Your Whole New Supply Chain For Heavy-Duty Parts
Whatsapp：
+86 18915027366
Phone：
+86 18915027366
12V-7/8-14 proportional cartridge
OE-Equivalent Replacement Quality
IATF 16949 / ISO 9001 / CE / RoHS
50 pcs
7 - 15 Days
12 Months
Hydraulic manifolds using the matching 7/8-14 proportional cartridge and four port circuit
Confirm 12v, connector, 7/8-14 unf-2a, seals and hydraulic circuit before installation.
| Quantity: | |
|---|---|
12V-7/8-14 proportional cartridge is a 12V proportional hydraulic solenoid valve for Hydraulic manifolds using the matching 7/8-14 proportional cartridge and four port circuit. Buyers should confirm the complete old marking, electrical version, connector, 7/8-14 unf-2a and hydraulic function before approving replacement stock.
Specification | Value |
|---|---|
Product Type | Proportional Hydraulic Solenoid Valve |
Primary Reference | 12V-7/8-14 proportional cartridge |
Cross References | No verified public OE number assigned |
Electrical Version | 12V |
Working Pressure Reference | 22 bar |
Interface | 7/8-14 UNF-2A |
Application Scope | Hydraulic manifolds using the matching 7/8-14 proportional cartridge and four port circuit |
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 | Use the complete old valve marking and sample |
Electrical | 12V; verify at the loaded connector during the actual command |
Mechanical | Compare 7/8-14 unf-2a, cartridge length, seals and installed clearance |
Hydraulic | Confirm normal state, energized state and manifold port relationship |
Machine Evidence | Hydraulic manifolds using the matching 7/8-14 proportional cartridge and four port circuit |
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 maintenance planner builds critical spare stock, keep the verified reference, measurements and test result in the service record. Approve 12V-7/8-14 proportional cartridge from the complete old valve marking, 12v electrical version, connector keying, 7/8-14 unf-2a, 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 coil replacement is considered without changing the cartridge, 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 service team tests the de-energized state, keep the verified reference, measurements and test result in the service record. Measure supply and ground at the loaded connector, then check coil resistance and verify that the controller is actually issuing the command. If electrical input is correct, inspect oil cleanliness, filter condition, cartridge movement and manifold contamination. Separate electrical command from hydraulic response before replacing another valve, otherwise a harness or blocked pilot passage may be missed.
During a warm oil response complaint is diagnosed, keep the verified reference, measurements and test result in the service record. Provide the complete old label, machine model and serial number, confirmed voltage, connector face photo, cartridge or flange measurements, hydraulic function, required quantity and destination. For mixed fleets, separate each electrical and suffix version on the inquiry. This evidence allows a sample approval plan and prevents similar looking proportional hydraulic solenoid valve variants from being combined in one bulk order.
During a coil replacement is considered without changing the cartridge, 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 Universal harness revisions are used in the same fleet.
During a dealer parts counter checks an old sample, keep the verified reference, measurements and test result in the service record. A controlled sample review should confirm physical fit, connector engagement, coil current, leakage and the machine response in both normal and energized states. For this proportional hydraulic solenoid valve, record warm oil behavior and response time as well as cold start operation. Retain the approved label photos and measurements so the production lot can be checked against the same acceptance record.
During a repeat coil heating case is investigated, keep the verified reference, measurements and test result in the service record. Keep ports capped, seals protected and connector faces free from moisture or impact. Separate 12v and suffix variants with readable carton labels so warehouse picking cannot mix them. Store the valves in a clean, dry area away from welding dust and corrosive chemicals, and retain lot traceability to the approved sample and incoming inspection record.
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.
