Internal passages are precision-machined channels within a manifold body that direct hydraulic or pneumatic fluid flow between ports and valves.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Tolerance | ±0.1 mm on diameter, ±0.5° on intersection angles | |
| Burr Allowance | Max 0.1 mm | |
| Surface Finish | Ra 0.8-3.2 μm | |
| Pressure Rating | Up to 350 bar (hydraulic), 10 bar (pneumatic) | |
| Passage Diameter | 3-25 mm (common range) | |
| Intersection Geometry | Drilled, cross-drilled, or milled channels |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
The main structural housing of a vacuum manifold that provides the framework for connecting and distributing vacuum lines.
A solid block with multiple internal passages that distributes fluid or air to multiple control valves in a centralized system.
The main structural component of an inert gas supply manifold that houses internal passages and connection ports.
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Manufacturer profiles associated with Internal Passages.
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To direct hydraulic or pneumatic fluid between ports, valves, and actuators within a single compact block, eliminating external piping for internal connections and reducing potential leak points.
They are precision-machined using CNC drilling, milling, or gun-drilling processes, followed by deburring and surface finishing to ensure smooth flow and prevent contamination.
Key factors include fluid type (hydraulic/pneumatic), operating pressure, flow rate requirements, pressure drop limits, space constraints, and compatibility with standard porting patterns (e.g., CETOP, NFPA).
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