Solenoid Operated Valve DCFB-G60L-4 Full Product Introduction
1. Basic Product Overview
DCFB-G60L-4 is a pilot-operated high-flow hydraulic electromagnetic directional valve (explosion-proof optional) matched with HCZTF series multi-way valves, widely used as electric remote control auxiliary valve for engineering machinery hydraulic systems. It converts electrical signals into hydraulic spool displacement to switch oil circuits, realizing remote automatic control of hydraulic cylinders and hydraulic motor forward/reverse rotation, startup and stop. It is a core electro-hydraulic conversion component for refitting manual multi-way valves into electric proportional remote control systems, commonly assembled on truck cranes, wreckers, sanitation vehicles, mining hydraulic equipment to form automated hydraulic system circuits.
Model Breakdown
- DCF: General series code for hydraulic solenoid directional valve
- B: Explosion-proof coil configuration (anti-explosion version for mining hazardous environments)
- G: Threaded pipe connection
- 60: Rated flow 60L/min
- L: Left pilot oil inlet layout (pilot oil supplied from left side of valve body)
- 4: 4-way spool structure (P, T, A, B four main oil ports)
2. Core Technical Parameters
Item Specification
Product Type Pilot Operated 4-Way Solenoid Directional Valve
Rated Flow 60L/min
Max Working Pressure 31.5MPa
Pilot Control Pressure 1.5~6MPa
Connection Form G-thread pipe connection
Spool Configuration Standard 3-position 4-way, customizable O/H/Y type neutral function
Coil Configuration DC24V standard; AC220V/DC12V optional; DCFB with explosion-proof certification
Valve Body Material Cast iron precision casting
Sealing Kit Standard NBR nitrile rubber; FKM high-temperature resistant seals optional
Compatible Hydraulic Fluid ISO VG46, VG68 anti-wear hydraulic oil
Operating Temperature -20℃ ~ +85℃
Auxiliary Function Manual emergency push button for manual operation during power failure
Warranty Period 1 year
3. Structure & Working Principle
Composed of double-end solenoid coils, pilot valve assembly, main valve spool, reset springs and manual override buttons. Installed between hydraulic pump, multi-way valve and executing hydraulic motor/cylinders:
1. Neutral Position (No Power Supply): Both coils de-energized, main spool centered by double-side reset springs, oil ports connected per preset neutral function; actuators and hydraulic motor keep static without movement.
2. Left Coil Energized: Electromagnetic force pushes pilot spool to shift, pilot pressure oil drives main valve spool rightward, connecting P→A & B→T oil passages, driving hydraulic cylinder to extend or hydraulic motor to rotate forward.
3. Right Coil Energized: Reverse pilot pressure pushes main spool leftward, connecting P→B & A→T oil passages, realizing cylinder retraction or hydraulic motor reverse rotation.
4. Power Failure Emergency Operation: Manually press the side push buttons to mechanically shift the spool, enabling temporary manual operation for equipment maintenance or breakdown rescue.
5. DCFB explosion-proof structure: Sealed coil housing isolates electric sparks from external dust/oil mist, compliant with underground mining explosion-proof safety standards.
4. Core Product Advantages
1. Large 60L/min rated flow design, perfectly matched with HCZTF-120 main multi-way valve flow parameters, no flow bottleneck in combined control of multi-group hydraulic motor and cylinders.
2. Pilot-operated design requires only low pilot pressure for spool switching, low coil power consumption, suitable for vehicle battery DC power supply long-time working.
3. Explosion-proof DCFB version available, adaptable to coal mine, chemical plant flammable and explosive working scenarios, wide application range.
4. Equipped with manual emergency push rod, solves system paralysis risk caused by electrical circuit failure on site.
5. Multiple optional neutral spool functions, flexible to match different load holding, unloading and floating requirements of the hydraulic system.
6. Vibration-resistant cast iron valve body and reinforced coil fixing structure, stable operation under vehicle bumping and construction site severe vibration.
5. Typical Application Scenarios
1. Refitting HCZTF manual multi-way valves into electric remote control systems for truck cranes and road wreckers, realizing wireless/console control of winch hydraulic motor and outrigger cylinders;
2. Mining underground engineering machinery hydraulic actuators remote switching control (DCFB explosion-proof model priority);
3. Large sanitation vehicles, snow removal trucks: electric automatic switching of brush roller hydraulic motor and tipping cylinder circuits;
4. Hydraulic system automation renovation of old construction machinery, replacing manual pull rods with electric solenoid control;
5. Supporting hydraulic braking, clamping auxiliary circuit switching in heavy industrial hydraulic stations.
6. Fault Replacement Instructions
Replace complete DCFB-G60L-4 assembly for the following faults: no spool switching after coil energization, slow reversing action, serious internal leakage leading to hydraulic motor creeping, oil seepage at valve body threads or coil junction, manual override failure. Common causes: pilot spool jamming, coil burnout, spring fatigue and seal aging.
