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KDRDE5K-31/30C50-111-T
KDRDE5K-31/30C50-111
OE-Equivalent Replacement Quality
IATF 16949 / ISO 9001 / CE / RoHS
50 pcs
7 - 15 Days
12 Months
KDRDE5K-31/30C50-111
Kobelco excavator hydraulic pump control using KDRDE5K-31/30C50-111
Confirm 12v, connector, flange mounted kawasaki cartridge, seals and hydraulic circuit before installation.
| Quantity: | |
|---|---|
KDRDE5K-31/30C50-111-T is a 12V hydraulic pump solenoid valve for Kobelco excavator hydraulic pump control using KDRDE5K-31/30C50-111. Buyers should confirm the complete old marking, electrical version, connector, flange mounted kawasaki cartridge and hydraulic function before approving replacement stock.
Specification | Value |
|---|---|
Product Type | Hydraulic Pump Solenoid Valve |
Primary Reference | KDRDE5K-31/30C50-111-T |
Cross References | KDRDE5K-31/30C50-111 |
Electrical Version | 12V |
Working Pressure Reference | 41 bar |
Interface | Flange mounted Kawasaki cartridge |
Application Scope | Kobelco excavator hydraulic pump control using KDRDE5K-31/30C50-111 |
MOQ | 50 pcs |
Delivery Time | 7 to 15 Days |
Warranty | 12 Months |
Use the original catalog dimensional reference and hydraulic symbol to compare the valve with the removed component and the machine schematic before purchase approval.
Complete every control point below before a sample or bulk order is released.
Approval Point | Buyer Review |
|---|---|
Reference | KDRDE5K-31/30C50-111 |
Electrical | 12V; verify at the loaded connector during the actual command |
Mechanical | Compare flange mounted kawasaki cartridge, cartridge length, seals and installed clearance |
Hydraulic | Confirm normal state, energized state and manifold port relationship |
Machine Evidence | Kobelco excavator hydraulic pump control using KDRDE5K-31/30C50-111 |
Separate electrical command, cartridge movement and machine response so the actual wiring or hydraulic fault is not hidden by a parts replacement.
Observed Condition | Recommended Check |
|---|---|
No movement | Check loaded connector voltage, ground, controller command and coil resistance. |
Slow response | Inspect oil cleanliness, filter condition, viscosity and cartridge movement. |
Reversed response | Stop operation and compare normal and energized port logic with the original valve. |
External leakage | Inspect seals, cartridge surface, manifold bore and correct seating depth. |
Repeated heating | Confirm voltage, duty cycle, connector resistance and full magnetic movement. |
During a connector harness revision is compared, keep the verified reference, measurements and test result in the service record. Approve KDRDE5K-31/30C50-111-T from the complete old valve marking, 12v electrical version, connector keying, flange mounted kawasaki cartridge, sealing lands and normal hydraulic state. A shared equipment model does not prove interchangeability because pump and manifold revisions can change during production. Send the machine model, serial number and clear removed part photos with the inquiry.
During a replacement warranty claim is reviewed, keep the verified reference, measurements and test result in the service record. Read the coil label first and measure voltage at the connector while the real machine command is active. The working reference for this page is 12V. Do not infer voltage only from battery count because converters, harness changes and mixed voltage fleets can create misleading assumptions. Record the verified value on the purchase order and incoming inspection label.
During a bulk order moves from sample to production, keep the verified reference, measurements and test result in the service record. Check the printed reference and voltage against the purchase order, then sample connector keying, overall length, mounting interface, seal count and coil resistance. Keep voltage or suffix variants physically separated and traceable. For the first production lot, compare one unit with the approved old component before releasing the remaining quantity to warehouse stock or field service.
During contaminated hydraulic oil has been discovered, keep the verified reference, measurements and test result in the service record. Compare the connector face, key position, pin count, latch direction and cable exit with the removed component. Also check whether suppression is built into the coil because this can affect controller diagnostics. Photograph the connector straight on beside a ruler and include the terminal condition in the RFQ, especially when several Kobelco harness revisions are used in the same fleet.
During a service kit is packed for remote repair, keep the verified reference, measurements and test result in the service record. Fine debris can restrict the moving element, damage sealing lands or block a pilot passage even when the coil energizes normally. Review the equipment filtration requirement, inspect the removed valve for particles and flush the affected circuit when contamination is found. Replacing KDRDE5K-31/30C50-111-T without correcting dirty oil can reproduce slow response, sticking or repeated coil stress soon after installation.
During cold start commissioning is completed, keep the verified reference, measurements and test result in the service record. Treat every suffix as an engineering identifier until its meaning is proven. A suffix can change voltage, connector, spring calibration, spool geometry or mounting details while the base model remains similar. Keep the complete old marking on the quotation and do not shorten KDRDE5K-31/30C50-111 in purchasing records. Accept a cross reference only after dimensional, electrical and hydraulic checks agree.
During a removed label is partly unreadable, keep the verified reference, measurements and test result in the service record. Measure voltage across the coil while the controller commands the valve, then measure the positive and ground side drops separately. A static open circuit reading can look normal while a corroded terminal collapses under load. Compare the result with the confirmed 12v requirement and repair excessive resistance before judging the hydraulic pump solenoid valve itself as defective.
Send the complete old valve marking, confirmed voltage, machine model and serial number, connector photos, interface dimensions and required quantity for a fitment focused B2B quotation.
