DUNGS Gas Leak Detector VPS504S04 VPS504S05 VPS504S02 Gas Valve Leakage Testing Device Original New
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- Description
- Specification
- Q&A
- Customer Reviews
Original and new | Original and new |
Place of Origin | Germany |
Brand Name | DUNGS |
Model Number | VPS504S04 |
Product name | Pressure switch |
Warranty | 1 Year |
Point of origin | Shanghai,China |
Packaging Details | 1pcs/box |
Use place | burner |
Inventory quantity | >20PCS |
We usually quote within 24 hours after we get your inquiry.If you are very urgent to get the price, please call us or tell us in
your email so that we will regard your inquiry priority.
2.How can I get a sample to check your quality?
After price confirmation, you can require for samples to check our quality. If you just need a blank sample to check the design and paper quality, we will provide you sample for free, as long as you afford the express freight.
3.How long can I expect to get the sample?
After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 3-7 days. The samples will be sent to you via express and arrive in 3-5 workdays.
You can use your own express account or prepay us if you do not have an account.
4. How long does the whole procedure being worked out?
After you place a order,the production handling time is about 45-60 days.
We need 15 days to prepare all the stuff then 30 days for manufacturing.
5.What about the transportation and delivery date?
Normally we use shipment to transprot the goods.It is about 25-40 days.It also denpends on which coutry and port you are.It could be shorter if you need to send the goods like Asian.
If there are some emergencies we can send the goods via air express, as long as you afford the traffic expense.
6.What is your term of delivery?
We accept EXW, FOB Shenzhen or FOB Guangzhou. You can choose the one which is the most convenient or cost effective for you.
7.What about the lead time for the mass production?
Honestly, it depends on the order quantity and the season you place the order.
8.Can we print our logo/website/company name on products?
Yes, please advise the size and Pantone Code of the logo.
9.What's the lead time for regular order?
14-21 days for order quantity lower than 5000pc; For more quantity, usually 30 days.
10.Do you inspect the finished products?
Yes, each step of production and finished products will be came out inspection by QC department before shipping.
VPS504S04 / VPS504S05 (DUNGS Gas Valve Leakage Testing Device)
Brand: DUNGS (Germany)
Type: Combustion System Dual Solenoid Valve Leakage Testing / Monitoring Device (Compliant with EN1643)
I. Application
Specifically designed to detect leakage in dual gas solenoid valves (e.g., the DMV series) after valve closure.
Used in boilers, burners, and gas heating equipment to prevent gas leakage and potential explosions.
Applicable Gases: Natural gas, town gas, LPG (Gas families 1, 2, and 3).
II. Common Core Parameters (S04 / S05)
Operating Pressure: ≤ 500 mbar
Test Volume: ≤ 4 L
Test Duration: 10–26 s (Automatic)
Pressure Boost: +20 mbar (via built-in electric pump)
Output Contacts: Operating Output 4 A; Fault Output 1 A
Indicator Light: OK (Sealed) / Fault (Leaking) — Dual-color LED
Installation: Vertical or horizontal; must not be mounted upside down.
Certifications: EN1643, TRD Compliant
III. Model Differences (S04 vs S05)
VPS504S04
Power Supply: AC 230–240 V / 50–60 Hz
Wiring: PG13.5 Cable Gland + Screw Terminals
Function: External Fault Indication (Supports connection to remote alarms)
VPS504S05
Power Supply: AC 230–240 V or DC 24 V (Dual power supply for greater flexibility)
Wiring: Same as S04 (PG13.5)
Function: Same as S04 (External Fault Indication)
IV. Operating Principle (Brief Overview)
After the burner shuts down, the VPS504 automatically initiates the leak test.
The built-in pump pressurizes the chamber between the two valves by +20 mbar.
The pressure is held for 10–26 seconds while monitoring for any pressure drop.
No Pressure Drop = Good Seal (Green Light); Excessive Pressure Drop = Leak Detected (Red Light + Fault Contact
VPS504S02
Voltage: AC 230V ±10% / 50–60Hz
Power Consumption: Approx. 15VA
Connection Method: Built-in standard socket (DIN4791); allows for direct plug-in connection without the need for rewiring.
Difference from S04/S05: The S04/S05 models utilize a PG13.5 cable gland and screw terminals, whereas the S02 features a socket-style connection, enabling faster installation.
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