2/2 - Way Solenoid Valve
Type 21
Description
Valve type 21 is a 2/2-way direct acting solenoid valve for
general applications with gases and liquids for medium to high
pressure.
Construction
| Body material | brass |
| Internal parts | brass and stainless steel |
| Sealing material | NBR, EPDM, FPM, PTFE |
| Voltages | 24 V DC, 24 V 50Hz, 230 V 50Hz |
| Connections | G1/8 - G1/4 |
On Request
Valve for oxygene applications
Non-standard coil voltages
Higher ambient temperature range
Non-standard equipment
Manual override
Switching Pressure
| Orifice in mm | Normally closed in bar | Normally open in bar |
|---|---|---|
| 1,5 | 100,0 | - |
| 2,0 | 90,0 | - |
| 2,5 | 80,0 | - |
| 3,0 | 60,0 | - |
| 3,5 | 36,0 | - |
| 4,0 | 25,0 | - |
DETAILED INFORMATION
General
| type of construction | 2/2-way poppet valve, normally closed NC or normally open NO, coil 360° rotatable |
| operation | electrically, on request: manual override |
| ports | G1/8 - G1/4 |
| ambient temperature | -20°C to +50°C, higher acceptable ambient temperature range on request |
| fluid temperature | dependent on sealing material and coil |
| viscosity | max. 21 mm²/s (cst) |
| material | body: brass plunger tube: AISI 303 internal parts: brass and stainless steel sealing: see type selection |
| mounting | installation into fixed piping systems or by use of 2 threads on the bottom side |
| installation | in any position, preferable vertically fixed solenoid coil |
| unit of supply | without connector |
Electrical
| voltage | DC voltage or AC voltage |
| standard voltages | 24 V DC, 24 V 50Hz, 230 V 50Hz |
| non-standard voltage on request | 6 V - 200 V DC, 12 V - 240 V 50Hz or 60Hz |
| acceptable voltage tolerance | ±10% |
| power consumption | see specifications at solenoid coils |
| coil temperature classification | temperature class F (155°C), winding & coil E3 temperature class H (180°C) |
| duty cylce | 100%, continuous operation |
| protection class | IP65 according DIN EN 60529 (DIN 40050) with correctly mounted connector |
Pneumatic – Hydraulic
| fluid | all liquids and gases, non-aggressive to the used material |
| max. valve body pressure | PN 100 |
| response time | depending on operating pressure and fluid |
| non-standard equipment on request | stainless steel AISI 303 in place of brass, coil type with cable, bright nickelplated or chemical nickel-plated, coils for temperature class H (180°C), higher differential pressure |