Monobloc hydraulic directional control valve 45L GMB

spool

Monoblock valves are simpler than sectional valves and monoblock valves can work under higher pressure. The body type of the valve permits higher pressure because of robust, covered structure. Sealing of monoblock valve are better than sectional valves so applications which uses higher pressure than 350 bar prefer monoblock valves. Burst pressure of the monoblock valves are around 700 – 900 bar so it can work safely under 350-400 bar. Mostly monoblock valves do not have auxiliary valves such as anti-shock or anti cavitation valves. WORKING CONDITIONS This catalogue shows technical specifications and diagrams measured with mineral oil of 46 mm2/s – 46cSt viscosity at 40°C temperature. Back pressure (max.) on outlet port T 25 bar 260 psi Internal leakage A(B)®T Dp=100 bar – 1450 psi with fluid and valve at 40°C 3 cm3/min. 0.18 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