Safety valves SVM-20 or SVP-16 are designed for the protection of installations for the flow of liquids at lower pressures up to 20 or 16 bar. The SVM-20 safety valve is designed for pressures up to 20 bar with a working chamber made of metal, aluminum bronze, raw cast iron or stainless steel. The SVP-16 safety valve is designed for pressures up to 16 bar with a working chamber made of non-metal: hard PVC or Teflon, depending on the aggressiveness of the medium.