Solenoid valves for steam ASTA series ESK 200-201 pilot control

DN: 1/8''–2''
PN: 0.75 MPa
t max°: 160°С
Body material: brass
Connection: thread G (BSPP / ISO 228–1)

Overview Model overview Those. information Download Colors DOP, CAD

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: various body finishes, nickel plating, various body materials, stainless steel internal parts (for ESK201), manual control, stainless steel seat, filter, other connections, flange connection
On request: other control voltage, frequency (60 Hz), 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 fiberglass (V0 or V1)
On request: terminal with or without LED terminal, terminal with visual indication and peak voltage, connector with 2 m cable, flat terminals (cable ∅8–10 mm), non-flammable connectors
Other versions on request

Materials

Body: brass
Plunger seal: PTFE
Insulating 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/seal: PTFE (1/8"–1"), EPDM (1/4"–2")
Cover bolts: stainless steel

Model overview

Those. information

Medium: steam, superheated water and non-aggressive liquids
Safety function: Normally closed (NC) (ESK 200 Series) and Normally open (NO) (ESK 201 Series)
Control type: pilot
Number of strokes: 2/2 (Ports / Positions)
Dimensions: G1/8" – G2"
Connection: Thread (internal), G (BSPP / ISO 228–1)
Pressure ranges: 0.35–5 bar (1/8"–1"), 0.5–3 bar (11/4"–2")
Media temperature: -10 °C ... + 160 °C (G1/8"–1"), -10 °C ... + 140 °C (G11/4"–2")
Ambient temperature: -20 °C ... + 70 °C
Opening time: 200ms - 1500ms
Closing time: 500ms - 2000ms
Maximum viscosity: 38 cSt or mm2/s
Maximum allowable pressure: 7.5 bar
Minimum differential pressure: 0.35 bar (for 3/8"–1") and 0.5 bar (for 11/4"–2")
Valve seal: O-rings
Voltage: AC, DC
Rearrangement of the coil without dismantling the valve (irrespective of AC or DC)
High flow, high reliability and robustness
Various flow ranges, wide range of openings
Installation in any position, but the best position is with the coil facing up
The medium must be filtered before the valve
Flow rate (Q) can be calculated from pressure, density and flow coefficient
In accordance with 97/23/EC Pressure Equipment Directive (PED), 2006/95/EEC Low Voltage Directive (LVD) and 2004/108/EC Electromagnetic Compatibility Directive (EMC)