Abrasion-resistant · Abrasion-resistant
DELTAFLEX
DELTAFLEX is a highly flexible SBR suction hose with corrugated outer coating and combined textile plies + steel spiral reinforcement. The hose is designed for water, slurry and sewage pumping in agriculture and municipal services. 3 bar working pressure and 0.9 bar vacuum cover typical pump applications, and the flexible wall tolerates mechanical impacts from mobile slurry spreaders and sewage trucks. Wide dimension range (50-254 mm ID) and multiple standard lengths make the hose suitable for many different installation configurations.
- -30 to +85 C
- 3 bar pressure
- 0.9 bar vacuum
- Corrugated
- Slurry/sewage
- Suction and pressure
Why this hose?
DELTAFLEX combines four properties critical in slurry and sewage handling: flexibility (corrugated outer coating), collapse resistance (steel spiral), tensile strength (textile plies) and wear resistance (SBR wall). It is a specialised combination that distinguishes the hose from ordinary industrial hoses and makes it the standard solution in the agricultural segment.
The SBR material is the specific choice for abrasive liquid media. SBR's molecular structure provides better wear resistance than NR (natural rubber) or EPDM against abrasive particles in slurry and sewage. In return, SBR has poorer UV and weather resistance, but this is typically acceptable because slurry hoses do not lie exposed to weather for extended periods.
The flexible construction (multiple standard lengths from 2 to 6 m) is practical for mobile installations where the hose is moved between positions. Short pieces (2-3 m) are used in complex manure spreader installations where the hose must be agile; longer pieces (5-6 m) are used for distance supply applications.
Where it is used
Agriculture uses the hose primarily on manure spreaders - mobile vehicles that handle slurry from storage tank to field. The hose is typically mounted in 3-5 m sections between tank, pump and spreader boom. Wear resistance is critical here because slurry particles (stones, organic material) continuously wear on the inner surface.
Municipal sewage trucks use the hose in septic tank emptying. The operator connects the hose between truck and tank, and the pump sucks the sewage in. 0.9 bar vacuum is sufficient for most septic tank installations, and the hose's flexibility allows it to be handled by a single operator.
Industrial dewatering (floods, construction excavations, drainage operations) uses the hose to move water from exposed area to drain. The wide dimension portfolio (50-254 mm) means the same product family covers from smaller installations (50-100 mm) to large flood installations (200+ mm).
The hose is colloquially known as a slurry hose, sewage hose or suction hose.
Technical specifications
The hose's key specifications are briefly summarised below. The SBR wall and textile+steel reinforcement are specifically designed for slurry and sewage handling where both wear resistance and pressure and vacuum resistance are required.
| Material | SBR (styrene-butadiene rubber) inner and outer |
|---|---|
| Reinforcement | Textile plies + steel spiral |
| Colour | Black (both inner and outer) |
| Outer construction | Corrugated and wrapped |
| Temperature range | -30 to +85 C |
| Working pressure | 3 bar |
| Vacuum | 0.9 bar |
| Wall thickness | 5-13 mm depending on dimension |
| Standard lengths | 2, 3, 4, 5 and 6 m (8 main dimensions) |
| Manufacturer SKU | 3600 |
Dimensions and ordering
The table shows the hose's main dimensions. Each dimension is typically delivered in multiple standard lengths (2-6 m) - see article number for precise configuration. Pressure values (3 bar / 0.9 bar vacuum) are consistent across the entire range.
