed, for pressure difference 0.3-10 bar

Features:

  • Solenoid valves comply with all relevant EC directives
  • The valves are specially designed to keep pressure fluctuations to a minimum, prevent water shocks and ensure silent closing.

Fluids (*)

Water, oil

Max. viscosity

40 cSt (mm2/s)

Temperature range (TS) 1)

-10… 90 °C

Gaskets (*)

NBR (nitrile / buna-n)

MATERIALS IN CONTACT WITH THE FLUID
(*) Make sure that the materials are suitable for the fluid

  • Housing Brass
  • Anchor Tube Stainless Steel
  • Anchor Stainless Steel
  • Springs Stainless Steel
  • Guide Ring PTFE (Teflon)
  • Seals NBR
  • Valve Plate NBR

ELECTRICAL PROPERTIES: 

  • Coil insulation
  • class F
  • Connector Plug PG11
  • Electrical safety VDE 0580
  • Protection class IP65
  • Constant voltages DC (=): 24 V
  • Operating current 100 - 500 mA

Options available:

  • Valves available with NBR (Nitrile-buna-n), EPDM (ethylene-propylene), CR (chloroprene / neoprene) and PTFE (Teflon) and with seals and diaphragms.
  • explosion-Proof
  • Relative electronic control unit (E908A001)
  • Control unit features:
  • control signals: analog 0 - 10 VDC, 0 - 20 mA or 4 - 20 mA
  • adjustable coil current (= flow rate) with required control signals
  • adjustable ramp
  • adjustable frequency
  • the output current is independent of the coil resistance and the supply voltage variation
  • With IP65 protection class
  • Control voltage 0 - 24 VDC
  • 24 VDC pulse width modulated (300 Hz)

Flow control characteristics ( ³ ) Hysteresis <7.5%, frequency <3%, sensitivity <2%

Sales information

Wermundsen OÜ
Mustamäe tee 55
EE-10620 Tallinn, Estonia
Tel: (+372) 601 4202
wermundsen@wermundsen.ee

Product images

Manufacturer's homepage


Additional information

PDF icon 203_proportional.pdf

Size

Orifice

Flow factor

Kv

Operating pressure difference (bar)

Model

min.

Max. (PS)

Water (*)

Oil (*)

R”

(mm)

(m3/h)

(l/min.)

=

=

3/8

1/2

12,5

12,5

2,1

2,1

35

35

0,3

0,3

10

10

10

10

SC G203B001

SC G203B002

(1) Distortions may occur as liquids solidify.
(2) For other voltages please inquire
(3) Percentage of maximum value 24 V DC, PWM, 300 Hz supply voltage, constant ΔP.

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