Anhua County 304 flange valve throat | 304 flange valve throat Shanghai Dongfeng
304 flange valve throat, Anhua 304 flange valve throat
Shanghai Dongfeng Pump Valve Factory is a professional manufacturer of 304 flange valve throats of various specifications. In addition to 304 flange valve throats, there are ANSI American standard valves,
DIN German standard valve, BS British standard valve, KS Korean standard valve, etc. Meet the needs of different customers and markets. Exports to Europe, the Americas, Southeast Asia and many other regions.
"Anhua 304 flange valve throat" valve is also called flexible valve, flexible valve, soft valve, shock absorber, pneumatic butterfly valve, expansion joint, etc. For high-pressure valves, our company specially uses reinforced steel plastic rings as the end reinforcement to effectively enhance the strength of the end face. In the application process, the high-pressure valve end face is affected by the flange tension, which causes the valve end face to pull off from the fixing hole of the connecting flange, resulting in product failure and leakage. Displacement performance test method of Dongfeng valve:
Sample:
Take one of the finished valve products that have been parked for not less than 24h after vulcanization as a sample; Equipment and tools:
Pneumatic pressure test pump or manual pressure test pump;
Pressure gauge (the operating pressure should be between 15% and 85% of the full scale reading);
Test medium:
Water, saponification liquid or suitable liquid.
Boost speed:
When the test pressure does not exceed 7.0MPa, the pressure rise speed is 0.075MPa/s-0.175MPa/s. If the above pressure rise speed cannot be reached, a suitable speed value can be negotiated;
Test preparation:
Install a flat flange cover with exhaust valve on one end of the straight flexible valve sample, and install a flat flange cover with air duct on the other end to connect with the hydraulic pump outlet pipe and fix it on the test bench, fill the test tube with low-pressure water or saponified liquid to exhaust air, close the exhaust valve and stop the pump. Adjust and fix the sample, measure and record the initial length of the sample;
Axial displacement test:
After the test is prepared, apply mechanical force in the axial direction to stretch or compress the sample to the axial elongation or axial compression specified in Table 2, and fix it; Apply the working pressure of the sample to the product at a pressure rise rate of 0.075MPa/s~0.175MPa/s for at least 1min, and check the sample for leakage, cracking, abnormal deformation and other damages.
"Anhua County 304 Flange Valve Throat" should be correctly installed in the use of steel pipes, and the valves should also be regularly inspected and maintained.