Vacuum solenoid valves ASTA ESK 300 series pilot controlled

DN: 1/8“–1“
PN: -0.1 MPa – 0.3 MPa
t max°: 80°С
Body material: brass
Connection: thread G (BSPP / ISO 228–1)

Overview Model overview Those. information Download Colors DOP, CAD

Overview

Used for vacuum, 360° rotating coil, high reliability, full bore, patented technology, 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: diaphragm, seat seal and rings made of FPM(Viton)(-10 °C – 160 °C)
Optional: various body materials, manual override, stainless steel seat, filter, other connections
Optional: other control voltage, frequency 60 Hz, coil insulation class F (155 °C), coil locking
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: NBR
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 and brass
Cover: brass
Diaphragm/seal: NBR
Cover bolts: stainless steel

Model overview

Those. information

Medium: air and inert gases
Safety function: Normally Closed (NC)
Control type: pilot
Number of strokes: 2/2 (Ports/Positions)
Dimensions: G1/8" – G1"
Connection: Thread G (BSPP / ISO 228–1)
Pressure ranges: -1…3 bar
Mediation temperature: -10 °C – +80 °C
Ambient temperature: -20 °C – +70 °C
Opening time: 200ms – 1500ms
Closing time: 500ms – 2000ms
Maximum viscosity: 38cSt or mm2/s
Maximum allowable pressure: 10 bar
Valve seal: O-rings
Voltage: AC, DC
Rearrangement of the coil without dismantling the valve (regardless of AC, DC)
High flow capacity, high reliability and robustness
Various flow ranges, wide orifice range
Installation in any position, but ideally with the coil facing upwards
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), 2004/108/EC Electromagnetic Compatibility Directive (EMC)