Sectional hydraulic directional control valve 250L GS series

spoolpilot-operated

Sectional valves stated in other words sectional directional control valves are highly flexible and have various auxiliary valves such as anti-shock, anti-cavitation, electro hydraulic pilot operated unloader, hydraulic pilot unloader etc. Generally sectional valves have check valve for each work section are from 1 to 12 sections with open center, closed center hydraulic circuits. Various sections used together such as series, parallel or tandem circuit valve. Also sectional valves may have intermediate pump and tank sections. WORKING CONDITIONS This catalogue shows technical specifications and diagrams measured with mineral oil of 46 mm2/s – 46cSt viscosity at 40°C temperature. Internal leakage A(B)®T Dp=100 bar – 1450 psi fluid and valve at 40°C 4cm3/min. 0.24 in3/min. Hydraulic fluid Mineral base oil Fluid temperature with NBR seals from - 20° to 80°C with FPM (VITON) seals from - 20° to 100°C Viscosity operating range from 15 to 75 mm2/s from 15 to 75 cSt Min. 12 mm2/s 12 cSt Max. 400 mm2/s 400 cSt Max. level of contamination 19/16 – ISO 4406