HEXAGON & TETRAGON HOSE
SARO wear-resistant flexible hoses for pneumatic conveying
HEXAGON Hose and TETRAGON Hose are flexible anti-wear solutions developed by SARO for the pneumatic conveying of highly abrasive materials, both in pressure and suction lines. These systems combine the flexibility of rubber hoses with the high wear resistance of SARCER ceramic, delivering high performance even in the most severe operating conditions. In the pneumatic conveying of bulk and powdery materials, flexible hoses are among the points most exposed to erosion and abrasion, especially in the presence of:
- high conveying speeds
- changes of direction
- vibrations and dynamic movements
- highly aggressive and abrasive materials
The HEXAGON & TETRAGON Hose solutions are designed to ensure:
- high erosion resistance
- long service life
- reduced maintenance
- continuous operation
- installation flexibility even in complex geometries
Applications include in particular the pneumatic conveying of:
- dry cement
- pulverised coal
- ash and industrial powders
- solid recovered fuels (SRF/RDF)
- abrasive mineral materials
- products from waste/material recovery processes
These systems are used in:
- cement plants
- steelworks
- waste-to-energy plants
- quarries and mining plants
- waste/material recovery and treatment plants
- energy and process industries

HEXAGON & TETRAGON HOSE provide the following product characteristics:
PHYSICAL CHARACTERISTICS
PROPERTY | VALUE |
Rubber | Anti-wear antistatic SBR/NBR compound, black |
Ceramic (Hexagon Hose) | Hexagonal mosaic with honeycomb layout |
Ceramic (Tetragon Hose) | Square mosaic |
External Reinforcement | Steel spiral with copper wire mesh for line electrical continuity (if required) |
Operating Pressure | 10 bar |
Burst Pressure | 30 bar |
Operating Temperature | -30/+70 °C |
DIMENSIONAL TOLERANCES | |
Øi ≤38 mm | ±1 mm |
Øi ≥42 mm | ±1.8 mm |
L | ±1% L |
Advantages | Excellent Wear ResistanceUp to 20 times longer lifespan compared to standard anti-abrasion rubber hosesProven performance on a wide range of materialsReduces line clogging |
STANDARD PRODUCT DIMENSIONS
Internal Diameter | Outer Diameter | Weight (kg/m) | Min. Bending Radius | Ceramic thickness |
mm | mm | kg/m | mm | mm |
| | HEXAGON HOSE | | |
20 | 39.2 | 2.07 | 240 | 4 |
25 | 49 | 2.59 | 300 | 4 |
32 | 56 | 3.07 | 384 | 4 |
38 | 62 | 3.50 | 456 | 4 |
42 | 66 | 3.75 | 504 | 4 |
48 | 72 | 4.17 | 576 | 4 |
50 | 74 | 4.31 | 600 | 4 |
60 | 86 | 5.27 | 720 | 4 |
63.5 | 90 | 5.54 | 762 | 4 |
70 | 100 | 6 | 840 | 4 |
75 | 105 | 6.35 | 900 | 6 |
80 | 110 | 6.93 | 960 | 6 |
100 | 132 | 8.56 | 1200 | 6 |
114 | 149 | 13.24 | 1368 | 6 |
125 | 158 | 14.42 | 1500 | 6 |
150 | 188 | 19.42 | 1800 | 6 |
200 | 240 | 27.68 | 2400 | 6 |
250 | 300 | 30.98 | 3000 | 6 |
| | TETRAGON HOSE | | |
20 | 44 | 1.9 | 200 | 3 |
25 | 49 | 2.38 | 250 | 3 |
32 | 56 | 2.82 | 320 | 3 |
38 | 62 | 3.2 | 380 | 3 |
42 | 66 | 3.45 | 420 | 3 |
48 | 72 | 3.83 | 480 | 3 |
50 | 74 | 3.96 | 500 | 3 |
60 | 86 | 4.84 | 600 | 3 |
63.5 | 90 | 5.09 | 635 | 3 |
70 | 100 | 5.50 | 700 | 3 |
75 | 105 | 5.50 | 750 | 3 |
80 | 110 | 5.55 | 800 | 3 |
100 | 132 | 6.85 | 1000 | 3 |
114 | 147 | 10.60 | 1150 | 3 |
125 | 158 | 11.54 | 1250 | 3 |
150 | 188 | 15.54 | 1500 | 3 |
200 | 240 | 22.14 | 2000 | 3 |
250 | 300 | 24.78 | 2500 | 3 |
HEXAGON Hose
HEXAGON Hose is the high-performance standard solution developed by SARO for the pneumatic conveying of highly abrasive materials.
The structure combines:
- the flexibility of technical rubber
- a wear-resistant inner lining in SARCER ceramic
- high resistance to continuous erosion and abrasion
HEXAGON Hose is designed for:
- significantly reduce maintenance problems
- extend the service life of pneumatic lines
- ensure operating continuity even in severe conditions
- maintain high conveying performance over time
TETRAGON Hose
TETRAGON Hose was developed for applications requiring greater operational flexibility while maintaining the same wear resistance as the HEXAGON Hose line.
The system configuration allows:
- greater adaptability to plant movements
- better vibration management
- high resistance to wear and erosion
- excellent performance in highly aggressive pneumatic conveying
TETRAGON Hose is mainly used:
- in steelworks
- in pulverised coal conveying systems
- in pneumatic lines subject to movement and dynamic stress
Configurations and customisation
HEXAGON & TETRAGON Hoses can be supplied in different configurations:
- smooth surface
- corrugated version
- glass-fibre fabric covering
- corrugated configurations with fibre reinforcement
The hoses can also be:
- fitted with different connection systems
- supplied cut to size according to customer specifications
- produced with special compounds for high temperatures or chemically aggressive environments
Standard availability:
- 20 m from DN20 to DN63.5
- 10 m from DN70 to DN100
- 6 m above DN100
HEXAGON & TETRAGON Hose solutions are designed taking into account:
- abrasiveness of the conveyed material
- pneumatic conveying speed and pressure
- operating temperature
- plant configuration
- dynamic and vibration conditions
- required operating continuity
The goal is:
- protect pneumatic conveying lines subject to heavy erosion
- extend the service life of the hoses
- reduce maintenance and plant downtime
- improve the reliability and efficiency of pneumatic conveying
- ensure high operating performance even in the most demanding industrial contexts
Thanks to the combination of SARCER ceramic technology and high-performance flexible systems, HEXAGON & TETRAGON Hose are an advanced SARO solution for the pneumatic conveying of highly abrasive materials.
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Not for Product Specifications
The technical data contained herein is for reference purposes only. Please contact the technical department for assistance and recommendations regarding specifications for this product.
Disclaimer
The information provided in this technical data sheet (TDS), including recommendations for the use and application of the product, is based on the manufacturer's knowledge and experience as of the date of this TDS. The product may have a variety of different applications, as well as different application and working conditions in the environment of use beyond the manufacturer's control. SARO Srl, therefore, is not responsible for the suitability of the product for the production processes and conditions for which it is used, nor for the intended applications and results. It is strongly recommended to conduct your own tests to confirm its suitability. Any liability relating to the information contained in the technical data sheet or any other written or oral recommendation regarding the product is excluded.
SARO Srl expressly disclaims all express or implied warranties, including warranties of merchantability or fitness for a particular purpose, arising from the sale or use of SARO Srl products. SARO Srl expressly disclaims any liability for consequential or incidental damages of any kind, including lost profits.





