The Bitumen Roofing Waterproofing Testing Machine used to detect petroleum asphalt felt, polymer elastomer waterproofing membrane and a variety of new waterproofing membrane. The waterproof membrane impermeable electric instrument uses an electric pump pressure, electrical contacts can automatically maintain pressure, digital timer. The new standard applies to web GB/328.10-SY-B type high pressure situations, such as special roofs, tunnels and pools, etc.
✓ 1. Maximum test pressure: 0.40MPa, (high pressure 0.60Mpa)
✓ 2. Number of specimens: 3 (a)
✓ 3. Permeable plate outer diameter: Φ135mm
✓ 4. Permeable plate inside diameter: Φ112
✓ 5. Power supply: 220V
✓ 6. Weight: 28kg
Test Method Instructions
1
Before use, adjust the pressure gauge according to the test requirements of the specimen. Adjustment method: The pressure gauge has an adjustment knob in the center of the glass. Its upper and lower limits are set using a flat-blade screwdriver. Turn the upper limit pointer to the specified test pressure and the lower limit pointer to 0.1 MPa less than the upper limit. During operation, when the required pressure (upper limit) is reached, the pressure automatically stops. If leakage or water seepage causes the pressure to drop to a certain value (lower limit), the air pump automatically restarts to replenish pressure. For example, if the test pressure is 0.3 MPa, adjust the upper limit pointer to 0.3 on the dial on the center outer ring of the gauge case, then use a screwdriver to turn the lower limit pointer to 0.2.
2
To use, loosen and remove the pressure rings from the three permeable trays, unscrew the water inlet cap, close the drain valve, and slowly pour clean water into the inlet until the container is 2/3 full. Open valves "1," "2," and "3" (0 is the drain valve) respectively. Water will flow out of the center water inlet hole until the permeable trays are completely filled. Then, tighten the water inlet cap.
3
Place the test piece on the permeable tray's rubber rings, place the test piece pressure plate on the test piece, and tighten the screws.
4
Set the timer dial according to the test requirements.
5
Plug in the power cord and turn on the power switch. The air pump will begin to inject pressurized gas into the container, and the pressurization indicator will illuminate.
6
Pressurization will automatically stop when the pressure reaches the specified level, and the constant pressure indicator will illuminate. After the test is completed within the specified time, unscrew the water inlet cap to release the pressure, loosen the pressure ring, and remove the test piece. The test is complete.
Frequently Asked Questions
Q1: What is the maximum pressure this equipment can handle?
The standard maximum test pressure is 0.40 MPa, with a high-pressure version capable of reaching 0.60 MPa.
Q2: How many samples can be tested simultaneously?
The machine is designed to hold and test 3 specimens at the same time.
Q3: Does the pressure maintain automatically during leakage?
Yes, if water seepage causes the pressure to drop to your set lower limit, the air pump will automatically restart to replenish the pressure.
Q4: What are the dimensions of the permeable plates?
The outer diameter is Φ135mm and the inner diameter is Φ112mm.
Q5: How do I release the pressure after a test?
Once the test is complete, unscrew the water inlet cap slowly to release the internal gas pressure before removing the test piece.
Q6: What power supply is required for operation?
The equipment operates on a standard 220V power supply.
Zealchon Electronic
