Sandwich‑plate pilot‑operated check valve, size NG10, ISO4401‑05 mounting pattern, max working pressure 315bar, max flow rate 120L/min, dual‑port leak‑free blocking for A & B channels, cracking pressure 3bar, pilot ratio 3:1, NBR standard seals, pre‑opening function, stack‑mount design, mineral hydraulic oil compatible, fluid temp‑30℃~+80℃, ambient temp‑30℃~+80℃, any mounting position, CE certified
