3421 | Valvola a galleggiante 1”1/4 NPT


The Float Valve 3421 opens when the turbine oil level rises and allow excess flow to be removed from the tank The Double seat execution allow the valve to open with a very limited level rise even if the tank is pressurized.
Execution Bronze or SS.
Metallic seat and rugged construction allows a very long life of the valve
Valves are tested with air as a standard and with helium as an option


3290 | Float Valve 2” NPT


The Float Valve 3290 is normally opened and closes the flow when an High level is reached.
The valve is installed using the mounting flange with the float inside the tank and the body outside the tank
Metallic seat and rugged construction allows a very long life of the valve
Execution SS
Valves are tested with air as a standard and with helium as an option


4033 | By Pass Valve


The Valve 4033 is realized in several dimensions and allow to by pass the flow when the set pressure is achieved.
The disk has parabolic shape to have a very smooth action even with very small flow to be discharged.
The disk is provided with an O-Ring that doest allow the Turbine oil to go in the upper par of the valve. The valve is fitted with a ¼” Thread that allows to keep pressurized the upper part of the valve and to avoid any loss
Execution CS
Valves are tested with air as a standard and with helium as an option


4021 | Valvola Riduzione Pressione Differenziale


The Valve 4021 works normally open when the pressure downstream rise the diagrapham moves the disk to reduce or even to stop the flow of turbine oil.
When the pressure downstream fall below the limit the diagrapham reopen gradually the valve.
The Double seat execution allow the valve to open without effort
Execution SS
Metallic seat and rugged construction allows a very long life of the valve
Valves are tested with air as a standard and with helium as an option


Ruro s.a.s. di Attilio Rozza & C. fabbrica rubinetteria industriale e accessori per impianti carburante via Moscati, 16 - 20154 MILANO