Cartridge Pilot Check Valve – LPC-10-3.4-8T

The Cartridge Pilot Check Valve LPC-10-3.4-8T is a screw-in, cartridge-style, pilot-to-open ball-type check designed for cavity size 10 with #8 SAE porting and marketed under the LPC-10 family by suppliers such as Island Hydraulic Supply. Key features include a 3.4 bar cracking option (part code 3.4), a 3.5:1 pilot ratio, rated operating pressure up to 250 bar, very low internal leakage (≈2 drops/min at 250 bar), wide temperature range (‑40°F to +250°F / ‑40°C to +120°C), and compatibility with mineral-based hydraulic fluids (7.4–420 cSt).

The pilot-to-open design permits free flow in the forward direction while holding pressure and preventing backflow until a pilot signal opens the check, delivering reliable load-holding and remote-release capability under load—ideal for cylinder lock-off, safety interlocks, sequence and counterbalance circuits, and compact manifold or cartridge manifold installations in mobile and industrial hydraulic systems. The cartridge format reduces installation footprint and simplifies servicing, while the low leakage and robust pressure rating improve system efficiency and stability in demanding applications.

Related categories: Valves · Cartridge Valves · Pilot Check Valves