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PM-12 Blue-Ring Push-In Equal Bulkhead Union - 12mm Tube OD
One complete brass bulkhead union with two push-in tube ports and assembled release collars.
Applications & specifications · Quick order all packs
Ships from China · 5–7 calendar days preparation. Shipping · Returns

PM-12 Blue-Ring Push-In Equal Bulkhead Union - 12mm Tube OD
Connect two compatible pneumatic tubes through a panel in a straight line. Select the tube outside diameter and the connection mechanism. The bulkhead union is a junction, not a shut-off valve.
Included in one sales unit
1 complete assembled bulkhead-union fitting with its supplied mounting hardware. Two supplied release collars remain assembled. Tubing, the panel, tools and storage boxes are not included.
Original supplier series photographs and views; appearance varies with selected size and finish. Corresponding source dimensions are approximate references. The external thread is for panel mounting.
Model & Reference Codes
| Original shipping SKU | PM-12 |
|---|---|
| Supplier model reference | PM-12 |
| Connection type | Blue-Ring Push-In Bulkhead Union |
| Port layout | Two equal tube ports; straight passage through a panel |
| Tube outside diameter | 12 mm at both ends |
| Mounting | External body thread and supplied mounting hardware; not an equipment-port pipe thread |
| Material / construction | Brass bulkhead body with blue push-in release collars |
| Sales unit | 1 complete assembled bulkhead-union fitting |
| Original mounting thread reference | M22 x 1.0 |
| Additional original PM series B reference | 46.5 mm, approximate supplier series reference; separate source from the mounting-thread table |


Mount, connect and inspect.
Isolate and fully depressurize the line. Match both tube outside diameters and the actual mounting thread. Secure the body through a suitable panel with its mounting hardware, holding the body at the hex. Cut compatible tubing square and remove debris. Push each tube fully into its port and pull gently to check retention. Depressurize before pressing a release collar and withdrawing a tube. Restore air gradually and leak-check both joints. Tubing, the panel and tools are not included.
Pack quantities
Choose 1 / 5 / 20 fittings per pack. Quantity counts packs; physical fittings equal pack size multiplied by the number of packs. Displayed pack prices include the shown savings.
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