1. Overview
QZB ball valve type automatic air supply device is composed of a two-position three-way electric ball valve, two manual ball valves, one-way valve, safety valve, etc. It can automatically supply gas to the hydraulic device of the hydropower station or other accumulators to maintain the internal gas-liquid ratio.
2. Technical parameters
Rated pressure: 4.0MPa, 6.4MPa, 9.0MPa
medium: air
Diameter: 15mm
Working differential pressure: 0.05MPa
Ambient temperature: 0～40℃
Relative humidity: ≤95%RH
Working voltage: AC220V, DC220V, DC24V
Action time: 15S
Connection method: Welded joint, using JB6381.1-92 standard, ferrule type joint, using GB3733.1-83 standard
3. Dimensions
