• KSO-G02 KSO-G03 Hydraulic Solenoid Valves
  • KSO-G02 KSO-G03 Hydraulic Solenoid Valves
  • KSO-G02 KSO-G03 Hydraulic Solenoid Valves

KSO-G02 KSO-G03 Hydraulic Solenoid Valves

Brand: Yishg

Product origin: China

Delivery time: 10-30day

Supply capacity: 300 Pcs/Day

Model: KSO-G02 KSO-G03
Max Displacement: 100 L/Min-160 L/Min
Max Working Pressure: 25 MPa-35 MPa
Shaft Speed Range: 240 Cycles/Min
Control Type: Direct Current Coil
Product Type: Hydraulic Valves
Material: Cast iron

KSO-G02 KSO-G03 Hydraulic Solenoid Valves

Facing Production Line Stalls Due to a Faulty Daikin KSO Valve? Restore Control Fast!

When a directional control valve experiences solenoid coil burnout, internal spool binding, or cross-port leakage in your CNC machine tools, plastic injection molders, or automated press circuits, waiting 12 to 16 weeks for original Japanese brand distributors severely drains your daily plant profitability.

Our premium Daikin-type KSO-G02 (1/4") and KSO-G03 (3/8") High-Pressure Hydraulic Solenoid Valves offer an absolute 100% "drop-in" mechanical replacement. Built in our ISO-compliant source manufacturing facility with 9+ years of micro-tolerance hydraulic tooling mastery, these valves restore snappy millisecond switching response and 35 MPa pressure thresholds—slashing your procurement and MRO budget by up to 70%.

  • 100% Physical Form Match: Standard subplate interfaces (ISO 4401-03 / CETOP 3 for G02; ISO 4401-05 / CETOP 5 for G03). Mounts directly onto existing manifold blocks with zero piping changes.

  • Direct Manufacturer Stocking: Units are pre-assembled with IP65 waterproof coils, dynamically bench tested to 35 MPa, and shipped worldwide within 24-48 hours.

Technical Specifications & Performance Parameters

Cross-verify your equipment's operating pressure curves, required flow capacities, and interface dimensions with our master engineering specification table below:

Valve Model SeriesSubplate Interface Size StandardMax Working PressureMax Flow CapacityCore Application Environments
KSO-G02 Series1/4" Nominal (NG6 / CETOP 3 / ISO 4401-03)35 MPa (350 bar / 5075 PSI)Up to 100 L/min (26.4 GPM)CNC lathe Chuck setups, compact HPUs, packaging lines, tool clamps.
KSO-G03 Series3/8" Nominal (NG10 / CETOP 5 / ISO 4401-05)35 MPa (350 bar / 5075 PSI)Up to 160 L/min (42.2 GPM)Heavy plastic injection molding, metal stamping presses, shears.

Model Ordering Nomenclature Decoded: KSO-G0*--*-30

Code SegmentTechnical Specifications MeaningHydraulic Circuit Function Match
KSOSolenoid Operated High-Pressure Directional Control ValveHigh pressure capacity structure engineered to reduce flow resistance.
G02 / G03Subplate Mounting Size (G02: 1/4" / G03: 3/8")Establishes standardized subplate mounting surface alignment.
2CA / 3C2 / 3C4...Spool Function Type (2-Position / 3-Position Spring Centered)Controls neutral fluid routing behavior (holding locks vs open bypasses).
Solenoid VoltageDC24V / AC220V / AC110V (Terminal Box or Plug-in)Integrates directly into your plant's electric PLC control relays.

Precision Tooling: Engineered for High-Frequency Shifting & Zero Pressure Lag

Directional control valves act as the executive routing nerve center of an automated hydraulic loop. Low-grade generic valves use rough-cast bores with unground landing zones, leading to severe cross-port parasitic leakage, oil thermal buildup, and actuation drift. We eradicate these failure points directly at our factory floor:

  • Single-Micron Spool Match Honing: Internal cast iron bodies and alloy steel spools are match-honed on precision grinding machines to strict tolerances within 1-2 microns, preserving tight hydrodynamic seals and slashing internal bypass leakage.

  • Premium IP65 Wet-Armature Encapsulated Solenoids: Solenoid armatures operate directly in systemic oil fluid. This provides natural lubricating buffering, cushions mechanical switching shock, accelerates heat dissipation, and keeps noise below 65 dB.

  • 100% Dynamic High-Pressure Cycling Test: Prior to crating, every single KSO-G02 and KSO-G03 valve undergoes dynamic cyclic switching tests up to its full peak 35 MPa pressure rating on our test bench. We ensure zero response lag and complete spring return consistency.

Pro Engineering Insight: Escape the Hostile "AC/DC Coil Burnout Loop"

When should you execute a hot swap? If your actuators start experiencing intermittent stroke stalls, high localized thermal buildup at the manifold, or your electrical control breakers repeatedly trip on the solenoid relay line, mechanical spool wear or varnish jamming has initiated.

CRITICAL SOLENOID PROTECTION COMPLIANCE: In alternating current (AC) solenoid configurations, coils experience a massive initial "inrush current" spike when energized. Under normal operation, the internal armature moves instantly to close the magnetic loop, dropping current to a low holding level.

However, if microscopic particulate silt or oil varnish jams the internal valve spool, the armature core stays trapped open. The huge inrush current continues surging unchecked, rapidly overheating the copper windings and burning out the coil insulation within minutes.

Mandatory Protection Protocol: Always thoroughly scrub subplate manifold mounting faces, double-check hydraulic fluid cleanliness indexes, and replace oil filter elements concurrently with new valve integration.

Frequently Asked Questions: KSO-G02 & KSO-G03 Replacement Valves

1. Are your KSO-G02 and KSO-G03 solenoid valves 100% interchangeable with original Daikin valves? +
Yes, 100%. Our replacement directional control valves are manufactured strictly to standard ISO 4401 (ISO 4401-03 for G02 and ISO 4401-05 for G03), CETOP, and NFPA interfaces. Flange bolt spacing, oil port locations, and O-ring sealing grooves match original Daikin specifications identically, requiring zero pipe modifications.
2. What are the maximum pressure and flow capacity limits for the KSO-G02 and KSO-G03 series? +
Both the KSO-G02 (1/4") and KSO-G03 (3/8") series are engineered for high-pressure industrial hydraulic circuits, withstanding maximum operating pressures up to 35 MPa (350 bar / 5075 PSI). The KSO-G02 delivers flow rates up to 100 L/min, while the KSO-G03 handles higher-volume circuits up to 160 L/min.
3. What solenoid coil voltage options do you offer for this series? +
We offer a comprehensive selection of modular solenoid coils, including DC24V, DC12V, AC220V (50/60Hz), and AC110V with terminal box or DIN plug-in connections. All coils feature IP65 waterproof and dustproof encapsulation to ensure long-term durability in harsh factory environments.

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