>> Valve proving systems >> VPS 508
VPS 508 Dungs - valve proving system for multifunctional gas controls
- These valve proving systems VPS 508 may be used with any other valve whose tightness in counter-flow direction excludes by construction a leakage in flow direction.
- Suited for single valves, DMV double solenoid valves and GasMultiBloc MB. The VPS 508 can also be used for monitoring the Dungs solenoid valves up to DN 100, with and without bypass conection.
- Equipment operates independent of residual pressure in the range of the permissible operating range.
- Test volume ≤ 8 l. Short test period: min. 10 s, max 34 s.
- Tightness or leaks are displayed by a LED.
- External faul display possible for series VPS 504 S04 and S05.
- Suitable for TRD systems.
- Electrical connection possible by plug connection for S03. No rewiring is required for contact allocation as per DIN 4791. S04 and S05 have an electrical connection at screw terminals via PG 13.5 cable entry.
- Suitable for gases of gas families 1, 2, 3 and other neutral gaseous media.
Sectional drawing VPS 508
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| VPS 508 | |||||||
|---|---|---|---|---|---|---|---|
| 1 | Hall switch | 8 | Pressure pump | 14 | Pump diaphragm | ||
| 2 | Solenoid | 9 | Unlock switch | 15 | Pump linkage | ||
| 3 | Pressure switch diaphragm | 10 | Fault lamp | 16 | PCB | ||
| 4 | Compression spring | 11 | Operating lamp | 17 | Plug connection | ||
| 5 | Filter | 12 | Test nipple | 18 | Equipment fuse | ||
| 6 | Solenoid valve anchor | 13 | Volume restrictor | 19 | Spare fuse | ||
| 7 | Solenoid valve coil | ||||||
Technical specifications VPS 508
| Type valve proving system | Code | Voltage (V) | Frequency (Hz) | Cable length (m) | Degree of protection |
|---|---|---|---|---|---|
| VPS 508 S03 | 251011 | 230 | 50 | 1.5 | IP 40 |
| VPS 508 S03 | 251012 | 110 | 50 | 1.5 | IP 40 |
| VPS 508 S04 | 251004 | 230 | 50 | - | IP 54 |
| VPS 508 S04 | 251005 | 110 | 50 | - | IP 54 |
| VPS 508 S05 | 251008 | 24 | DC | - | IP 54 |
Dimensions valve proving system (mm)
- VPS 508 S03
- VPS 508 S04/S05
Program sequence
- Idle state: Valves 1 and 2 are closed.
- Pressure build-up: The internal motor pump increases the gas pressure in the test section by approx. 20 mbar compared to the input-side pressure applied to valve V1. During the test period, the installed differential pressure switch monitors the test section for leakage. If the test pressure is attained, the motor pump is switched off (end of test period). The release time (10-26 s) depends on the test volume (max 4 l) and input pressure (max. 500 mbar). If the test section is tight, the contact is released to the automatic burner control after max. 26 seconds - the yellow signal lamp lights up. If the test section is leaky or if the pressure increase by +20 mbar is not attained during the test period (max. 26 s), the VPS 504 switches to fault. The red signal lamp lights as long as the contact release by the regulator of thermostat is present (heat requirement).
- If there is a short power failure during the test or burner operation, the test is started again automatically. If the pumping time < approx. 10 seconds, the pressure difference between the testing system and the inlet pressure is balanced after pumping is finished.
Test volume of Dungs multiple actuators: DMV and MBC.
| Type | Rp/DN | Test volume (l) | Type | Rp/DN | Test volume (l) | |
|---|---|---|---|---|---|---|
| DMV-D(LE) 5080/11 | DN 80 | 1.47 | MBC 1900 | DN 65 | 1.47 | |
| DMV-D(LE) 5100/11 | DN 100 | 2.28 | MBC 3100 | DN 80 | 2.28 | |
| DMV-D(LE) 5125/11 | DN 125 | 3.56 | MBC 5000 | DN 100 | 3.55 | |
| DMV-D(LE) 5065/12 | DN 65 | 1.47 | MBC 7000 | DN 125 | 6.00 | |
| DMV-D(LE) 5080/12 | DN 80 | 2.28 | ||||
| DMV-D(LE) 5100/12 | DN 100 | 3.55 | ||||
| DMV-D(LE) 5125/12 | DN 125 | 6.00 | ||||
Prices
| Code | Type | Prices without VAT |
|---|---|---|
| 251011 | Valve proving system VPS 508 S03 | 0.00 |
| 251012 | Valve proving system VPS 508 S03 | 0.00 |
| 251004 | Valve proving system VPS 508 S04 | 0.00 |
| 251005 | Valve proving system VPS 508 S04 | 0.00 |
| 251008 | Valve proving system VPS 508 S05 | 0.00 |
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