Detailed description
1. Scope of Application
Applicable to butterfly valves for SF6 gas transformers
2. Technical Requirements
2.1 Operating Conditions
2.1.1 Fluid: SF6 gas
2.1.2 Pressure: Short-term: -0.1~+0.3Mpa; Long-term: 0.12~+0.19Mpa
2.1.3 Ambient Temperature: -30~+40°C; Gas Temperature: -30~+110°C
2.1.4 Number of Opening and Closing Cycles: 4~5 times/year, normally used in the fully open state
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