when the entrance pressure exceeds the set release pressure, safety relief valve will not open. When the entrance pressure below the set value, safety relief valve will automatically shut down.
two, the technical parameters of
models: MS20, ms25
connection:   UNI-ISO thread connections; the maximum inlet pressure 7/1
set emission pressure: red spring: 30~ 130mbar
materials: the valve body and valve cover: aluminum
spring: stainless steel: steel
valve sealing element: NBR (NBR).
other parts: copper, aluminum and coated steel.