The under and overpressure blocking device D.B.G.N. type is used in fuel gas plants, with the aim of blocking the  gas flow towards consumer, in case of pressure increase or drop above specified limits downstream the regulator.

The servo-controlled diaphragm safety valve type RSDS  is meant for equip especially natural gas regulating and measuring stations or meant for other gas facilities working using the technical parameters and operating data of the tap.

The safety spring valves are automatic acting armatures, designed to prevent exceed of the maximum allowed working pressure within vessels and pressure plants.

Blocking spring valve for heating fluid, shortly named SBA is designed for gas heating exchangers in order to avoid pressure exceed and gas intrusion in the water circuit of  the heating plant.