YSF9-80 and YSF9-130 series pressure relief valves

YSF9-80 and YSF9-130 series pressure relief valves are mainly suitable for releasing pressure inside the oil tank of large oil immersed power transformers, power capacitors, reactors and other equipment when the pressure exceeds the limit. In addition to the conventional electrical alarm signal, a computer electrical alarm signal function can also be added to achieve dual electrical signal output, and each can be independently led out. Users can choose according to their needs when ordering products.

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 (can be customized according to user needs). Applicable range: altitude 0-4000m.

5. Power frequency withstand voltage: normally open contact 2000V/min, normally closed contact or single pole double throw contact: phase to phase 1000V/min, ground 2000V/min.

6. Insulation performance: normally open contact 2500V, 1000M Ω, normally closed contact or single pole double throw contact: phase to phase 1000V, 500M Ω, ground 2500V, 1000M Ω.