LITUO as a high-tech enterprise specializing in the R&D, manufacturing, and sales of testing equipment and instruments. With a professional technical R&D team, the company continuously innovates and introduces advanced technologies and equipment from both domestic and foreign sources. Our product range includes furniture mechanical life testing, environmental testing chambers, bathroom series testing, and other testing instruments. We also provide personalized testing solutions based on customer requirements.
Here are testing about show performance testing system.
(LIUO shower performance testing machine)
1.Pipe thread accuracy inspection
The pipe thread accuracy of the external connection of the shower head should be measured with a thread gauge of corresponding accuracy. The pipe thread accuracy of the external connection of the shower head should meet the relevant accuracy requirements.
2. Safety performance inspection
- Install the shower head in a state of use, with the water temperature at 42 C2C, dynamic pressure 0.10 MPa 0.02 MPa and dynamic pressure 0.30 MPa ± 0.02 MPa respectively. After stable use for 10 minutes and 10 seconds, check whether the various parts of the shower head are by hand. Flexible, check the shower head, each component of the shower head should be flexible, the shower head should have no obvious deformation, and its water jet pattern should not change.
- Install the shower head in use, with the water temperature at 70 C ± 2 C, the dynamic pressure 0.05 MPa 0.02 MPa and the dynamic pressure 0.50 MPa ± 0.02 MPa respectively. After stable use for 10 minutes and 10 seconds, check the various features of the shower head by hand. Check whether the parts are flexible. Check the shower head. Each part of the shower head should be flexible, the shower head should have no obvious deformation, and its water jet pattern should not change.
3. Surface coating and plating quality
- Rapid cooling and rapid heating performance test
The testing steps for quality requirements for surface coating and plating of plastic parts are as follows:
a) Place the sample in an oven with a temperature of 70°C ± 2C and keep it for 30 minutes;
b) Immediately place the sample at a temperature of 15C~20C and keep it for 15 minutes;
c) Immediately place the sample at a temperature of -30C~-25C for 30 minutes;
d) Immediately place the sample at a temperature of 15C~20C for 15 minutes.
The above is a rapid cooling and rapid heating test cycle, and the test is carried out accordingly, for a total of 5 cycles. After the cycle test, visually check whether the coating on the surface of the sample is damaged under a scattered light source of 700 1x~1 000x intensity at a distance of 300 mm and 20 mm from the sample.
4. Sealing performance inspection
Connect the sample to the water supply pipeline. The water supply temperature is 70℃±2℃, and the test dynamic pressure is 0.05MPa±0.02MPa and 0.50MPa±0.02MPa respectively for 5 minutes±10s. Check whether there is any leakage between the shower head and its connecting parts. Water seepage phenomenon.
5. Mechanical strength inspection
There should be no cracks, visible permanent deformation or other damage after inspection.
6.Hot and cold fatigue resistance performance test
The water supply temperature at the hot water end is 70 C2, the water supply temperature at the cold water end is 20 C2, and the water supply flow rate is 0.30 MPa ± 0.02 MPa. When conducting the test under the conditions of the maximum flow gear and the conversion time not exceeding 2 s, 2 n cold water is supplied first, and then 2 min hot water, for one cycle, conduct 300 cycle tests. After inspection, there should be no leaks, cracks, visible permanent deformations and functional failures.
7. Flow inspection
Test water supply temperature T<30C, the test has the following steps
- Adjust the test device at a dynamic pressure of 0.10 MPa ± 0.02 MPa, keep the pressure stable for 1 minute, and then record the flow rate q1. Keep the status of the test device unchanged and turn off the water supply.
- Install the sample on the test device, start the water supply, adjust the test dynamic pressure to 0.10 MPa ± 0.02 MPa, keep the pressure stable for 1 minute, test and record the flow rate of the shower head; test 3 times, and take the arithmetic mean Q1.
Traffic requirements:
8. Tensile performance inspection
Install and fix the shower water inlet with the matching connecting device thread, apply an axial pulling force F of 500 N10 N to the shower head, and maintain it for 15 s5. Check whether there is any obvious damage to the shower handle, shower head, etc. at each connection part. Remove the shower head and connect it to the water supply pipeline. Keep it for 5 minutes ± 5 seconds under the conditions of water supply temperature not higher than 30C and dynamic pressure of .50 MPa0.02 MP. Check whether there is leakage in the shower head and its connecting parts.
Resistance to installation load inspection
The shower connection pipe thread resistance to installation load shall be tested in accordance with regulations. After the test, the thread shall have no cracks, no damage and meet the requirements in the table below.
10. Cooling test
It is stipulated that the temperature drop should not be greater than 3C during the test.
11. Shower function conversion life test
This test should be carried out for showers with 2 or more water jets. After 10,000 cycles in accordance with regulations, the requirements should be met.
12. Handheld shower anti-siphon inspection
In the shower system, if the connecting parts other than the hand-held shower head, such as hoses and faucets, do not have anti-siphon devices, the hand-held shower head should have anti-siphon function. The anti-siphonage performance is tested in accordance with regulations, and there is no visible water level in the open pipe.
13. Spherical connection swing performance inspection
For movable fixed showers or shower heads with ball connections, this test should be carried out. After 10,000 cycles in accordance with the regulations, the ball connection parts should have no leakage and should meet the requirements.
14. Function switching force test
For a multi-functional shower head, connect the sample to the water supply pipeline under the conditions of water supply temperature T ≤ 30° and dynamic pressure 0.25 MP ± 0.02 MPa, and use a thrust meter to test the force value at the end of the handle to switch the function. Its function switching force or torque should not be greater than 45 or 1.7 N·m; for products designed for disabilities, it should not be greater than 22 N before and after life testing.
15. Ball head swing power test
For movable fixed showers with ball connections, the ball head swing force is required to be tested and should not exceed 45N.
16. Drop test
Handheld showerheads are tested in accordance with regulations, and no deformation or cracks that affect safety and normal operation are allowed. Parts that become separated or fall off during the test can be reinstalled and the sample should maintain normal functionality. After the test, the hand shower should comply with the requirements.
17. Injection force inspection
When tested in accordance with regulations, the average spray force of a handheld shower should be no less than 0.85 N. If the flower wine contained in it has multiple ways of discharging water, the maximum average spray force will be used.
Post time: Dec-20-2023
