Product Information DIRECTIONAL VALVE Pilot-Operated, Hydraulic Check Valve Type: PC08 Operating pressure: 250 bar (3600 psi) Proof pressure: 350 bar (5000 psi) Flow: 22 L/min Description A screw-in, cartridge type, pilot-operated hydraulic check valve, which can be applied for unidirectional blocking or load holding circuits. PC08 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 option is available. Provide customized based-spring. Please contact customer service. Technical Data Operating pressure 250 bar (3600 psi) Proof pressure Pilot ratio Standard: 1.7 bar (25 psi) With sealed pistion: min. 6.2 bar (90 psi) 1.7 bar (25 psi); 4.8 bar (70 psi); 6.2 bar (90 psi); 8.2 bar Cracking pressure (120 psi); 18.3 bar (270 psi) Spring bias -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. 0.1mL/min (2 drops/min) at 250bar； ② to ① : max. 115mL/min (7cu.in./min) at 250bar (without sealed piston)；② to ① : no leakage (witho

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 PC08 - ** Cavity Seals- N=Buna N V=Fluorocarbon U=Polyurethane Sealed Piston- Blank = None S = with Sealed Piston Note:Sealed Piston require 6.2 bar (90 psi) spring minimum Porting — Bias Spring 017 = 1.7 bar (25 psi) 048 = 4.8 bar (70 psi) 062 = 6.2 bar (90 psi) 082 = 8.2 bar (120 psi) 183 = 18.3 bar (270 psi) Blank=Cartridge Only 2G = G1/4 3G = G3/8 4T = SAE4...