Chemical-resistant · Chemical-resistant
CORROSIV®/SP/EN
Suction and pressure hose in full-EPDM with a steel spiral for conveying concentrated acids and alkalis. Identical chemical resistance to its sister product CORROSIV®/EN, identical working pressure of 16 bar — the decisive difference is the steel spiral, which makes the hose resistant to vacuum (up to 0.9 bar negative pressure). That makes it suitable for both loading and unloading of tank trucks, unlike the pressure-only EN variant which can only handle positive working pressures.
- Chemical-resistant
- EPDM liner
- Highly flexible
- Up to +90 °C
- Antistatic <109 Ω
- Cut to length
Why this hose?
CORROSIV®/SP/EN is the vacuum-capable variant of the CORROSIV series. The construction uses the same EPDM liner and EPDM cover as the standard variant, but a continuous steel spiral is embedded in the wall. That gives the hose form stability under negative pressure — up to 0.9 bar vacuum — without collapse.
In other words, the SP variant covers the practical scenario where a process requires both pressure and suction on the same hose. Tank-truck loading at the terminal and unloading at the customer is the most obvious example — one direction calls for pressure, the other for suction, and it is impractical to swap hoses between them.
Chemical resistance is identical to its sister product CORROSIV®/EN — EPDM liner, concentrated acids and alkalis, and the hose is certified to EN 12115:2021 and TRbF 131 Part 2. The wall construction includes textile reinforcement and the same antistatic copper embedment as the standard variant.
Chemical compatibility must be verified for each application. The hose liner is specified for a certain class of chemicals, but temperature, concentration and contact time can significantly change compatibility. A material that holds at 30% acid at room temperature may be unsuitable at 60% acid at +60 °C.
We have access to the manufacturer's full resistance table and can verify compatibility for your specific medium. Contact us before installation if in doubt — it is cheaper than a failing hose.
Where it is used
The hose is used where the process requires vacuum capability — typically in loading and unloading of tank trucks, rail tank cars and marine tankers, where the same hose has to handle both pressure and suction.
In the chemical industry, it sits in transfer lines between reactors and storage tanks, where suction is used to empty a vessel before cleaning. In the petrochemical industry, it is used in the loading and unloading of refinery products, where TRbF 131 conformity is required for flammable media.
It covers sizes from Ø 25 mm to Ø 75 mm — broader than the standard variant — making it also suitable for industrial pump stations and chemical storage facilities where the hose is part of mobile unloading installations.
The formal name is CORROSIV®/SP/EN. In daily use it is most often called "the SP variant", "CORROSIV with spiral" or simply the "suction acid hose" — SP stands for Suction-Pressure, not Special Purpose.
Technical specifications
Specifications are valid as of 2026-04-13. Fields without a value are not specified in source data.
| Material | Special composition EPDM liner with EPDM cover |
|---|---|
| Colour | Black |
| Wall construction | Smooth EPDM liner, textile and steel reinforcement, EPDM cover (wrapped) |
| Conveyed media | Liquid |
| Temperature range | −40 °C to +90 °C |
| Short-term peak | +125 °C |
| Smooth surface | Smooth interior |
| Electrical resistance | Antistatic wall with surface and electrical resistance <109 Ω. Method: EN 12115:2021 (electrical contact resistance) |
| Cut to length | Yes — Particulair cuts the hose to your dimensions |
Both variants are identical in chemical resistance, working pressure (16 bar) and standards conformity (EN 12115:2021, TRbF 131). The difference is vacuum capability: standard EN is a pressure-only hose and will collapse under suction; SP/EN has a steel spiral that handles up to 0.9 bar negative pressure. Choose EN where the process only pushes; choose SP/EN where the hose also has to suck.
