Solenoid valves for compressor units ASTA series ESK 500-502 pilot control

DN: 1/8"-1"
Body material: brass
Connection: threaded

Overview Model overview Those. information Download Colors DOP, CAD

Overview

Low resistance, requires a minimum differential pressure of 0.5 bar, 360° rotating coil, high reliability, full bore, patented technology, quick closing and opening, long service life.

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: diaphragm, seat and sealing ring material can be NBR (-10 °C…80 °C)
On request: different body coatings, nickel plating, different body materials, stainless steel seat, filter, other
connections, flange connection
On request: other supply 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 (Ф8–10 mm cable), non-flammable connectors
Other versions on request

Materials

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

Model overview

Those. information

Medium: air, inert gases, water, not applicable for aggressive liquids and gases
Safety function: Normally Closed (NC) (ESK 500 Series) and
Normal Open (NO) (ESK 502 Series)
Control type: pilot
Number of strokes: 2/2 (Ports/Positions)
Dimensions: G1/8" – G1"
Connection: Thread G (BSPP / ISO 228–1)
Pressure ranges: 0.5–16 bar
Mediation 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 permissible pressure: 24 bar
Required minimum differential pressure: 0.5 bar
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 (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)