Pilot Operated 3 Port Solenoid Valves
ISO 13849-1 Certified/3-Port Solenoid Valve/Residual Pressure Release Valve with Detection of Main Valve Position VP/VG
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・Safety standard ISO 13849-1 certified (Corresponding to category2 to 4)
・With detection of main valve position
・It is possible to construct a redundant system easily
・Highly reliable construction
・Safety limit switch can be selected
・With soft start-up function (-X555)
| Series | Category | Flow rate characteristics 2→3（A→R） C［dm3/（s・bar）］ |
Flow rate characteristics 2→3（A→R） b |
Flow rate characteristics 2→3（A→R） Cv |
|---|---|---|---|---|
| Residual pressure release valve VP542-X536 Body ported |
2 | 8.9 | 0.20 | 2.1 |
| Residual pressure release valve VP544-X536 Base mounted |
2 | 8.8 | 0.13 | 2.0 |
| Residual pressure release valve VP742-X536 Body ported |
2 | 15.3 | 0.22 | 3.7 |
| Residual pressure release valve VP744-X536 Base mounted |
2 | 15.0 | 0.17 | 3.4 |
| Dual residual pressure release valve VP544-X538 |
3,4 | 6.7 | 0.10 | 1.3 |
| Dual residual pressure release valve VP744-X538 |
3,4 | 9.7 | 0.08 | 2.1 |
| Dual residual pressure release valve with soft start-up function VP544-X555 |
3,4 | 6.7 | 0.10 | 1.3 |
| Dual residual pressure release valve with soft start-up function VP744-X555 |
3,4 | 9.7 | 0.08 | 2.1 |
| Dual residual pressure release valve VG342-X87 |
3,4 | 28.6 | 0.03 | 5.6 |
Features
The main valve position detection function is used to detect inconsistencies between input signals and valve operations.
Category 2: The safety function only requires the use of a single channel and is automatically checked.
When the dual residual pressure release valve is used, if one of the valves fails to operate, the other one releases the residual pressure.
Category 3: The redundancy prevents the loss of the safety function when a single failure occurs. The safety function must be checked before each use. An accumulation of undetected faults can cause the loss of the safety function.
Category 4: The redundancy prevents the loss of the safety function when a single failure occurs. The safety function must be checked before each use. An accumulation of undetected faults does not affect the safety function. (Features a higher DC and MTTFd than Category 3)
* This product is to be used as a component of a safety system; the safety of the equipment as a whole cannot be guaranteed by this single unit alone.
