Vesta TU series are conceived for durability and long use The bodies for the wole series are in die-cast aluminium while bowls and setting knobs are made in special polymer for high resistance.
For more durability, metal bowl versions with prismatic indicator are available for the TU-3, TU-4, TU-4H and TU-5 series.
Finally in order to add more strenght and better output control, pressure regulators are operated by an acetal polymer piston with NBR lip seals.
www.F.R.L. UNIT SIZE 4H HIGH PRESSURE (G 1/2") | Vesta.it