Overall length and width are only part of a fit check. Mounting geometry, ports, connectors and removal space can determine whether a component can be installed and serviced.
Separate interface dimensions from envelope dimensions
Identify bolt pattern, locating features, seal positions and port coordinates. For pumps, include shaft and flange details. The outside silhouette can look correct while a critical interface differs.
Check connection specifications
A port diameter in a photograph does not establish its thread or sealing method. Use the designated drawing and connection specification. Record connector orientation and clearance so cables or fittings do not clash with the surrounding machine.
Include installation and removal space
Allow for tools, fasteners and component withdrawal. Consider nearby guards and pipework. Ask the supplier to confirm the drawing revision for the quoted configuration because optional coils, connectors or adapters may change the envelope.
Practical checklist
- Identify all mounting and sealing interfaces.
- Confirm port specification rather than visual similarity.
- Check tool access and removal clearance in the machine.
Discuss your application
Explore related hydraulic products, or send JIUDING your model code and application details. Include the circuit drawing and the operating conditions relevant to the checks above so the required configuration can be reviewed.
Cover image: AI-generated editorial illustration, not a model-specific product drawing or a photograph of a JIUDING facility.

