Voss Hydraulic NRV & Shuttle Valves comes with Nuts & Olives

NRVs (or non-return valves) are installed within hydraulic systems in order to prevent hydraulic fluid flowing in the opposite direction to which it is intended.

A shuttle valve, also known as a double check valve, allows pressure in a line to be obtained from alternative sources. It is primarily a pneumatic device and is rarely found in hydraulic circuits.