Solenoid valves for steam with cooling fins ASTA series ESK 275-276 direct action

DN: 3/8"–1"
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

With cooling fins, does not require differential pressure, 360° rotating coil, various port options, light weight, patented technology, quick closing and opening, long service life

Options

User parameters can be made to order
On request: NPT (ANSi 1.20.3), R (BSPT/ISO 7–1), W (BSP), M (metric)
On request: EPDM diaphragm, seat and stem seal (-10 °C…140 °C)
On request: various body coatings, nickel plating, various body materials, stainless steel internals (for ESK276), stainless steel seat, other connections, with two or four mounting holes in the bottom of the valve
On request: other voltage, frequency 60 Hz, coil insulation class F (155 °C), coil fixation
On request: with electronic timer, explosion protection coils for operation 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 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 versions on request

Materials

Body: brass
Plunger seal: VITON
Insulating tube: stainless steel (AISI 430FR and AISI 304) for ESC 275, stainless steel (AISI 430FR and AISI 304) or brass for ESC 276
Plunger: stainless steel (AISI 430FR)
Springs: stainless steel (AISI 302)
Shielding coil: copper
Seat: brass
Sealing rings: NBR
Internal parts: stainless steel or brass

Model overview

Those. information

Medium: steam, superheated water and non-aggressive liquids
Safety function: Normally Closed (NC) (ESK 275 Series) and Normally Open (NO) (ESK 276 Series)
Control type: direct acting
Number of strokes: 2/2 (Ports/Positions)
Dimensions: G3/8" – G1/2"
Connection: Thread G (BSPP / ISO 228–1)
Pressure ranges: 5 bar
Mediate temperature: -10 °C … +160 °C
Ambient temperature: -20 °C – +70 °C
Opening time: 25ms
Closing time: 25ms
Maximum viscosity: 38cSt or mm2/s
Maximum allowable pressure: 7.5 bar
Does not require a minimum pressure drop, internal exhaust system (for ESK 276)
Valve seal: O-rings
Voltage: AC, DC
Coil reversal without dismantling the valve (independent of AC, DC)
Low pressure loss, low power consumption
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 based on 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)