Solenoid piston valves ASTA series ESK 103-104 for high pressure, steam, compressor equipment pilot control

DN: 1/8" – 1"
PN: 6 MPa
t max°: 180°С
Body material: brass
Connection: thread G (BSPP / ISO 228–1)

Overview Model overview Those. information Download Colors DOP, CAD

Overview

High pressure, high steam temperature, minimum pressure drop 1 bar, 360° rotating coil, high reliability, full bore, patented technology, high flow rate, low loss.

Options

Custom parameters can be made to order
On request NPT (ANSi 1.20.3), R (BSPT/ISO 7–1), W (BSP), M (metric)
On request: various body finishes, nickel plating, various body materials, stainless steel internals (for ESK104), manual override, stainless steel seat, flanged connection
On request: other voltage, frequency 60 Hz, coil insulation class F (155 °C), coil fixation
On request: 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)
On request: terminal with LED, or without terminal, terminal with visual indication and peak voltage, connector with 2 m cable, flat terminals (cable ∅8–10 mm), non-flammable connectors
Other designs on request

Model overview

Those. information

Materials

Body: brass
Plunger seal: NBR
Isolating tube: stainless steel (AISI 430FR and AISI 304) (ESK103 Series), stainless steel (AISI 430FR and AISI 304) or brass (ESK104 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: PTFE
Bonnet bolts: stainless steel

Media: water, steam (up to 180 °C), light petroleum products, other non-aggressive liquids and air, neutral gases, not applicable for aggressive liquids and gases
Safety function: Normally Closed (NC) (ESK 103 Series) and Normally Open (NO) (ESK 104 Series)
Control type: piston
Number of strokes: 2/2 (Ports/Positions)
Dimensions: G1/8" – G1"
Connection: Thread G (BSPP / ISO 228–1)
Pressure ranges: 1–40 bar
Mediate temperature: -10 °С … +180 °С
Ambient temperature: -20 °С – +70 °С
Opening time: 200ms – 1500ms
Closing time: 500ms – 2000ms
Maximum viscosity: 38cSt or mm2/s
Maximum allowable pressure: 60 bar
Required minimum differential pressure: 1 bar
Valve seal: O-rings
Voltage: AC, DC
Coil changeover without dismantling the valve (independent of AC, DC)
High flow capacity, high reliability and robustness
Various flow ranges, wide range of flow areas
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
In accordance with 97/23/EC Pressure Equipment Directive (PED), 2006/95/EEC Low Voltage Directive (LVD), 2004/108/EC Electromagnetic Compatibility Directive (EMC)