SCZ573 Umbrella Gear Insert Plate Valve

The SCZ573 umbrella gear plug valve drive device can be equipped with electric, pneumatic, manual, umbrella gear rotation and other devices. Pneumatic devices can be equipped with air filters, solenoid valves, and sensors. If the above driving devices are installed, the pneumatic device should be specified in the contract.
SCZ573 Umbrella Gear Insert Plate Valve Shell Test and Sealing Test:
1. The shell test and sealing test media for plug-in valves are water (including preservatives), kerosene, or other suitable liquids with a viscosity not greater than water.
2. The sealing pair is a non-metallic sealed plug valve, and the sealing shell test and requirements are in accordance with GB/T13927-92 Class D.
3. The sealing pair is a metal sealed plug valve. For those with sealing performance requirements, the leakage rate of the sealing test is calculated as 1 × DNmm3/s. For those without sealing performance requirements, this test is not conducted.
4. The plug-in valve driven by electric, hydraulic, and pneumatic devices should be closed three times after the position is set, and the shell and sealing tests should be conducted according to the requirements of 1 and 3.
5. The cleanliness requirements for plug-in valves shall comply with the provisions of JB/T7748.
6. Static pressure life test.
7. The number of static pressure life tests for plug-in valves shall be in accordance with regulations, while other technologies shall comply with the provisions of JB/Z 234.