General-purpose solenoid valves ASTA ESK 100-101 series pilot control

DN: 1/8“–2 “
PN: 2.4 MPa (ESK 100), 1.8 MPa (ESK 101)
t max°: 160°С
Body material: brass
Connection: thread G (BSPP / ISO 228–1)

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Overview

Low losses, min. differential pressure 0.35/0.5 bar, 360° rotating coil, high reliability, full bore, patented technology, high performance, long service life.

Options

Custom parameters can be made to order
On request: NPT (ANSY 1.20.3), R (BSPT/ISO 7–1), W (BSW), M (metric), etc.
On request: diaphragm, seat seal or rings made of
FPM (VITON) (-10 °C ... + 160 °C ), EPDM (-10 °C ... + 140 °C)
On request: various body coatings, nickel plating, various body materials, stainless steel internal parts (for ESK101), manual control, stainless steel seat, filter, other connections, flange connection
On request: other control voltage, frequency (60Hz), coil insulation class: F (155 °C), coil fixation
On request: with electronic timer, coil explosion protection for use in zones 1/21–2/22 (Eex em II T4/T5), coil insulation material – can be reinforced with glass fibre (V0 or V1)
On request: terminal with or without LED terminal, terminal with visual indication and peak voltage, connector with 2 m long 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) for
ESK 100 Series, stainless steel (AISI 430FR and AISI 304) and brass for ESK 101 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/seat seal: NBR
Bonnet bolts: stainless steel

Fluid: water, light oil products and other non-aggressive liquids and air, neutral and other gases, not installed on aggressive liquids and gases
Safety function: Normally Closed (NC) (ESK 100 Series) and Normally Open (NO) (ESK 101 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" ESK 100 Series), 0.5–12 bar (11
/4"–2" ESK 100 Series), 0.35–12
bar (1/8"–1" ESK 101 Series), 0.5–10 bar (11/4"–2" ESK 101 Series)
Media temperature: -10 °C ... + 80 °C
Ambient temperature: -20 °C ... + 70 °C
Opening time: 200ms – 1500ms
Closing time: 500ms – 2000ms
Maximum viscosity: 38 cSt or mm2/s
Maximum allowable pressure: 24 bar (ESK 100 Series), 18 bar (ESK 101 Series)
Minimum differential pressure: 0.35 bar (for 1/8"–1") and 0.5 bar (for 1 1/4"–2")
Valve seal: O-rings
Voltage: AC, DC
Rearrangement of the coil without dismantling the valve (regardless of AC or DC)
High flow, high reliability and robustness
Various flow ranges, wide range of openings
Installation in any position, but the best option is with the coil facing up
In front of the valve, the medium must be filtered
Flow rate (Q) can be calculated given pressure, density and flow coefficient
According to 97/23/EC
Pressure Equipment Directive (PED), 2006/95/EEC
Low Voltage Directive (LVD) and 2004/108/EC
EMC Directive