Dimensions and ordering
CORROSIV®/SP/EN is supplied in 7 standard sizes from inner Ø 25 mm to 100 mm. Each size has its own article number at the manufacturer. Standard roll length is typically 40 m, and the hose can be cut to length.
| Inner Ø |
Outer Ø |
Wall thickness |
Working pressure |
Burst pressure |
Vacuum |
Bend radius |
Max. length |
Weight |
Roll |
Article no. |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 37 | 6 | 16 | 64 | 0.9 | 150 | 40 | 0.78 | 40 | 3830025000 |
| 32 | 44 | 6 | 16 | 64 | 0.9 | 175 | 40 | 1.03 | 40 | 3830032000 |
| 38 | 51 | 6.5 | 16 | 64 | 0.9 | 225 | 40 | 1.25 | 40 | 3830038000 |
| 50 | 66 | 8 | 16 | 64 | 0.9 | 275 | 40 | 2.1 | 40 | 3830050000 |
| 63 | 79 | 8 | 16 | 64 | 0.9 | 300 | 40 | 2.54 | 40 | 3830063000 |
| 75 | 91 | 8 | 16 | 64 | 0.9 | 350 | 40 | 2.8 | 40 | 3830075000 |
| 100 | 116 | 8 | 16 | 64 | 0.9 | 450 | 40 | 4.1 | 40 | 3830100000 |
Note: Fields without a value (—) are not specified in the manufacturer's factsheet. Overpressure and underpressure are recommended operating limits; the product can be subjected to higher loads on request. Bend radius is measured along the inside of the hose. Contact us for full specifications or special variants.
Standards and compliance
The hose is tested and certified to the following standards:
- REACH (EC 1907/2006). EU regulation on registration, evaluation, authorisation and restriction of chemicals. The hose's materials are REACH-compliant; manufacturer's declaration is available for download.
- RoHS (Directive 2011/65/EU). Restriction of Hazardous Substances — restriction on the use of certain hazardous substances in electronic products. The hose's components comply with RoHS limit values.
Documentation and downloads
Additional documents about this hose, its compliance and installation. Click to download as PDF in a new tab.
Industries that use it
The hose is used across a wide range of industries — below is an overview of the most typical industries where CORROSIV®/SP/EN is used:
In the chemical industry, the hose typically sits on tank truck connections during loading and unloading of concentrated acids, alkalis and solvents. The steel spiral's vacuum capability lets the same hose be used in both directions — reducing the cost of separate hoses and minimising contamination risk.
In the petrochemical industry, it is used in refinery transfers and chemical storage facilities, where TRbF 131 conformity is required for handling flammable liquids. In food and pharmaceutical cleaning, it appears in CIP/SIP cycles where the hose can suction solutions out of a vessel before filling with the next medium.
In laboratory operations and pilot plants, it features in chemical process setups that alternate between positive and negative pressures in the same cycle — for instance distillation rigs or reactor emptying.
Custom lengths and assemblies
CORROSIV®/SP/EN can be cut to length and assembled with couplings, cuffs and threads to fit your installation precisely. We produce complete hose assemblies with crimped ferrules, clamp collars or threaded connections, depending on what the process requires.
For chemical installations, couplings must be materially compatible with the medium — typically PTFE, EPDM or FKM gaskets and stainless steel fittings. Contact us with your medium and we'll select the right assembly.
Frequently asked questions
Which chemicals can the hose handle?
It depends on the material selection in liner and cover. Compatibility is verified against the manufacturer's chemical resistance table — contact Particulair before installation if in doubt. We have access to the full table.
Is the hose ATEX-approved?
It depends on the variant. Conductive (EC) variants are ATEX-approved. Antistatic variants are TRbF 131-compliant for flammable liquids. Standard insulating variants are NOT for ATEX use.
Can the hose be cleaned after a media change?
Yes, but the cleaning medium must be compatible with the liner. Water and steam flushing is often sufficient; for aggressive residues, solvent flushing may be necessary — verify against the resistance table first.
How long does the hose last with strong acids?
It depends on concentration, temperature and contact duration. EPDM liner typically lasts 1-3 years under continuous contact with 30% acids at room temperature; FKM/Viton lasts longer at elevated temperatures. Visual inspection every 6 months is recommended.
Can the hose be cut to length with couplings?
Yes. We cut the hose and install couplings that are materially compatible with the medium. This typically means PTFE, EPDM or FKM seals and stainless steel fittings.