| Inner Ø |
Outer Ø |
Wall thickness |
Working pressure |
Vacuum |
Bend radius |
Max. length |
Weight |
Roll |
Article no. |
|---|---|---|---|---|---|---|---|---|---|
| 50 | 60 | 5 | 3 | 0.9 | 175 | 2 | 1.42 | 2 | 3600050200 |
| 50 | 60 | 5 | 3 | 0.9 | 175 | 3 | 1.42 | 3 | 3600050300 |
| 50 | 60 | 5 | 3 | 0.9 | 175 | 5 | 1.42 | 5 | 3600050500 |
| 50 | 60 | 5 | 3 | 0.9 | 175 | 6 | 1.42 | 6 | 3600050600 |
| 76 | 88 | 6 | 3 | 0.9 | 266 | 2 | 2.18 | 2 | 3600075200 |
| 76 | 88 | 6 | 3 | 0.9 | 266 | 3 | 2.18 | 3 | 3600075300 |
| 76 | 88 | 6 | 3 | 0.9 | 266 | 4 | 2.18 | 4 | 3600075400 |
| 76 | 88 | 6 | 3 | 0.9 | 266 | 5 | 2.18 | 5 | 3600075500 |
| 76 | 88 | 6 | 3 | 0.9 | 266 | 6 | 2.18 | 6 | 3600075600 |
| 102 | 116 | 7 | 3 | 0.9 | 357 | 2 | 3.39 | 2 | 3600100200 |
| 102 | 116 | 7 | 3 | 0.9 | 357 | 3 | 3.39 | 3 | 3600100300 |
| 102 | 116 | 7 | 3 | 0.9 | 357 | 4 | 3.39 | 4 | 3600100400 |
| 102 | 116 | 7 | 3 | 0.9 | 357 | 5 | 3.39 | 5 | 3600100500 |
| 102 | 116 | 7 | 3 | 0.9 | 357 | 6 | 3.39 | 6 | 3600100600 |
| 102 | 116 | 7 | 3 | 0.9 | 357 | 1 | 3.39 | — | 3600100100 |
| 110 | 124 | 7 | 3 | 0.9 | 385 | 3 | 3.83 | 3 | 3600110300 |
| 110 | 124 | 7 | 3 | 0.9 | 385 | 4.9 | 3.83 | 4 | 3600110490 |
| 127 | 143 | 8 | 3 | 0.9 | 450 | 3 | 5.13 | 3 | 3600125300 |
| 127 | 143 | 8 | 3 | 0.9 | 450 | 5 | 5.13 | 5 | 3600125500 |
| 127 | 143 | 8 | 3 | 0.9 | 450 | 6 | 5.13 | 6 | 3600125600 |
| 152 | 170 | 9 | 3 | 0.9 | 532 | 3 | 6.83 | 3 | 3600150300 |
| 152 | 170 | 9 | 3 | 0.9 | 532 | 4 | 6.83 | 4 | 3600150400 |
| 152 | 170 | 9 | 3 | 0.9 | 532 | 5 | 6.83 | 5 | 3600150500 |
| 152 | 170 | 9 | 3 | 0.9 | 532 | 6 | 6.83 | 6 | 3600150600 |
| 203 | 225 | 11 | 3 | 0.9 | 720 | 2 | 11.82 | 2 | 3600200200 |
| 203 | 225 | 11 | 3 | 0.9 | 720 | 3 | 11.82 | 3 | 3600200300 |
| 203 | 225 | 11 | 3 | 0.9 | 720 | 4 | 11.82 | 4 | 3600200400 |
| 203 | 225 | 11 | 3 | 0.9 | 720 | 5 | 11.82 | 5 | 3600200500 |
| 203 | 225 | 11 | 3 | 0.9 | 720 | 6 | 11.82 | 6 | 3600200600 |
| 254 | 280 | 13 | 3 | 0.9 | 914 | 1 | 15 | — | 3600250100 |
| 254 | 280 | 13 | 3 | 0.9 | 914 | 4 | 18.33 | — | 3600250400 |
Fields without a value (—) are not specified in the manufacturer's factsheet. Overpressure and underpressure values are recommended operating limits; the product can be subjected to higher loads on request. Bend radius is measured along the inside of the hose bend.
Standards and compliance
The hose is qualified per the central European standard for industrial rubber hoses. EN ISO 1307:2008 is the primary reference.
- EN ISO 1307:2008. European standard for rubber and thermoplastic hoses for general use. Defines dimensions, pressure tolerance and marking.
- EN 12115. European standard for rubber and thermoplastic hoses for liquids and chemicals.
- ISO 4649 (formerly DIN 53516). International standard for determination of wear resistance in rubber.
- EN ISO 8033:2016. Test of adhesion between lining, wall material and reinforcement.
- RoHS Directive (2011/65/EU). Restriction of hazardous substances. Manufacturer declaration on file.
- REACH (EC 1907/2006). Registration of chemical substances. Manufacturer declaration on request.
- ISO 9001:2015. Quality management system at the manufacturer. Ensures each batch follows the same specification.
Documentation and downloads
Additional documents about this hose, its compliance and installation. Click to download as PDF in a new tab.
