Product features
- Panel-mounted tube-to-tube union
- Equal tube sizes at both ends
- Bulkhead mounting thread in the drawing
EOAT & Factory Automation ComponentsSelection · Sourcing · RFQ Support
Pneumatics
APM Bulkhead Union Fittings
APM bulkhead unions provide a tube-to-tube connection through a panel. Compare the tube size, bulkhead mounting thread and installation dimensions.
Series
APM
Listed models
12
Configuration
Push-in connection
Selection
Catalog order codes
Model, PN and application context confirmed during inquiry.
Overview
Understand the APM product family
APM bulkhead unions provide a tube-to-tube connection through a panel. Compare the tube size, bulkhead mounting thread and installation dimensions.
Selection approach
Match the two tube outside diameters and the panel installation. The R column identifies the bulkhead mounting thread, not a threaded air port.
All values shown below are traceable to the reviewed Catalog source. Missing information is not inferred.
Applications
Pneumatic tube connectionsAir-line routingVacuum-line connections
Product Selection Tool
Compare APM Models
Match the two tube outside diameters and the panel installation. The R column identifies the bulkhead mounting thread, not a threaded air port.
| Model | PN | D | R | S | L | X | Status |
|---|---|---|---|---|---|---|---|
| APM04 | Confirm by material / quotation | 4 mm | M12×1 | 14 | 31.8 | 9.9 | Confirmed |
| APM06 | Confirm by material / quotation | 6 mm | M14×1 | 17 | 33 | 11.9 | Confirmed |
| APM08 | Confirm by material / quotation | 8 mm | M16×1 | 19 | 37.5 | 13.9 | Confirmed |
| APM10 | Confirm by material / quotation | 10 mm | M20×1 | 24 | 41.3 | 16.9 | Confirmed |
| APM12 | Confirm by material / quotation | 12 mm | M22×1 | 26 | 46.4 | 19.9 | Confirmed |
| APM14 | Confirm by material / quotation | 14 mm | M24×1 | 27 | 46.5 | 21.8 | Confirmed |
| APM16 | Confirm by material / quotation | 16 mm | M26×1 | 29 | 49 | 23.8 | Confirmed |
| APM5/32 | Confirm by material / quotation | 5/32 in | M12×1 | 14 | 31.8 | 9.9 | Confirmed |
| APM1/4 | Confirm by material / quotation | 1/4 in | M14×1 | 17 | 33.5 | 11.9 | Confirmed |
| APM5/16 | Confirm by material / quotation | 5/16 in | M16×1 | 19 | 37.5 | 13.9 | Confirmed |
| APM3/8 | Confirm by material / quotation | 3/8 in | M20×1 | 24 | 41.3 | 16.9 | Confirmed |
| APM1/2 | Confirm by material / quotation | 1/2 in | M22×1 | 26 | 46.4 | 19.9 | Confirmed |
Continue to Engineering Reference to verify drawings, dimensions and technical notes before quotation.
Engineering Reference
Technical Data & Dimensions
Review the engineering sheets for the selected model. Confirm dimensions, connections and the applicable configuration before quotation.
Dimensions & Drawings
Model / PN Reference
Technical Notes
Applicability
Pneumatic Fittings 2025, printed page 21: APM04, APM06, APM08, APM10, APM12, APM14, APM16, APM5/32, APM1/4, APM5/16, APM3/8, APM1/2
Pneumatic Fittings 2025, printed page 01: APM04, APM06, APM08, APM10, APM12, APM14, APM16, APM5/32, APM1/4, APM5/16, APM3/8, APM1/2
Technical specifications
| Fluid | Air and vacuum |
|---|---|
| Operating pressure | 0–1.0 MPa |
| Negative pressure | -100 kPa |
| Catalog maximum pressure | 1.5 MPa; separate from the operating range, not a burst-pressure rating |
| Operating temperature | 0–60°C |
| Applicable tube | Polyurethane and nylon |
| Materials reference | The family structure drawing identifies PBT, brass, NBR, POM, zinc and SUS at individual components; use the drawing for component locations. |
APM — Models & Engineering Reference
Listed models, selection data and applicable dimensional reference. · Pneumatic Fittings 2025, printed page 21
High-resolution web preview · Pneumatic Fittings 2025, printed page 21
Plastic Push-in Fittings — Operating Conditions & Structure
Common family reference; apply the product-specific notes and model tables. · Pneumatic Fittings 2025, printed page 01
High-resolution web preview · Pneumatic Fittings 2025, printed page 01
Technical confirmation notes
- Operating pressure and the catalog maximum pressure are separate values. Choose tubing and connections for the actual operating conditions.
- Tube outside diameters are marked in mm or inches. Interpret the remaining dimension symbols using the engineering drawing; an inch tube size does not make every drawing dimension an inch value.
- The R column is the bulkhead mounting thread. It is not a threaded fluid port.
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