Valve testing system VPS 504 for multiple actuators

Technical description
The VPS 504 is the valve proving system for DUNGS multiple actuators. The valve proving system complies with EN 1643:
- Equipment operates independent of residual pressure in the range of the permissible operating range.
- Test volume ≤ 4 l
- Setting work not necessary on site
- Short test period: ≈ 10 s, max. 36 s
- Tightness or leaks are displayed by an LED
- External fault display possible for series 02, series 04 and S05
- Group fault alarm optional for S01 (SSM)
- Suitable for TRD systems
- Electrical connection possible by plug connection S01, 02, 03. No rewiring is required for contact allocation as per DIN 4791.
- S04 and S05: electrical connection at screw terminals via PG 13.5 cable entry

Application
Valve proving system for DUNGS single valves, DMV double solenoid valve and GasMultiBloc MB.
The VPS 504 can also be used for monitoring the DUNGS solenoid valves up to DN 80, with and without bypass connection. 24 VDC design for gas motors. Suitable for gases of gas families 1, 2, 3 in the gaseous state and other neutral gaseous media.

Approvals
EC type testing certificate as per:
• EC-Gas Appliances Regulation
• EC-Pressure Equipment Directive

Approvals in other important gas consuming countries. Special design for the North American market with U_L , FM and CSA registration.

VPS 504 Valve proving system for automatic shutoff valves as per EN 161, Class A and Class B The VPS 504 may be used with any other valve whose tightness in counter-flow direction excludes by construction a leakage in flow direction. The VPS 504 is suitable for all DUNGS valves according to EN 161 Classes A and B.