1. The valve shall be stored in a dry and ventilated room and blocked at both ends of the access. 2, the valve should check regularly, and remove the dirt on it, smear anti-rust oil on its surface. 3. After installation and application, the valve should be regularly repaired to...
Performance testing requirements 1, a certain specification of valve mass manufacturing, should entrust the authority of the following performance testing: (2) valve in the pipeline under the condition of water flow resistance coefficient detection. 2. The valve shall be tested as follo...
1, the valve model should indicate the national standard number according to the requirements. If the enterprise standard, should indicate the model of the relevant description. 2. The working pressure of the valve shall be ≥ the working pressure of the pipeline. On the premise of ...