HydraForce Replacement Cartridge Valves | CV3-10 CV1-16V CV11-10 1SER90

The heavy-duty screw-in hydraulic cartridge valves manufactured by Chengyuan Hydraulic are high-performance fluid command elements precision-engineered to be fully compatible with HydraForce industrial standards and cavity constraints (such as VC10-2, VC16-2 formats). This professional control array covers critical product designations including CV3-10-P-0-10 / CV3-10-P-0-40 (side-to-nose check configurations), CV1-16V-P-0-5 (high-flow check valve with fluorocarbon seals), CV11-10-P-0-5 (nose-to-side flow direction), and the high-tier integrated electro-hydraulic control block 1SER90F35S4. Constructed from high-alloy hardened steel housings and vacuum-hardened internal poppets, this product suite manages operational pressure ratings up to 350 bar. Every cartridge undergoes 100% simulated load testing for dynamic cracking thresholds and high-pressure reverse seal integrity prior to packaging, ensuring original-matching performance for 100% original-place interchangeability.

Technical Specifications :

• Core Product Series: Industrial High-Pressure Screw-In Cartridge Check & Electro-Hydraulic Component Array

• Model Designations Covered: CV3-10-P-0-10 / CV3-10-P-0-40 / CV1-16V-P-0-5 / CV11-10-P-0-5 / 1SER90F35S4

• Nominal Size & Standard Cavity Interfaces:

  • CV3-10 / CV11-10 Framework: Size 10 Cartridge Specification (VC10-2 Standard 2-way Cavity)

  • CV1-16V Framework: Size 16 Cartridge Specification (VC16-2 Standard 2-way Cavity)

• Maximum System Operating Pressure: Rated from 240 bar up to 350 bar (24 ~ 35 MPa / 5000 psi)

• Maximum Rated Flow Capabilities:

  • Size 10 Flow Matrix (CV3-10 / CV11-10): Rated up to 56 L/min (15 USgpm)

  • Size 16 Flow Matrix (CV1-16V): Rated up to 150 L/min (40 USgpm)

• Cracking Pressure Specification Coding:

  • Code 5: Cracking threshold set at ~0.34 bar (5 psi)

  • Code 10: Cracking threshold set at ~0.69 bar (10 psi)

  • Code 40: High-bias cracking threshold set at ~2.76 bar (40 psi, engineered for maintaining oil-loop backpressure)

• Elastomeric Compound Variant (V): The structural “V” indicator (e.g., CV1-16V) specifies premium Viton O-rings, authorizing extensive service thermal limits ranging from -26°C to 204°C alongside high resistance to corrosive media.

• Reverse Leakage Constraints: Under full nominal pressure lock, internal reverse bypass $\le 5$ drops/minute (near-absolute sealing lock)

Key Technical Advantages:

• Vacuum-Hardened High-Load Poppet Architecture: The central checking poppets within the CV series are machined from premium alloy tool steel and vacuum-hardened to HRC 60 – 62. Complemented by high-precision metal-to-metal linear seating micro-honing, the valve interface resists structural warping or micro-cracking even when subjected to sudden 350 bar system reverse surges.

• Streamlined Internal Porting for Low Pressure Drop ($\Delta p$): Utilizing 3D Computational Fluid Dynamics (CFD) optimization allows us to reshape the geometry of internal throttling lips, spring retainer cages, and radial exit galleries. This reduces forward flow resistance by over 15%, subduing system fluid heat generation and micro-cavitation during high-flow operation.

• Precision Silicon-Chromium Spring Calibration under High Bias: For high-bias configurations like CV3-10-P-0-40 (2.76 bar crack threshold), internal pre-stressed springs are wound from oil-tempered Silicon-Chromium alloy steel wire (Si-Cr Wire). After millions of full-stroke high-frequency duty cycles, spring stiffness relaxation remains below 1.5%, delivering stable backpressure performance.

• Monoblock Electro-Hydraulic Modulation via 1SER90F35S4: This advanced integrated architecture seamlessly binds high-response directional switching with pilot overload relief circuits. It threads directly into complex, custom multi-station block manifolds, substantially minimizing physical hose configurations and eliminating point-to-point leakage points.

Application Areas:

• Custom Mobile Integrated Valve Blocks: Integrated directly into central control manifolds for aerial platform lifts, compact track loaders, and municipal refuse compaction equipment.

• System Backpressure & Load Locking Sub-Circuits: Utilizing the CV3-10-P-0-40 to establish solid return-line backpressure in closed-loop hydrostatics, or as isolation locks in parallel multi-cylinder leveling arrays.

• Main Pump Discharge Anti-Shock Protection: Threaded directly onto primary pump outlets to block downstream high-pressure feedback from accumulator banks or collapsing cylinders during emergency shutdown sequences.

Expert Maintenance Tips:

• Enforce Rigid Calibration of Nominal Cavity Torques: Cartridge internals are engineered to tight tolerances; when locking them into aluminum or steel block manifolds, always employ a calibrated torque wrench (34 N·m standard for Size 10, and 108 N·m for Size 16). Over-torquing compresses the outer sleeve wall, causing internal poppet binding.

• Eliminate Impact Tools to Prevent O-Ring Slicing: Before installing the cartridge into the block cavity, ensure both the cavity wall and cartridge seals are wiped clean and pre-lubricated with clean hydraulic oil. Thread the assembly home slowly and manually; never use pneumatic impact wrenches, which slice or pinch the O-ring profile against the sharp internal step edges of the cavity.

• Maintain Strict System Filtration Constraints: The minimal tracking clearances of check poppets demand premium anti-wear petroleum media. Maintain system filtration thresholds to at least $\beta_{10} \ge 75$ (ISO 4406 18/16/13). Abrasive machining particles or particulate debris larger than $10 \mu m$ will wedge between the sealing seats, triggering holding pressure degradation and high-pressure bypass leakage.