Product Information DIRECTIONAL VALVE Pilot-Operated, Hydraulic Check Valve Type: HPC10 Operating pressure: 350 bar (5000 psi) Proof pressure: 525 bar (7500 psi) Flow: 40 L/min Description A screw-in, cartridge type, pilot-operated hydraulic check valve, which can be applied for unidirectional blocking or load holding circuits. HPC10 allows flow from ② to ③ , while blocking flow from the opposite direction. When the sufficient pressure is applied at ① , the fluid can flow from ③ to ② . The pilot ratio for this type of valve is 3:1, which means that the valve cannot be opened until at least 1/3 of the load pressure of ③ is applied at ① . Under the static or no- load conditions, the valve is spring-biased to assure holding. A sealed pilot piston optional is available. Provide customized based-spring. Please contact customer service. Technical Data Operating pressure 350 bar (5000 psi) Proof pressure Pilot ratio Spring bias Standard: 1 bar (14.5 psi) With sealed pistion: min.3.5 bar (51 psi) Cracking pressure 1 bar (14.5 psi); 3.5 bar (51 psi); 14 bar (203 psi) -40℃ ~ 120℃ with standard buna seals Temperature range -26℃ ~ 204℃ with fluorocarbon seals -54℃ ~ 107℃ with polyurethane seals Filtraction Mineral based or synthetics with lubricating properties at viscosities of 7.4~420cSt (50-2000ssu) Cavity tool Pressure drop (bar/psi) Internal leakage ③ to ② : max. 0.25 mL/min (5 drops/min) iat 350 bar ② to ① : max. 115 mL/min (7cu.in./min) at 250 bar (without sealed piston) ② to ① : no leakage (without s

Pilot-Operated, Hydraulic Check Valve Product Information Materials • Optional for different spring range. • Hardened seat for long life and low leakage. • Compact size. • Industrial general cavity. • Optional sealed piston. Ordering Code HPC10 -** Cavity Seals- N=Buna N V=Fluorocarbon U=Polyurethane Sealed Piston- Blank = None S = with Sealed Piston Porting — Bias Spring 010 = 1 bar (15 psi) 035 = 3.5 bar (51 psi) 140 = 140 bar (203 psi) Blank=Cartridge Only 2G = G1/4 3G = G3/8 6T = SAE6 8T = SAE8 Other porting types defined by customers Cartridge: Weight: 0.11 kg (0.24 lbs) ; Steel with hardened...