Oleodinamica 2MP DRV-M20-02-420-N-H direct-acting pressure relief cartridge

Oleodinamica 2MP DRV-M20-02-420-N-H is a direct-acting screw-in pressure relief cartridge with an M20 × 1.5 thread and C008 cavity designation. It opens the passage from P to T when inlet pressure exceeds the spring setting. The selected 420 spring option provides a 100–420 bar adjustment range; this is a range, not a fixed preset of 420 bar. N identifies NBR seals and H identifies hexagonal-head screw adjustment. No external mounting body is included in this designation.

The current 2023 manufacturer catalogue and the dedicated retained manufacturer sheet both identify the DRV-M20-02 family, the 420 spring option, a maximum pressure of 420 bar and a mass of 0.15 kg. The complete selected article appears in the supplier heading; its raw manufacturer field is recorded as DRVM2002420NH. The full separated article is not printed as a single factory table row: its actual observed fields are reconciled individually with the manufacturer ordering legend.

The manufacturer editions differ in other technical data. The current catalogue, section 19.4, gives a nominal flow of 40 l/min, installation torque of 35–40 N·m and operating temperature of -20 to +80 °C. The retained dedicated sheet, section 19.3, gives 30 l/min, 45–50 N·m and -30 to +110 °C. The revision supplied under the selected designation has not been established. These differing figures are retained as source references rather than combined into one unqualified specification.

The genuine supplier photograph represents the cartridge construction and is not a certificate of the selected spring, dimensions, coating or supplied revision. Both relevant original manufacturer pages are included in the technical reference so the ordering fields and edition differences remain visible.