HENGSEN Standard-Wall Copper Straight Couplings | 6.35–133 mm
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HENGSEN Standard-Wall Copper Straight Couplings | 6.35–133 mm
Description
Product Overview
HENGSEN Standard-Wall Copper Straight Couplings join two compatible copper tubes of the same size in a straight line. Their equal-size socket connections are designed for refrigeration and air-conditioning pipework where an inline connection is required.
This range includes 29 size options from 6.35 to 133 mm, with wall thicknesses from 0.8 to 3.0 mm depending on the selected size. Each variant pairs a listed connection size with its corresponding wall thickness for straightforward selection during installation, pipe extensions and replacement work.
Key Features
- Straight inline connection: Joins two aligned copper tube ends.
- Equal-size sockets: The same listed connection size at both ends.
- Copper construction: For connection to compatible copper tubing.
- 29 size options: Sizes from 6.35 to 133 mm in one product range.
- Clearly specified wall thickness: Each variant identifies its size and corresponding wall thickness.
Technical Specifications
| Item | Specification |
|---|---|
| Brand | HENGSEN |
| Product Type | Copper Straight Coupling |
| Series | Standard Wall |
| Material | Copper |
| Fitting Configuration | Equal Straight Coupling |
| Connection Style | Socket × Socket |
| Listed Connection Size Range | 6.35–133 mm |
| Wall Thickness Range | 0.8–3.0 mm, depending on size |
| Available Variants | 29 |
| Specification Format | Connection Size × Wall Thickness |
Available Sizes
| Size × Wall Thickness | Listed Connection Size (mm) | Wall Thickness (mm) |
|---|---|---|
| 6.35 × 0.8 mm | 6.35 | 0.8 |
| 8 × 0.9 mm | 8 | 0.9 |
| 10 × 0.9 mm | 10 | 0.9 |
| 12 × 0.9 mm | 12 | 0.9 |
| 12.7 × 0.9 mm | 12.7 | 0.9 |
| 15.88 × 0.9 mm | 15.88 | 0.9 |
| 16 × 0.9 mm | 16 | 0.9 |
| 19 × 0.9 mm | 19 | 0.9 |
| 22 × 1.0 mm | 22 | 1.0 |
| 22.23 × 1.0 mm | 22.23 | 1.0 |
| 25 × 1.0 mm | 25 | 1.0 |
| 25.4 × 1.0 mm | 25.4 | 1.0 |
| 28 × 1.0 mm | 28 | 1.0 |
| 28.58 × 1.0 mm | 28.58 | 1.0 |
| 32 × 1.3 mm | 32 | 1.3 |
| 35 × 1.3 mm | 35 | 1.3 |
| 38 × 1.4 mm | 38 | 1.4 |
| 41.28 × 1.4 mm | 41.28 | 1.4 |
| 42 × 1.4 mm | 42 | 1.4 |
| 45 × 1.5 mm | 45 | 1.5 |
| 50 × 1.7 mm | 50 | 1.7 |
| 51 × 1.7 mm | 51 | 1.7 |
| 54 × 1.8 mm | 54 | 1.8 |
| 67 × 1.8 mm | 67 | 1.8 |
| 76 × 1.8 mm | 76 | 1.8 |
| 80 × 2.2 mm | 80 | 2.2 |
| 89 × 2.3 mm | 89 | 2.3 |
| 108 × 2.4 mm | 108 | 2.4 |
| 133 × 3.0 mm | 133 | 3.0 |
All measurements are in millimeters. The first number identifies the listed connection size, and the second identifies the wall thickness. These values do not indicate the coupling’s overall length or socket depth.
Applications
- Refrigeration and air-conditioning copper pipework.
- Cold room and commercial refrigeration installations.
- Straight connections between copper tubes of the same size.
- Pipe extensions and replacement of matching inline fittings.
Choosing the Correct Coupling
Select the exact connection size and wall thickness required by your piping specification. Sizes such as 15.88 and 16 mm, 22 and 22.23 mm, 41.28 and 42 mm, or 50 and 51 mm are separate variants and should not be treated as interchangeable without checking the fit.
Confirm socket fit, insertion depth and overall length for the selected coupling, especially when working between fixed pipe ends. This standard-wall range uses different wall thicknesses according to size; refer to the table for the individual specification.
Installation
Have a qualified installer confirm the jointing method and suitability for the system’s pressure, temperature and refrigerant. Prepare and join the tubing according to the installation procedure, then test the completed pipework before commissioning.
Request a Quote
Send your required size × wall thickness, quantity and delivery destination. Include any overall length, socket depth or installation requirements so the correct coupling can be checked.
| Size × Wall Thickness |
6.35 × 0.8 mm, 8 × 0.9 mm, 10 × 0.9 mm, 12 × 0.9 mm, 12.7 × 0.9 mm, 15.88 × 0.9 mm, 16 × 0.9 mm, 19 × 0.9 mm, 22 × 1.0 mm, 22.23 × 1.0 mm, 25 × 1.0 mm, 25.4 × 1.0 mm, 28 × 1.0 mm, 28.58 × 1.0 mm, 32 × 1.3 mm, 35 × 1.3 mm, 38 × 1.4 mm, 41.28 × 1.4 mm, 42 × 1.4 mm, 45 × 1.5 mm, 50 × 1.7 mm, 51 × 1.7 mm, 54 × 1.8 mm, 67 × 1.8 mm, 76 × 1.8 mm, 80 × 2.2 mm, 89 × 2.3 mm, 108 × 2.4 mm, 133 × 3.0 mm |
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