YSF9-25, YSF9-50 series pressure relief valves

The YSF9-25 and YSF9-50 series pressure relief valves are a new type of pressure relief valve. This product is used to protect oil tanks of oil immersed electrical equipment, such as transformers, high-voltage switches, power capacitors, reactors, on load tap changers, etc.

1. Installation position: on the fuel tank cap, on the raised seat, or on the upper side wall of the fuel tank.

2. Environmental temperature: -30 ℃~+70 ℃ (can be customized according to user needs to support up to -45 ℃~+70 ℃), working environment requirements: -30 ℃~+115 ℃ (can be customized according to user needs to support up to -45 ℃~+115 ℃).

3. Relative humidity: not exceeding 95% at+20 ℃.

4. Protection level: IP55 (customizable according to user needs), applicable range: altitude 0-4000m.

5. Power frequency withstand voltage: normally open contact: 2000V/min, normally closed contact: 1000V/min, ground 2000V/min.

6. Normally open contact: 2500V, 1000M Ω, normally closed contact: 1000V, 500M Ω, ground 2500V, 1000M Ω.