NG6 electromagnetic directional valve 4/2 4WE6D6X/EG24N9K4 NG6 electromagnetic directional valve 4/2 4WE6Y6X/EG24N9K4 NG6 electromagnetic directional valve German Rexroth hydraulic electromagnetic

NG6 electromagnetic directional valve 4/2 4WE6D6X/EG24N9K4 NG6 electromagnetic directional valve 4/2 4WE6Y6X/EG24N9K4 NG6 electromagnetic directional valve German Rexroth hydraulic electromagnetic

FQA;

Q5: What are the key precautions for installing the 4WE6 series valve?

1. Cleanliness First: Flush the hydraulic pipeline before installation to remove metal shavings, dust, or oil residues—impurities can scratch the valve core or block ports.
2. Port Alignment: Ensure the valve’s P/A/B/T ports match the pipeline labels (misconnection may reverse actuator movement or damage the valve).
3. Torque Control: Tighten threaded ports or flange bolts to the manufacturer’s specified torque (e.g., M16 bolts: 25–30 N·m). Over-tightening may deform the valve body; under-tightening causes oil leakage.
4. Solenoid Protection: Install the solenoid coil vertically (if possible) to avoid water or dust accumulation. For outdoor use, choose a coil with IP65/IP67 protection (e.g., 4WE6...-N9K4 = IP65).
5. Orientation: Most models support horizontal/vertical installation, but avoid upside-down mounting (gravity may affect core reset, especially for spring-return valves).

Q6: Is the 4WE6 series compatible with different hydraulic oils?

• NBR Seals (U-suffix): Compatible with mineral oil (the most common hydraulic oil, e.g., ISO VG 32/46), water-glycol mixtures (up to 40% water), and phosphate ester fluids (low concentration).
• FKM Seals (V-suffix): Compatible with high-temperature mineral oil, synthetic esters, and aggressive fluids (e.g., diesel, lubricating oil).

4. Maintenance & Troubleshooting

Q7: What regular maintenance is required for the 4WE6 series?

• Leakage Inspection: Check P/A/B/T port connections and solenoid coil O-rings for oil stains. Replace worn O-rings (use original manufacturer parts to ensure size/material matching).
• Filter Cleaning: Clean or replace the hydraulic system’s suction filter and return filter (clogged filters reduce oil flow and cause core jamming).
• Solenoid Check: Measure the coil resistance with a multimeter (DC 24V coil: 30–40 Ω; AC 220V coil: 150–200 Ω). Abnormal resistance (e.g., 0 Ω = short circuit, ∞ Ω = open circuit) means the coil needs replacement.
• Core Lubrication: For valves used in dusty environments, apply a small amount of hydraulic oil to the core (via the valve’s oil filling port) to reduce friction.

Guang Zhou PMD Machinery Parts co ltd is a foreign trade company integrating development, sales, procurement, warehousing, transportation and service. Founded in September 2013, we have more than twelve years of experience in machinery trade.

Our main products are Excavator Hydraulic Spare Parts, Hydraulic Main Pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators, Relief Valve, Fan Motor and other hydraulic items with genuine and aftermarket quality. Until now, our products have been exported to more than 198 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with our own brand "Belparts", which is highly praised by foreign customers and enjoys a high reputation.

In the future, to practice our company culture “DO BETTER FOR TOMORROW ”, we will strive to learn more professional knowledge about machinery parts and increase our procurement and sales experience to provide customers with better products and services! What’s more, we will devote to develop a more broad business space together base on long-term, friendly, mutually beneficial and win-win business relations.