PPR Double clamp
When one double clamp carries a hot and a cold line together, space the clamps for the hot line. Hot water softens PP-R pipe and makes it expand, so it needs shorter spans than cold water. Spacing depends on pipe diameter, temperature and whether the run is horizontal or vertical. Follow the PP-R pipe technical data sheet and the project specification.
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Description and application
The THERMALINO PPR double clamp is a PPR pipe clip that fixes two PP-R pipes side by side to a wall. It keeps the pair evenly spaced and stops the lines from sagging or bending over time. It is available for Ø20, Ø25 and Ø32 pipes in white, grey and green.
The PPR double clamp from the THERMALINO Eternal line is a PPR pipe clip that holds two pipes running parallel to each other, such as a hot and a cold supply line or a heating flow and return. It fixes both pipes to the wall in a single unit, so the pair stays straight and evenly spaced along the whole run. The finished installation looks neat and the clips are quick to fit. The clamp is made of PP-R, the same material family as the pipes it holds. It is designed for THERMALINO PP-R pipes in the Ø20, Ø25 and Ø32 sizes. Choose the clamp that matches the outside diameter of the pipe. It comes in white, grey and green, so it can match the colour of the pipe line. Clips are an essential part of any PP-R installation, not an optional extra. PP-R pipe expands as it warms and softens slightly with hot water. A run without enough support points will droop or bend over time, putting stress on the fused joints. Fit clamps at regular intervals along the run and close to tees, elbows and valves, so the pipes hold their line. The pipes are joined by heat fusion. The clamp then holds the finished line in position on the wall; it does not form part of the joint. Support spacing depends on the pipe diameter, the water temperature and whether the run is horizontal or vertical, and hot lines need shorter spans than cold ones. Follow the PP-R pipe technical data sheet and the project specification for the exact distances.
- Hot and cold water supply lines in houses and apartments
- Flow and return lines of central heating systems in PP-R pipe
- Hotels, hospitals, schools and office buildings
- Plant rooms, boiler connections and manifold areas
- Cooling water and air-conditioning lines in PP-R pipe
- Irrigation and agricultural water lines in PP-R pipe
- Industrial process water lines, subject to the chemical resistance table in the technical data sheet
Technical summary
- SKU
- THL-E-PPR-0019
- Origin
- Made in Türkiye
- HS code
- 3917.40
- Size range
- Ø20 – Ø32
- Material
- PP-R
Questions
- What does a PPR double pipe clip do when hot and cold water lines run side by side along a bathroom or kitchen wall?
- A PPR double pipe clip holds two parallel PP-R pipes to the wall in one clamp, keeping them straight, evenly spaced and stopping them from sagging. The THERMALINO PPR double clamp is made of PP-R. It holds the two lines in a neat, symmetrical pair, so a hot and cold supply or a flow and return can be fixed in one step instead of with two separate clips.
- Which PPR pipe diameters does the THERMALINO double clamp fit when fixing parallel supply lines in a residential installation?
- The THERMALINO PPR double clamp is available for Ø20, Ø25 and Ø32 PP-R pipes. Choose the clamp that matches the outside diameter of the pipe it will hold. It comes in white, grey and green, so it can match the colour of the pipe line.
- How far apart should PPR pipe clips be spaced on horizontal hot water runs compared with cold water runs?
- PPR pipe clips on hot water runs need to be closer together than on cold water runs, because hot water softens the pipe and makes it expand. Spacing also depends on the pipe diameter and on whether the run is horizontal or vertical. When one double clamp carries both a hot and a cold line, use the shorter hot-water spacing. The exact distances are in the PP-R pipe technical data sheet and the project specification.
- How are PPR pipes connected, and does the PPR double clamp form part of the pipe joint?
- PPR pipes are connected by heat fusion of the pipe and fitting, and the PPR double clamp is not part of the joint. The clamp is fitted after the line is assembled and holds the fused pipework in position on the wall. Supporting the run at regular intervals and close to tees, elbows and valves keeps stress off the fused joints.
- Why do PPR hot water pipes start to sag or bend after a few years, and can pipe clips prevent it?
- PPR hot water pipes sag or bend when they have too few supports, because the pipe softens slightly at higher temperatures and expands with every heating cycle. Pipe clips fitted at the right spacing, such as the THERMALINO PPR double clamp, hold the pipes in line and prevent this. If an existing line has already deformed or a joint is leaking, a qualified installer should inspect it and correct the supports.
Range
| Size | White | Grey | Green | Variant codes |
|---|---|---|---|---|
| Ø20✓ White✓ Grey✓ Green | ✓ | ✓ | ✓ | |
| Ø25✓ White✓ Grey✓ Green | ✓ | ✓ | ✓ | |
| Ø32✓ White✓ Grey✓ Green | ✓ | ✓ | ✓ |
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This product is listed under PPR Fittings.
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