ASCO
ASCO - Electrical controlled 1/4" valve, 860 l/min G551A005MS
There are many different versions of series 551. It can be provided with most voltage variants, with ATEX approved coil for explosive environments and with a low power pilot valve. In addition to aluminium, housing is available in SS316 steel or brass for low temperatures, -40 °C. All electrically and air operated valves with Aluminium housing have environmental protection as standard. This means that all the internal parts are totally sealed against fluids, dust, corrosive substances etc. that may be present in the direct surroundings. Even the exhaust from the return chamber is led to the exhaust ports via an internal channel. For further protection, the pilot exhaust can also be led away to prevent contamination. The environmental protection makes the 551 series an excellent choice for both dirty environments and clean rooms. The electrical enclosure protection for all models is IP65.
- Function 3/2-5/2-5/3
- For temperatures down to -25 °C
- Wide selection of voltages
- Coil service life 30,000 operating hours
Selected variant
Technical data
| Differential pressure min | 2 bar |
|---|---|
| Differential pressure max | 10 bar |
| Function 1 | 3/2 |
| Function 2 | Normally Closed |
| Connection | G1/4 |
| Flow max | 860 l/min |
| Throughput | 6 mm |
| Power consumption | 0 W |
| Material coil | Epoxy |
| Response time off | 14 ms |
| Close delay | 11 ms |
| Mounting | None |
| Weight | 0.43 kg |
| Material plunger | Stainless steel |
| Flow factor / flow coefficient | 12,5 |
| Manual operation | Yes |
|---|---|
| Material of body | Anodised aluminum |
| Material of seals | NBR, PUR |
| Pressure max | 10 bar |
| Temperature operational max | 60 °C |
| Temperature operational min | -25 °C |
| Short circuit protection | Yes |
| Connection port 1-2 | G1/4 |
| Connection port 3 | G1/4 |
| Approvals | IEC, TÜV |
| IP class | IP65 |
| Material short-circuit ring | Copper |
| Material internal parts | Aluminium, POM, Stainless steel |
| Type of valve | Electrically controlled |
Product description
There are many different versions of series 551. It can be provided with most voltage variants, with ATEX approved coil for explosive environments and with a low power pilot valve. In addition to aluminium, housing is available in SS316 steel or brass for low temperatures, -40 °C. All electrically and air operated valves with Aluminium housing have environmental protection as standard. This means that all the internal parts are totally sealed against fluids, dust, corrosive substances etc. that may be present in the direct surroundings. Even the exhaust from the return chamber is led to the exhaust ports via an internal channel. For further protection, the pilot exhaust can also be led away to prevent contamination. The environmental protection makes the 551 series an excellent choice for both dirty environments and clean rooms. The electrical enclosure protection for all models is IP65.
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