Parameter Specification / Description Manufacturer & Model Eaton SV13-20V-C-0-00 Valve Series / Type SV13 - Sectional Mobile Directional Control Valve Section Function Single Spool Work Section (for controlling one double-acting cylinder) Actuation Method Manual Lever (via remote linkage) Spool Type Code -C- : Specific spool notching pattern optimized for cylinder control in open-center systems. Provides metering (feathering) capability for smooth control of cylinder speed. Maximum Flow Capacity 20 US gallons per minute (gpm) per section [Approx. 76 liters per minute (l/min)] Port Size (Work Ports A & B) Typically 3/4" - 16 SAE Straight Threads (O-ring) for 20 gpm size. Port Size (Internal Passages) Designed for standard SAE cavity connections between sections. Maximum System Pressure Up to 3500 psi (241 bar) Load-Holding Valve Setting Integral Pilot-Operated Check Valves. The cracking pressure is factory-set, typically in the range of 350 - 500 psi (24 - 34 bar). Pilot Ratio for Checks Typically a high pilot ratio (e.g., 3:1 or 4:1) to allow easy opening of the checks with low pilot pressure when operating the valve. Neutral (Center) Configuration Open Center – In neutral, the pressure inlet is connected to the tank outlet, allowing pump flow to pass through. The work ports (A & B) are blocked by the spool and the integral check valves. Relief Valve (if present) May include an optional cross-port relief (crossover relief) between A & B ports to absorb shock loads. Not necessarily standard on all "-C-" spools. Body Material Ductile Iron or Cast Steel Seal Material Standard Buna-N (Nitrile) for petroleum-based fluids. Recommended Fluid Petroleum-based hydraulic oils (e.g., AW46, AW68) meeting Eaton specifications. Fluid Temperature Range -40°F to +200°F (-40°C to +93°C) for standard seals. Mounting Bolts between adjacent valve sections via through-holes and tie-rods.