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ROCKWOOL ProRox PS 960 SA 120 kg/m³ · 50 mm · bore 34 mm
- Thickness (mm)
- 50
- Length (mm)
- 1200
- Pipe size
- bore 34 mm
- Facing (foil or unfaced)
Sound coming in or going out (sound insulation)
Echoey rooms (sound absorption)

Split-and-hinged stone-wool pipe section for high-temperature industrial pipework under mechanical load, up to 650 °C.
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See all models and sizesManufacturer documentsTechnical specifications
Pre-formed stone wool pipe sections with WR-Tech · 120 / 150 kg/m³ · up to 650 °C
ProRox PS 960SA is a mandrel-wound stone-wool pipe section made with the water-repellent WR-Tech binder to reduce the risk of corrosion under insulation (CUI). Supplied split and hinged for snap-on fitting, it is used for thermal and acoustic insulation of industrial pipework. Maximum use temperature is 650 °C, reaction to fire is Euroclass A1, and it meets ASTM C795 for use over stainless steel.
Stone wool (rock wool) · Facing: Unfaced (reinforced aluminium foil facing on request) · Pipe section
Thickness 50–100 mm — Choose a size
Insulation thickness must be designed for pipe temperature, target surface temperature and heat loss. High-temperature work should be designed and installed by specialists, and the sections must be finished with metal cladding.
ProRox PS 960 SA — 200 329TH-08/25 V4 (EN) · ProRox PS 970 SA — 200 334TH-08/25 V3 (EN)
Technical data from the manufacturer's documents ROCKWOOL · Checked 13 Oct 2026
All values come from the manufacturer's documents, with conditions and test standards. Values the documents do not state are not shown.
| Property | Value | Conditions / standard | Source |
|---|---|---|---|
| Maximum service temperature | 650 °C | both PS 960 SA and PS 970 SA · ASTM C447 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), ProRox PS 970 SA — 200 334TH-08/25 V3 (EN), p. 1 |
| Density | 120–150 kg/m³ | nominal density · ASTM C302 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), ProRox PS 970 SA — 200 334TH-08/25 V3 (EN), p. 1 |
| Thermal conductivity (λ) | 0.037–0.038 W/m·K | at 50 °C mean · ASTM C335 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), ProRox PS 970 SA — 200 334TH-08/25 V3 (EN), p. 1 |
| Thermal conductivity (λ) PS 960 SA | 0.037 / 0.042 / 0.048 / 0.055 / 0.063 / 0.072 / 0.083 W/m·K | at mean temperature 50 / 100 / 150 / 200 / 250 / 300 / 350 °C · ASTM C335 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), p. 1 |
| Thermal conductivity (λ) PS 970 SA | 0.038 / 0.043 / 0.048 / 0.055 / 0.063 / 0.072 / 0.082 W/m·K | at mean temperature 50 / 100 / 150 / 200 / 250 / 300 / 350 °C · ASTM C335 | ProRox PS 970 SA — 200 334TH-08/25 V3 (EN), p. 1 |
| Reaction to fire | Euroclass A1 · ASTM E84 passed (flame spread / smoke development) | EN 13501-1 / ASTM E84 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), ProRox PS 970 SA — 200 334TH-08/25 V3 (EN), p. 1 |
| Use over stainless steel | Meets ASTM C795 · leachable chloride ≤ 10 ppm | ASTM C692 / C871 / C795 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), ProRox PS 970 SA — 200 334TH-08/25 V3 (EN), p. 1 |
| Water absorption | ≤ 0.2 kg/m² | also after 24 h pre-heating at 250 °C · EN 13472 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), ProRox PS 970 SA — 200 334TH-08/25 V3 (EN), p. 1 |
| Vapour sorption | less than 1% by weight | ASTM C1104 | ProRox PS 960 SA — 200 329TH-08/25 V4 (EN), p. 1 |
| Model | Thickness (mm) | Length (mm) | Pipe size | Note |
|---|---|---|---|---|
| PS 960 SA | 50 | 1200 | bore 34 mm | — |
| PS 960 SA | 50 | 1200 | bore 90 mm | — |
| PS 960 SA | 100 | 1200 | bore 115 mm | — |
| PS 960 SA | 100 | 1200 | bore 275 mm | — |
| PS 970 SA | 50 | 1200 | bore 115 mm | 3 pcs / carton |
| PS 970 SA | 50 | 1200 | bore 275 mm | — |
| PS 970 SA | 50 | 1200 | bore 326 mm | — |
| PS 970 SA | 50 | 1200 | bore 358 mm | — |
| PS 970 SA | 100 | 1200 | bore 221 mm | — |
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