Industrial rock wool pipe shell

Industrial rock wool pipe shells are specialized rock wool products designed for pipe insulation. They are manufactured primarily from natural minerals such as basalt, which are melted at high temperatures and spun into fibers. After the addition of a binder, the material is rolled into shape using molds and then cured to achieve its final form. Its semi‑tubular design—featuring a single longitudinal slit along the axis—allows for easy, direct installation by slipping it over the pipe, making application quick and convenient.

Product Category:

Rockwool Series

Hotline:

021-56016537

Sales Department Phone:

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Product Description

Product Features

Outstanding fire‑resistance performance: It achieves Class A1 non‑combustibility, with a maximum service temperature of up to 650°C and a thermal‑load‑induced shrinkage temperature of approximately 600°C, effectively slowing the spread of fire.

High‑efficiency thermal insulation: With a thermal conductivity typically ranging from 0.03 to 0.047 W/(m·K), it effectively reduces heat loss in pipelines, contributing to energy savings.

Excellent hydrophobicity and moisture resistance: with a water-repellent rate exceeding 99%, it is well-suited for humid environments, effectively preventing moisture and condensation.

Chemical stability: High acidity coefficient (typically ≥1.8), resulting in low corrosivity toward metal pipelines. Some manufacturers offer low-chloride products (chloride ion content ≤10 ppm) specifically designed to protect stainless steel equipment.

Easy installation: The pipe shell features a unilateral split along the axial direction, allowing it to be easily slipped over the pipe, making it particularly well suited for insulation of small-diameter straight pipes.

Sound absorption and noise reduction: Its porous fibrous structure gives it a certain capacity for sound absorption and noise reduction.

Nominal pipe diameter	Inner diameter (mm)	Thickness (mm)
Nominal pipe diameter	Inner diameter (mm)	30	40	50	60	70	80	90	100	120	150
15	1/2	22	●	●	●
20	3/4	27	●	●	●	●	●	●
25	1	34	●	●	●	●	●	●
32	1-1/4	43	●	●	●	●	●	●	●	●
40	1-1/2	48	●	●	●	●	●	●	●	●
50	2	60	●	●	●	●	●	●	●	●
65	2-1/2	76	●	●	●	●	●	●	●	●
80	3	89	●	●	●	●	●	●	●	●
90	3-1/2	108	●	●	●	●	●	●	●	●
100	4	114	●	●	●	●	●	●	●	●	●
125	5	140	●	●	●	●	●	●	●	●	●	●
150	6	169	●	●	●	●	●	●	●	●	●	●
200	8	219		●	●	●	●	●	●	●	●	●
250	10	273		●	●	●	●	●	●	●	●	●
300	12	325		●	●	●	●	●	●	●	●	●
350	14	356			●	●	●	●	●	●	●	●
375	15	381			●	●	●	●	●	●	●	●
400	16	406			●	●	●	●	●	●	●	●
450	18	456			●	●	●	●	●	●	●	●
475	19	483					●	●	●	●	●	●
500	20	508					●	●	●	●	●	●
550	22	558						●	●	●	●	●
600	24	610						●	●	●	●	●

Product Performance		Density grade (kg/m³)			Unit	Standard
Product Performance		110K	120K	140K	Unit	Standard
Thermal conductivity	50℃	≤0.039	≤0.039	≤0.039	W/(m•K)	GB/T 10295 ASTM C518 ASTM C177
	100℃	≤0.044	≤0.044	≤0.044
	150℃	≤0.053	≤0.050	≤0.052
	200℃	≤0.065	≤0.058	≤0.061
	250℃	≤0.078	≤0.069	≤0.070
	300℃	≤0.094	≤0.080	≤0.078

Product Performance	Density grade (kg/m³)			Unit	Standard
Product Performance	110K	120K	140K	Unit	Standard
Maximum operating temperature	650	650	650	°C	ASTM C411
Maximum operating temperature	Veneer material: 80
Hot-Load Shrinkage Temperature	≥600	≥600	≥600	°C	GB/T 11835
Linear shrinkage rate	≤2	≤2	≤2	%	ASTM C356
Moisture absorption rate	≤0.5	≤0.5	≤0.5	%	GB/T 5480
Hydrophobicity rate	≥99	≥99	≥99	%	GB/T 10299
Chloride ion content*	≤10	≤10	≤10	PPM	ASTM C871
Combustion performance	Non-combustible, Class A1 Smoke density = 5 Flame spread = 0				GB 8624 ASTM E84
Environmental protection	Asbestos-free, and free of CFCs, HCFCs, and HFCs.				ASTM C871
Corrosivity	Non-corrosive			--	ASTM C871