HydraForce SV Series Solenoid Cartridge Valve | SV5-8 SV13-10 SV13-12

The SV Series of screw-in solenoid cartridge valves manufactured by Chengyuan Hydraulic are premium electro-hydraulic directional control elements engineered to fully cross-reference global HydraForce cavity technical standards (including VC08-2, VC10-2, and VC12-2 matrices). This series is universally relied upon within mobile machinery and industrial hydraulic manifold blocks to implement precise, remote electric on-off fluid control. Covering the high-demand technical designations provided—SV5-8-0-0-00, SV13-10-C-0-00, SV13-10-0-0-00, SV13-12-0-0-00, and SV13-12-C-0-00 (encompassing spool-type, normally open and normally closed configurations, where suffix 00 denotes no manual override), Chengyuan guarantees 100% original-place interchangeable plug-and-play compatibility. Every single cartridge undergoes 100% full-load simulated condition testing and dynamic leakage profiling prior to dispatch, ensuring robust actuation boundaries under continuous 250 bar operating envelopes.

Technical Specifications :

• Brand Compatibility: HydraForce SV Series Compatible Matrix

• Target Nomenclature Covered: SV5-8-0-0-00, SV13-10-C-0-00, SV13-10-0-0-00, SV13-12-0-0-00, SV13-12-C-0-00

• Cavity Specification Matrix:

  • SV5-8 Series: Fits VC08-2 Cavity (7/8-14 UNF Thread)

  • SV13-10 Series: Fits VC10-2 Cavity (7/8-14 UNF Thread)

  • SV13-12 Series: Fits VC12-2 Cavity (1-1/16-12 UN Thread)

• Circuit Functionality & Construction:

  • SV5-8-0: Spool-type, 2-way, 2-position, normally open configuration

  • SV13-10-0 / SV13-12-0: Spool-type, 2-way, 2-position, normally open configuration

  • SV13-10-C / SV13-12-C: Spool-type, 2-way, 2-position, normally closed configuration

• Maximum Rated Operating Pressure: 250 bar (3625 psi)

• Nominal Flow Rating: SV5-8 up to 11 L/min; SV13-10 up to 23 L/min; SV13-12 up to 30 L/min

• Maximum Internal Slippage: Spool configuration limits internal leakage below 82 $cc/min$ at 207 bar

• Solenoid Voltage Input Options: 12V DC, 24V DC, 110V AC, 220V AC (Optional integrated bi-directional TVS diode coils)

• Sealing Compounds: Standard Buna-N (NBR) with heavy-duty Teflon (PTFE) back-up rings; Optional premium Fluorocarbon (FKM) for high-temperature fluid loops

Key Technical Advantages:

• Micron-Level Precision Spool & Cage Tolerance: Utilizing specialized sub-micron centerless grinding and internal bore-honing machinery, the clearance gap between the sliding spool and the outer cage is maintained strictly within 2-4 microns. This minimal tolerance reduces internal slippage at maximum system pressures while maintaining absolute mechanical freedom to prevent shifting jams.

• Case-Hardened Alloy Steel Metallurgy: Both the spool and the cage are crafted from high-purity alloy steel blanks subjected to intensive carburizing heat treatment (> HRC 60). This hard-wearing surface withstands aggressive mechanical impacts from continuous duty cycles and resists the abrasive erosion of micro-particles suspended in high-velocity oil streams.

• Corrosion-Proof Zinc-Nickel Coating & Hermetic Tube Assembly: All exposed external steel surfaces, including the installation hex and mounting threads, are coated with a high-spec Zinc-Nickel electro-plating that survives 720+ hours of neutral salt spray testing. The armature guide tube is hermetically sealed via continuous TIG welding to block rain, salt mist, and ambient mud.

• High-Duty Class H Solenoid Coil Technology: Coils are wound with premium Class H (180°C) insulated copper magnet wire and completely encapsulated in high-impact engineering polymers. This heavy-duty assembly operates reliably at 100% duty cycle even in 50°C thermal environments, ensuring full magnetic stroke force without hot-state power drops.

Application Areas:

• Mobile & Outrigger Lift Circuits: Centralized outrigger lockup safety manifold blocks for truck-mounted cranes and telescopic telehandlers.

• Aerial Work Platforms: Electro-hydraulic emergency lowering control loops for scissor lifts and articulated boom platforms.

• Agricultural Hitch Controls: Auxiliary remote implement control valves and electro-hydraulic cutting head switches for heavy tractors and mowers.

• Mini Hydraulic Power Packs: Power units for material handling warehouse stackers, tail-lifts, and automated dock levelers.

Expert Maintenance Tips:

• Enforce Strict Installation Torque Profiles via Calibrated Wrenches: Cartridge valve outer cages are highly sensitive to mechanical over-torquing. For SV5-8 and SV13-10 series, tighten precisely to 33-35 N·m; for SV13-12 series, tighten precisely to 47-54 N·m. Over-tightening causes micro-stretching of the cage, which binds the sliding spool and stops electronic actuation.

• Purge Trapped Air Pockets Prior to Initial Loaded Running: Replaced or newly installed cartridges harbor localized air pockets. During circuit commissioning, cycle fluid through the solenoid valve several times under zero or low-pressure conditions to completely vent the cavity. Skipping this step risks adiabatic compression of air bubbles, generating scorching hot spots that destroy elastomer seals.

• Maintain Strict Oil Contamination Boundaries: Spool-type cartridge valves are vulnerable to fluid contaminants due to their close structural clearances. Ensure the main loop is safeguarded by an inline filter with an absolute rating of at least 10 microns using premium fiberglass media. Periodically audit oil quality to prevent micro-scratching on the spool lands that triggers premature leakage.