Solenoid fuel valves ASTA series ESK 400-401 pilot control

DN: 1/8"-2"
PN: 0.35–16 bar
Body material: brass
Connection: threaded

Overview

High pressure, no pressure difference required, 360° rotating coil, compact design, light weight, patented technology, quick closing and opening, long service life.

Options

  • Custom parameters can be made to order
  • Optional NPT (ANSi 1.20.3), R (BSPT/ISO 7–1), W (BSP), M (metric)
  • Optional: various body finishes, nickel plating, different body materials, stainless steel internals (ESK401 Series), manual override, stainless steel seat, filter, other connections, flange connection
  • Optional: other supply voltage, frequency 60 Hz, coil insulation class F (155 °C), coil fixation
  • Optional: with electronic timer, coil explosion protection for operation in zones 1/21–2/22 (Eex em II T4/T5), coil insulation material – can be reinforced with fiberglass (V0 or V1)
  • Optional: terminal with or without LED terminal, terminal with visual indication and peak voltage, connector with 2 m cable, flat terminals (cable Ф8–10 mm), non-flammable connectors
  • Other versions on request

Materials

  • Body: brass
  • Plunger seal: VITON
  • Insulating tube: stainless steel (AISI 430FR and AISI 304) (ESK400 Series), stainless steel (AISI 430FR and AISI 304) or brass (ESK401 Series)
  • Plunger: stainless steel (AISI 430FR)
  • Springs: stainless steel (AISI 302)
  • Shielding coil: copper
  • Seat: brass
  • Sealing rings: NBR
  • Internal parts: stainless steel and brass
  • Bonnet: brass
  • Diaphragm/seal: VITON
  • Bonnet bolts: stainless steel

Model overview

Those. information

Medium: light petroleum products, superheated water, hydraulic oils, not installed on aggressive
liquids and gases
Safety function: Normally Closed (NC) (ESK 400 Series) and Normally Open (NO) (ESK 401 Series)
Control type: pilot
Number of strokes: 2/2 (Ports / Positions)
Dimensions: G1 / 8 "- G2"
Connection: Thread G (BSPP / ISO 228-1)
Pressure ranges: 0.35-16 bar (1 / 8 "... 1" Series ESK400), 0.5-12 bar (11 / 4 "... 2" Series ESK400), 0.35-12 bar (1 / 8 "... 1" Series ESK401), 0.5-10 bar (11 / 4 "... 2" Series ESK401)
Media temperature: -10 °C – +160 °C
Ambient temperature: -20 °C – +70 °C
Opening time: 200ms – 1500ms
Closing time: 500ms – 2000ms
Maximum viscosity: 38cSt or mm2/s
Maximum allowable pressure: 24 bar (Series ESK400), 18 bar (Series ESK401)
Required minimum pressure drop: 0.35 bar (for 1/8"…1") and 0.5 bar (for 11Medium: light petroleum products, superheated water, hydraulic oils, not installed on aggressive liquids and gases Safety function: Normally Closed (NC) (Series ESK 400) and Normally Open (NO) (Series ESK 401)
Control type: pilot
Number of strokes: 2/2 (Ports/Positions)
Dimensions: G1/8" – G2"
Connection: Thread G (BSPP / ISO 228–1)
Pressure ranges: 0.35–16 bar (1/8"…1" Series ESK400), 0.5–12 bar (11/4"…2" Series ESK400), 0.35–12 bar (1/8"…1" Series ESK401), 0.5–10 bar (11/4"…2" Series ESK401)
Media temperature: -10 °С – +160 °С
Ambient temperature: -20 °С – +70 °С
Opening time: 200ms – 1500ms
Closing time: 500ms – 2000ms
Maximum viscosity: 38cSt or mm2/s
Maximum allowable pressure: 24 bar (ESK400 Series), 18 bar (ESK401 Series)
Required minimum differential pressure: 0.35 bar (for 1/8"…1") and 0.5 bar (for 11/4"…2"), internal exhaust system (for ESK401 Series)
Valve seal: O-rings
Voltage: AC, DC
Rearrangement of the coil without dismantling the valve (independently AC, DC)
High flow capacity, high reliability and robustness
Various flow ranges, wide range of openings
Installation in any position, but best with the coil facing up
The medium must be filtered before the valve
Flow (Q) can be calculated based on the pressure, density and flow coefficient
In accordance with 97/23/EC Directive on equipment operating Pressure Equipment Directive (PED), 2006/95/EEC Low Voltage Directive (LVD), 2004/108/EC Electromagnetic Compatibility Directive (EMC)/4"…2"), internal exhaust system (for ESK401 Series)
Valve seal: O-rings
Voltage: AC, DC
Coil reversal without dismantling the valve (independent of AC, DC)
High flow capacity, high reliability and robustness
Various flow ranges, wide range of openings
Installation in any position, but optimally with the coil facing upwards
The medium must be filtered before the valve
Flow rate (Q) can be calculated from the pressure, density and flow coefficient
According to 97/23/EC Pressure Equipment Directive (PED), 2006/95/EEC Low Voltage Directive (LVD), 2004/108/EC Electromagnetic Compatibility Directive (EMC)

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