Pipe conveyor belts

Trellex Flexopipe® conveyor belts for any landscape

Pipe conveyor belts, or tube conveyor belts, are used for enclosed material transport. After loading in the conventionally troughed belt, the belt is formed into a pipe shape with overlapped belt edges. The material is then completely enclosed by the belt. A key advantage of closed pipe conveyor belts is their highly flexible design, which means they can be built to follow the contours of any landscape.

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Spillage-free

Prevents dust or other particles to spread to the environment. Ideal for transporting materials such as municipal waste, ash, limestone or shredded tires.

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Material properties

Made of high-tensile steel cords or textile reinforcements depending on the application, and available in various cover grades.

Special features

Enables a more flexible design than traditional types of conveyor belts.

Expertise

More than a century of experience within the belt business.

Trellex Flexopipe® conveyor belts

Trellex Flexopipe® conveyor belts are spillage-free. They are ideal for transporting materials such as municipal waste, ash, limestone or shredded tires, which might otherwise present an environmental hazard. Reducing the environmental impact and increasing circularity of these materials can contribute, not only to your bottom line, but to your sustainability goals.

As a rule of thumb, the size of lumps can be a third of the pipe diameter (i.e. from 150 mm to 550 mm).

Material properties

Made of high-tensile steel cords or textile reinforcements depending on the application, and available in various cover grades. Your choice of cover grade depends on the intended application. Note that the working life of the belt is also determined by the application.

Enclosed transport of hot material does not allow heat exchange to the atmosphere, therefore material temperatures must be lower than in conventional installations.

Special features

Trellex Flexopipe® belt enables a more flexible design than traditional types of conveyor belts. Various configurations (convex and concave curves) help reduce the number of transfer points leading to smooth treatment of the material and a reduction in installation and operating costs.

This method of conveying contributes to safe, clean and spillage-free material transport, which helps protect the environment and keep maintenance costs low. It also protects your material from external conditions such as snow, rain, wind and dust.

Contact your Metso expert for more information and advice regarding the best choice of belt and cover grade for your operation.

Trellex Flexopipe® selection guide

Characteristics of the system	Requirement for the belt	Flexopipe® solution
Flexible and adaptive conveyor configuration	• Individual belt design for every application • Wide selection of reinforcement types	• Tailor-made belt construction with specially developed reinforcements and rubber compounds • Belt types: Steelcord, Aramid, EP, P
Closed belt	• Sufficient troughability to fit into hexagon • Tight overlapping	• Unique carcass design with tailored rigidity, more flexible at belt edges to ensure tight overlapping
Horizontal and vertical curves	• Sufficiently elastic reinforcement • Stable pipe shape	• Reinforcement with higher lengthwise elasticity for installation with tight curves • Sufficient cross rigidity to maintain pipe cross-section
High dynamic stress	• Fatigue-resistant belt	• Rubber compounds with excellent dynamic properties and improved ozone/UV resistance
Suitable for all bulk materials	• Broad selection of cover grades	• Complete range of cover grades: anti-abrasive, heat-, oil-, grease- and flame-resistant, food (FDA), etc.

Trellex Flexopipe® cover grades

Grade
ISO
DIN
Characteristics (examples)
Applications (examples)
Elastomer
material temperature min.
material temperature max.
material temperature peak
 XPHXWear-resistant, heavy-duty cover for sharp and lumpy material, or extreme drop heightsOre, rock, limestoneNR / BR-40°C50°C
YPLYWear-resistant cover for standard applicationCoal, gravel, sand fertilizer, limestoneSBR-30°C50°C
Y-30DY, WExtremely wear-resistant cover, for fine and abrasive materialCement, gypsum, abrasive sandsNR / BR-30°C50°C
TXTLT, YWear- and heat resistant cover for coarse materialCast iron, cokeSBR-15°C100°C130°C
RETT, CWear-resistant cover with excellent heat resistanceCement, clinker, ashEPM-30°C150°C170°C
GPPGOil- and grease-resistant coverWood chips, grainNBR / SBR-25°C50°C
 SP100S, YFlame-resistant and anti-abrasive acc. to ISO 340Coal, coke, fertilizerSBR-25°C50°C
GAKG, A, KGrease- and flame-resistant cover, white, for food (FDA)Sugar, paper, grain, flour, maltNBR-15°C60°C

Grade	ISO	DIN	Characteristics (examples)	Applications (examples)	Elastomer	material temperature min.	material temperature max.	material temperature peak
XP	H	X	Wear-resistant, heavy-duty cover for sharp and lumpy material, or extreme drop heights	Ore, rock, limestone	NR / BR	-40°C	50°C
YP	L	Y	Wear-resistant cover for standard application	Coal, gravel, sand fertilizer, limestone	SBR	-30°C	50°C
Y-30	D	Y, W	Extremely wear-resistant cover, for fine and abrasive material	Cement, gypsum, abrasive sands	NR / BR	-30°C	50°C
TXT	L	T, Y	Wear- and heat resistant cover for coarse material	Cast iron, coke	SBR	-15°C	100°C	130°C
RET		T, C	Wear-resistant cover with excellent heat resistance	Cement, clinker, ash	EPM	-30°C	150°C	170°C
GPP		G	Oil- and grease-resistant cover	Wood chips, grain	NBR / SBR	-25°C	50°C
SP100		S, Y	Flame-resistant and anti-abrasive acc. to ISO 340	Coal, coke, fertilizer	SBR	-25°C	50°C
GAK		G, A, K	Grease- and flame-resistant cover, white, for food (FDA)	Sugar, paper, grain, flour, malt	NBR	-15°C	60°C