Electric Sectional Directional Control Valve “Series 36″. The Series 36 is available with electric unloading in the inlet section. The flow goes directly to tank in the neutral condition. Neutral flow does not pass through the spool sections; therefore, the neutral pressure drop to tank remains low and constant regardless of the number of spool sections. This neutral path is closed whenever a section is activated. If two or more spools are shifted simultaneously, then the spool sections are in parallel. In parallel the flow will take the path of least resistance and the lightest load will move first. The spools are shifted by solenoid controlled pilot valves. This method assures positive shifting and it also minimizes the amperage draw. It is common to have applications where high flow above 15 gpm (56.7 lpm) is needed out some sections and low flow below 15 gpm (56.7 lpm) is needed out other sections. The Series 38 can be used for high flow and the Series 36 can be used for low flow. Series 36 and Series 38 sections can be stacked together to meet both flow requirements. Any combination up to twelve sections can be assembled. Flow can be controlled by machining a pocket in the pressure line so that an orifice plate can fit between the spool sections. If more than one orifice is used in an assembly, then they must be arranged with the largest orifice first (closest to the inlet). Precision ground heat treated spool assures long life. Diamond honed spool bore provides consistent spool fit with low leakage. O’RING PORTS to eliminate leakage. OIL GROOVES on the spool provide smooth spool motion. PILOT CARTRIDGE assures positive force to shift spool. 12 gpm (45.4 lpm) Nominal Capacity (see flow chart). 3500 psi (241 bar). 100 psi (6.9 bar) max tank pressure. 12 sections max (consult factory for more). 10 Micron Filtration Recommended. Assembly Torque = 85 inch-lbs. (9.6 N m). Spool Leakage = Less than 0.50 in3 (819 cm3)at 1000 psi. Weight -Inlet/outlet = 6 lbs. Low spool section = 4 lbs. High spool section = 6.5 lbs. Above weights include cartridge, coil, and reliefs. Port Sizes -Inlet / Outlet #10SAE (7/8 – 14). Work Ports #8SAE (3/4 – 16). 110 mS for unloader. 600 mS for section. Coil -1.25 amp Inrush current. 1.00 amp Steady state current. Heat Treated Steel Spools. Buna N O’Rings (standard). Stress Proof Steel Tie Rods.

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