Comatrol Replacement 12V 26W Solenoid Coil M16-12D-26W-DN 17114581

The industrial-grade Comatrol Compatible M16 Series Heavy-Duty Solenoid Valve Coils, manufactured by Chengyuan Hydraulic, are premium electrical execution elements engineered for off-highway mobile machinery, diesel engine auxiliary systems, heavy-duty excavator pilot manifolds, and open-air automotive hydraulic setups. Operating as the primary electromagnetic actuator for screw-in cartridge valves, the thermal endurance constraints and magnetic response parameters of these coils directly govern the shift reliability and switching responsiveness of the encompassing fluid power circuit.

This high-capacity components profile targets the global B2B mobile hydraulic supply chain and commercial fleet maintenance sectors, providing 100% direct drop-in interchangeability with Comatrol’s signature 16mm inner diameter high-power coils, matching reference designations: M16-12D-26W-DN (and corresponding enterprise material codes such as 17114581 and 17114141). These coils are widely used in hydraulic fan drive systems, proportional throttle networks, master safety interlocks, and vehicular hydraulic braking loops mounted in close proximity to heavy diesel engines. The technical product code systematically translates to: “M16” for a 16.0 mm armature tube tracking port, “12D” representing standard 12V DC vehicular power criteria, “26W” specifying a 26-Watt high-force output signature, and “DN” highlighting an integrated Deutsch DT04-2P heavy-duty standard dual-pin connector.

Chengyuan’s alternative solenoid coils are manufactured to conform precisely to original Comatrol technical dimensions—including internal diameter positioning tolerances, axial stacking length, and nominal electrical resistance baselines. During field repairs or original factory manifold assembly, service technicians can perform an immediate changeout directly onto existing cartridge valve stems without adjusting the wiring harness or remanufacturing mounting hardware.

Industrial diesel engine compartments expose components to intense heat, violent low-frequency vibrations, moisture, and chemical oil residues. Low-grade alternative coils under continuous duty often suffer from internal wire shorting, connector housing stress fractures, or dramatic magnetic force drops due to temperature elevations. To secure consistent field uptime, 100% of Chengyuan’s replacement M16 coils undergo 100% strict electrical quality assurance testing. Verified under 1.5x overvoltage surges, thermal saturation cycles, and submersible vacuum leak testing, each coil is certified for long service life.

Technical Specifications

• Product Classification: Screw-In Cartridge Valve High-Power Solenoid Coil

• Compatible Reference Platform Series: Comatrol / Danfoss Screw-In Cartridge Fluid Power Automation Blocks

• Armature Tube Fitment Bore (Inner Diameter): 16.0 mm (M16 Series standard specifications)

• Axial Stacking Enclosure Height: Precision machined to match Comatrol 16mm standard cartridge stem shoulders

• Nominal Operating Voltage Parameter: 12V DC (standard off-highway mobile fleet electrical baseline)

• Nominal Continuous Power Dissipation: 26 W (high-force solenoid profile)

• Electrical Connection Interface Configuration: Integrated Deutsch DT04-2P (molded dual-pin waterproof socket)

• Thermal Insulation Class Threshold: Class H Certified encapsulation (rated to handle up to 180°C internal thermal thresholds)

• Permissible Working Ambient Temperature: Spans from -40°C to +100°C (optimized for heavy engine engine bay mounting locations)

• Environmental Ingress Protection Rating: Attains IP67 / IP69K compliance when paired with proper mating plugs and base seals

• Outer Encapsulation Substrate: High-density, impact-resistant, glass-reinforced flame-retardant nylon/polyester compound

• Magnetic Flux Frame Composition: Low-carbon steel yoke casing finished with heavy trivalent zinc plating for prolonged marine and salt-spray corrosion resistance

Key Technical Advantages

• Class H High-Temperature Oxygen-Free Copper Windings: The internal coil core is wound with heavy-gauge oxygen-free copper wire rated to 180°C, layered on high-precision automated winding lines. This ensures the windings retain structural insulation integrity under continuous duty cycles (100% ED rating) when internal resistance generates intense thermal dissipation. It stabilizes the torque-amperage curve to prevent premature thermal burnout.

• Monoblock Plastic Encapsulated Casing Architecture: The copper windings, internal steel yoke, and electrical connections are completely sealed inside an advanced glass-reinforced polymer frame via high-pressure injection molding. The seamless exterior housing eliminates joints to provide high structural rigidity against mechanical impact while sealing out water, oil, and road salt to prevent internal short circuits.

• Integrated Deutsch DT04-2P Molded Junction Interface: The dual-pin Deutsch socket is molded directly into the composite outer casing rather than attached via exposed pigtails. Featuring corrosion-resistant nickel/gold-plated contact pins and secondary internal silicone seals, this assembly withstands severe low-frequency engine vibrations to prevent electrical arcing or loose terminal faults.

• Low-Hysteresis High-Permeability Flux Frame: The external flux frame enclosing the copper matrix is formed from electrical-grade low-carbon steel. Cold-drawn to precise dimensions, it provides high magnetic permeability with negligible residual magnetism. This allows the magnetic field to build and collapse within microseconds of receiving a PLC signal, ensuring crisp cartridge valve response.

Application Areas

Chengyuan’s high-performance replacement Comatrol 12V 26W solenoid coils deliver consistent performance across demanding machinery setups:

• Diesel Engine Accessory Hydraulics: Managing proportional control valves for hydrostatically driven engine cooling fans and auxiliary hydraulic governor controls.

• Mobile Machinery Integrated Manifolds: Powering the primary cartridge stacks on truck-mounted utility cranes, asphalt pavers, compactors, and specialized municipal waste management fleets.

• Agricultural & Forestry Harvester Blocks: Serving as the electrical actuator for pilot multi-way valve banks on large grain harvesters, forwarders, and wheel tractors.

Expert Maintenance Tips

• Never Energize the Solenoid Coil While It Is Removed from the Metal Cartridge Valve Stem (Avoid “Dry Firing” the Actuator): Solenoid coils depend on the metal valve stem to act as a heat sink and close the internal magnetic loop. Energizing a coil in open air drops its inductance, causing current to spike rapidly. This builds up intense heat that can melt the internal wire insulation and ruin the coil within minutes.

• When Fitting the Coil onto the Valve Stem, Ensure the Locking Nut and Associated Weather Seals (O-Rings) Are Tightened to Specification: A loose retaining nut allows the coil to slide axially under fluid shifts and engine vibration, accelerating wear on the stem and composite housing. This can also allow moisture to pool inside the bore, leading to rust. Avoid overtightening to prevent cracking the composite frame.

• Mandatorily Disconnect All Solenoid Coil Deutsch Plugs Before Carrying Out Arc Welding Repairs Anywhere on the Machine Frame: Arc welding introduces high parasitic currents and voltage spikes into the equipment chassis. Leaving the coils connected can cause these electrical surges to puncture the winding insulation or back-feed into the central PLC controller, damaging sensitive electronics. Always isolate the wiring harness before welding.