
Cooling Uni-Joint Plugs with Flexible Tube Option
Cooling Uni-Joint Plugs with flexible tube option deliver reliable thermal management for cooling circuits, maintaining stable operation in hot environments up to 80°C. The uni-joint design helps routing stay compact while keeping flow connections secure.
- Flexible tube option improves hose routing and reduces strain during installation
- Heat resistant construction supports cooling lines exposed to up to 80°C
- Tapered thread PT 1/4 or PT 1/8 helps create a tight leak-resistant connection
- Compatible with cooling water systems for industrial equipment and molds
Specifications
8 configurations available
| Dimension L (mm) | Tapered thread R (PT) | type |
|---|---|---|
| 140 | 1/8 | - |
| 140 | 1/4 | - |
| 50 | 1/8 | - |
| 65 | 1/8 | - |
| 100 | 1/8 | - |
| 50 | 1/4 | - |
| 65 | 1/4 | - |
| 100 | 1/4 | - |
Product Guide
Application Scenarios+
These cooling uni-joint plugs with a flexible tube option are used inside injection mold cooling circuits to manage temperature in sections where straight fittings cannot achieve the required routing angle. They are especially suited for automotive connector and bracket molds, where compact layouts around steel cores can create clearance conflicts; the uni-joint geometry helps keep flow connections secure while improving routing flexibility.
They also fit well in hot-runner and high-cycle industrial molds where cooling lines may be exposed to elevated ambient conditions. The heat-resistant construction supports use in environments up to 80°C, helping reduce overheating risk at the circuit interface.
For medical device housing tooling, stable cooling is critical to dimensional control; use the tapered thread connection (PT 1/4 or PT 1/8) to form a tight, leak-resistant seal with compatible cooling water lines and hoses.
- Flexible tube option reduces strain during installation and eases hose routing
- Tapered PT threads support secure, leak-resistant connections
Material & Process Details+
The provided specifications focus on thermal capability and connection interfaces; no specific steel grade, hardness (HRC), or heat treatment state is included in the product data. Therefore, material properties such as wear resistance, toughness trade-offs, and heat treatment (e.g., quench & temper, nitriding) cannot be stated for this variant without additional documentation.
What can be confirmed from the datasheet summary is heat resistance: the flexible tube option is rated for cooling circuit fitting use in environments up to 80°C. This supports reliable cooling performance where thermal exposure is elevated.
- Thermal rating: suitable for up to 80°C cooling circuit exposure
- Connection interface: tapered PT thread (PT 1/8 or 1/4) designed for tight, leak-resistant sealing
If you require metallurgical details (grade, HRC, treatment, corrosion resistance), request the material certificate or drawing revision for the specific SKU configuration.
Sizing & Selection Guide+
Select the correct plug length L (mm) based on the routing geometry and the distance between the mold’s cooling channel interface and the hose/pipe termination point. Available lengths are 50, 65, 100, and 140 mm—choose the shortest length that allows the required uni-joint clearance while avoiding excessive hose bending.
Then match the tapered thread size to your cooling circuit components. This plug is available with tapered thread PT (R) of 1/8 or 1/4; use the same PT designation as the mating fitting to ensure proper thread engagement and sealing behavior.
- Step 1: measure the required installation span and select L from 50–140 mm
- Step 2: confirm mating part is PT 1/8 or PT 1/4
- Step 3: account for hose routing—flexible tube option helps reduce strain, but avoid tight radii that may degrade long-term flexibility
Tolerance and fit details beyond PT size are not provided in the supplied parameters, so verify sealing requirements against your internal assembly standard and the mating component specification.
Frequently Asked Questions
Which tapered thread size (PT 1/8 or PT 1/4) should I select for my cooling circuit fitting?+
Choose the tapered thread size based on the mating connector’s specification: this plug is available with PT (R) 1/8 or PT (R) 1/4. Matching PT size is essential for correct thread engagement and a leak-resistant seal.
If your mold cooling circuit uses a standard PT fitting, select the same PT designation to avoid mismatch during assembly.
How do I choose the correct length L for the uni-joint plug in a compact mold layout?+
Select Dimension L (mm) from the available options: 50, 65, 100, or 140. Use the shortest length that provides the required clearance for the uni-joint routing without forcing excessive hose bend.
The flexible tube option can help reduce installation strain, but overall routing geometry still controls the usable length.
Is this fitting suitable for cooling circuits exposed to elevated temperatures?+
Yes. The flexible tube option is rated for cooling circuit fittings in environments up to 80°C.
This rating is relevant when the interface area is near hot tooling zones or high-ambient operation where overheating risk is a concern.
What advantages does the flexible tube option provide compared with a rigid routing approach?+
The flexible tube option is intended to improve hose routing and reduce strain during installation in constrained spaces.
In practice, this helps maintain connection security when the uni-joint routing is needed to achieve compact layout around cores/cavities.
Can I use these uni-joint plugs with cooling water systems in molds and industrial equipment?+
They are described as compatible with cooling water systems for industrial equipment and molds.
For sealing, ensure you select the correct PT thread size (PT 1/8 or PT 1/4) matching the mating cooling line fittings.
Need Custom Specifications?
Our engineering team can help with custom configurations, material selection, and volume pricing.




