Threaded relief cartridge · Exact datasheet required
RP-14W-20A relief cartridge
A named pilot-operated balanced-poppet relief reference in AOER’s catalogue. Obtain its full order code, exact cavity and operating curves before circuit selection.
The base reference is only the starting point
The current homepage lists RP-14W-20A as “导压操作平衡提动轴型泄压阀”, a pilot-operated balanced-poppet relief reference. Nearby RP-12W-20A, RP-10W-20L and RD references remain separate entries. [1] We do not assign their parameters to this valve.
What has not been established
The reviewed overview lacks the RP-14W-20A pressure/flow curve, exact cavity drawing, setting/adjustment range and seal/order options. The linked product PDF could not be retrieved. No suffix is decoded into a numerical pressure or flow rating, and the photograph cannot establish a variant.
Ask the supplier for the current complete order code and revision-controlled exact-reference sheet. Record the required circuit function and what should happen in the proposed operating conditions, rather than ordering only a visually similar threaded cartridge.
Compare the code, cavity and circuit together
- Order code and curveIdentify adjustment, seals and other offered options. Obtain pressure/flow behaviour, permitted modes and the conditions associated with the curves.
- Cartridge cavity and block drawingMatch all relevant dimensions, port locations and installation requirements to the intended manifold. A common thread alone does not confirm a matching cavity.
- Circuit diagram and dutyReconcile port function, required relief behaviour and operating conditions with the responsible circuit designer. Confirm which party sets and tests the valve.
The same catalogue contains opposite free-flow directions for different check valves and separately named pilot connections. [1] They demonstrate why a function label cannot replace the exact diagram; those check-valve directions are not imported into RP-14W-20A.
Valve-only purchase
Keep receiving-cavity inspection, installation and circuit validation in the buyer/integrator’s defined scope.
Valve plus manifold
Request the released block/circuit revisions, full component schedule, settings and assembled test record. State whether external fittings and accessories are included.
Use general guidance as a question, not a model approval
| Dated AOER general guidance | Exact-order confirmation |
|---|---|
| Mineral-oil basis; generally NBR seals and −30 to +100°C oil-temperature guidance. | Confirm this variant’s fluid/seals, actual working temperature and thermal conditions. |
| Viscosity 7.4–420 cSt unless the datasheet states otherwise. | Return the RP-14W-20A sheet’s viscosity limits for the intended duty. |
| Special FPM available on request. | Identify the complete seal option/code and fluid compatibility; availability is not automatic inclusion. |
These values come from a general 18 March 2020 reference, not a retrieved RP-14W-20A performance sheet. [2] We do not publish them as this product’s confirmed operating properties in structured data.
The cleanliness article stresses clean mating/cavity conditions and model-catalogue installation data. [3] Obtain the exact required cleanliness code, filtration/handling plan and tightening instructions. This page supplies no inferred installation torque or universal adjustment procedure.
Keep the setting and test result with the delivered code
Define factory checks and acceptable leakage/setting/function with pressure, flow, fluid, temperature, measurement method and lot identity. Agree whether the supplier delivers a set valve or the integrator sets it under the controlled equipment procedure. A “zero leakage” phrase without conditions is not an acceptance record.
ISO 4413’s scope includes hydraulic systems and their components through design, modification and installation. [5] Component tests do not alone validate the assembled system; assign the final function/safety review to the responsible designer/integrator.
Can I assume a similar cartridge is a drop-in replacement?
No. Compare full code, cavity, ports, curves, seals and installation requirements against the circuit and block documents.
Does published warranty start when I buy spare stock?
The dated website terms describe 12 months after first installation, capped at 20 months from production date, with original-buyer limits and exclusions. Confirm manufacture date and the current order terms rather than assuming the purchase date controls coverage.
Are seals and other makers’ manifold accessories covered?
The reviewed 2020 statement excludes seals/O-rings and non-AOER accessories and addresses contamination/unauthorized changes. [4] Obtain the current separate terms for the exact supplied package.
Request the exact reference’s missing documents
Sources & review
- AOER RP-14W-20A catalogue label ↗
Current directly read reference and relief-function label; no complete exact-model curve/cavity/options.
2026-10-11 - AOER temperature, viscosity and seal guidance ↗
General guidance dated 18 March 2020 with datasheet override; not all variant ratings.
2026-10-11 - AOER cleanliness guidance ↗
Dated supplier guidance links installation/cleanliness to catalogue requirements; no exact-model cleanliness code established.
2026-10-11 - AOER quality and warranty statement ↗
Dated coverage limits, exclusions and user selection/validation responsibility; confirm terms in current order.
2026-10-11 - ISO 4413 publisher scope ↗
System/component hydraulic design and safety scope; no exact-valve or integrated-system approval.
2026-10-11
Specifications come from the manufacturer’s published information and the sources above; buying advice is written by CivilEquip with AI assistance. Ask the manufacturer to confirm the data for your configuration. Editorial policy · Report a correction.