Help with material selection
Although this hose isn't ATEX-relevant, these two articles provide useful background on electrical resistance and industrial safety — important if you later combine the hose with electrical equipment or work in mixed environments:
The invisible weakest link
Why a conductive or antistatic hose isn't sufficient on its own — and what grounding means for the complete system.
Know your ohm
The difference between antistatic and conductive, which resistance limits apply where, and how to measure them correctly.
Industries that use it
DELTAFLEX is used where slurry, sewage, wastewater or other abrasive liquids must be pumped at moderate pressures - typically in agriculture and municipal services.
Agriculture is the main market. Manure spreaders use the hose as supply hose from slurry tank to spreader boom - here the combination of suction and pressure function is decisive because the system must be able to both suck from the tank and pump to the field. The hose's 0.9 bar vacuum and 3 bar pressure are typical specs for agricultural pump systems.
Municipal sewage services use the hose in septic tank emptying, sewerage maintenance and sewage transport. The SBR wall resists ammonia vapours from slurry and sewage water better than PVC-based hoses, and the corrugated outer coating allows the hose to be rolled out at narrow work stations.
Industrial pump applications use the hose for slurry and abrasive pumping where 3 bar is sufficient working pressure. This covers many process water and wear-resistance pump applications in chemical industry and general industrial maintenance. The hose is NOT suitable for high-pressure applications above 5 bar - for these applications we recommend specialised wear-resistant hoses.
Custom lengths and assemblies
The hose can be delivered cut to desired lengths. The standard roll can be supplemented with shorter pieces or multiple rolls by arrangement.
At Particulair we advise on couplings and sizing. Send us a sketch of your application and we will assess the right variant and length.
Frequently asked questions
What is DELTAFLEX particularly suitable for?
The hose is built for water and slurry pumping in agricultural and sewage applications. The flexible SBR construction with textile plies and steel spiral allows collapse resistance under suction, and the corrugated outer coating provides good flexibility for mobile installations. 3 bar working pressure and 0.9 bar vacuum cover typical slurry and sewage pump applications.
Why SBR instead of EPDM?
SBR (styrene-butadiene rubber) has better wear resistance than EPDM against abrasive particles in slurry and sewage. EPDM has better weather and UV resistance, but in agricultural applications where the hose is most exposed to inner wear (slurry particles), SBR is preferred. SBR is also typically cheaper, which is important for the agricultural segment where cost management is critical.
How many dimensions are in the range?
The hose is available in 8 main dimensions from ID 50 mm to 254 mm, but each dimension is typically delivered in multiple standard lengths (2, 3, 4, 5, 6 m). This gives a total of over 20 SKU variants. Larger dimensions (203 mm and 254 mm) are limited to shorter standard lengths due to logistics and handling.
What is the difference between textile plies and steel spiral?
The hose has both textile plies (layers of reinforcing fibres) and steel spiral embedded in the wall. Textile plies provide tensile strength and prevent the hose from stretching under pressure. The steel spiral provides collapse resistance under suction. The combination is specific to suction hoses that must handle both pressure and vacuum simultaneously.
Is the hose ATEX-approved?
The hose has NO explicit ATEX declaration on the factsheet. SBR construction without specific antistatic additive is typically insulating. For ATEX zones with combustible slurry gas (methane, H2S) we recommend a conductive or antistatic variant - contact us for ATEX-suitable slurry hoses if your installation requires it.
How long does the hose last?
Service life depends on usage frequency and abrasive medium. Sustained operation with clean water: 7-10 years. Daily slurry or sewage operation: 3-5 years. Abrasive chemical media or high-pressure cycles: 1-2 years. Annual visual inspection for crack formation in outer coating or bend areas is recommended.
Which couplings are recommended?
For slurry and sewage applications, Bauer or Storz couplings with wear-secured rings are recommended. These are the typical quick couplings on slurry spreaders and municipal sewage trucks. For lower pressure applications, standard worm-drive clamps can be used. We typically fit couplings to the hose by arrangement.
Can the hose be delivered in specific lengths?
Yes - the hose is typically stocked in standard lengths of 2, 3, 4, 5 and 6 m for smaller dimensions and 1-6 m for larger. Other lengths can be delivered by arrangement. We can also fit couplings and deliver pre-assembled slurry hose sets.