Liquid hoses
LAVAFORM/EXTRA
LAVAFORM/EXTRA is the hot-water-rated variant of LAVAFORM. Same TPE construction and same pressure class (30 bar working pressure), but with temperature capacity up to 95 C. The red longitudinal stripe identifies the hot-water variant in installations where several parallel hoses sit side by side.
- -20 to +95 C
- EN ISO 1307:2008
- Highly flexible
- REACH/RoHS
- Industrial
- Water/coolant medium
Why this hose?
LAVAFORM/EXTRA uses the same TPE construction as LAVAFORM, but with a formulation optimised for higher temperatures. Up to 95 C the hose retains its flexibility and pressure resistance without becoming brittle.
The red longitudinal stripe follows the same international convention as welding hoses: red = hot medium. In parallel installations with several hoses side by side it is a visual marker that reduces the risk of incorrect connection during service.
The pressure class is identical to the base LAVAFORM (30 bar working pressure, 90 bar burst). The 3:1 safety margin combined with hot-water capacity makes LAVAFORM/EXTRA well-suited to dishwashers and industrial equipment with hygiene cycles.
Where it is used
Dishwashers and combination appliances in both household and industrial designs use LAVAFORM/EXTRA as internal water supply. Hygiene cycles with 80-90 C water are not an extreme load but continuous - which is exactly what the hose is built for.
Industrial laundries with hot-water pumps and large kitchen equipment use the hose for continuous operation with temperature shifts. The TPE construction is highly flexible and easy to install in tracks and guides.
Building installations with hot water can use LAVAFORM/EXTRA as a connection - typically at moderate pressure classes where a rubber hose would be unnecessarily heavy.
LAVAFORM/EXTRA is colloquially known as a hot-water hose or dishwasher hose.
Technical specifications
The hose's key specifications are summarised briefly below. Contact us if you need explicit values at a specific operating temperature or application scenario.
| Outer wall material | Thermoplastic elastomer (TPE) |
|---|---|
| Inner lining material | Thermoplastic elastomer (TPE) |
| Reinforcement | Textile plies (polyester or textile reinforcement) |
| Outer wall colour | grey with red longitudinal stripe |
| Temperature range | -20 to +95 C |
| Working pressure | 30 bar |
| Outer wall construction | Smooth |
| Inner lining | Smooth extruded |
| Standard roll length | 40 m |
| Manufacturer SKU | 4012 |
Dimensions and ordering
The table shows the available standard dimensions. Contact us if your application scenario requires a specific wall thickness or coupling surface. Pressure values refer to 20 C; at higher operating temperatures the effective working pressure is reduced.
| Inner Ø |
Outer Ø |
Wall thickness |
Working pressure |
Burst pressure |
Max. length |
Weight |
Roll |
Article no. |
|---|---|---|---|---|---|---|---|---|
| 10 | 17 | 3.5 | 30 | 90 | 40 | 0.2 | 40 | 4012010000 |
| 13 | 20 | 3.5 | 30 | 90 | 40 | 0.25 | 40 | 4012013000 |
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 manufactured to European and international standards for industrial rubber and thermoplastic hoses. EN ISO 1307:2008 is the primary construction standard; other directives and certificates follow the manufacturer's quality system.
- EN ISO 1307:2008. European standard for rubber and thermoplastic hoses for general applications. Defines dimensions, pressure tolerance, durability and marking.
- EN ISO 8031:2020. Determination of electrical resistance in rubber and thermoplastic hoses. Used to confirm the hose's insulating character (water hoses are normally not conductive).
- EN ISO 8033:2016. Test of adhesion between lining, wall material and reinforcement. Ensures the hose's layers stay bonded under pressure and flexing.
- EN ISO 7233:2016. Determination of vacuum resistance. Relevant for water hoses operating with short-term negative pressure.
- RoHS Directive (2011/65/EU). Restriction of hazardous substances in electrical/electronic equipment. Manufacturer declaration on file.
- REACH (EC 1907/2006). Registration, Evaluation and Authorisation of Chemicals. Manufacturer declaration on request.
- ISO 9001:2015. Quality management system at the manufacturer. Ensures each production 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
LAVAFORM/EXTRA is used where LAVAFORM is insufficient on temperature - typically in dishwashers, combination appliances and pump applications with hot-water supply.
Dishwashers and combination wash/dry appliances are the main market. The hose tolerates the water temperature used for descaling and hygiene cycles (typically 60-90 C) without loss of elasticity.
Industrial laundries and large kitchen equipment use LAVAFORM/EXTRA in pump circuits where hot-water supply cycles. Temperature cycling is one of the largest loads on elastomers, and TPE is constructed to tolerate it.
Building installations with hot water (radiator circuits, hot-water distribution) can use the hose at moderate pressure classes. For larger dimensions or higher operating pressure we recommend a rubber-based hose like RADIACORD or TEMPERFORM.
Custom lengths and assemblies
The hose can be delivered cut to desired lengths. The standard roll is 40 m, and shorter pieces or multiple rolls can be supplied 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 the difference between LAVAFORM and LAVAFORM/EXTRA?
LAVAFORM is intended for cold-water applications (up to 60 C) and has a blue longitudinal stripe. LAVAFORM/EXTRA tolerates hot water (up to 95 C) and has a red longitudinal stripe. Both have the same TPE construction and the same pressure class (30 bar working pressure, 90 bar burst).
What material is the hose made from?
Both inner and outer layers are thermoplastic elastomer (TPE) with polyester plies as reinforcement. TPE provides low weight and high flexibility while withstanding the pressure surges from a washing machine's spin cycle.
What working pressure does the hose tolerate?
30 bar continuous working pressure and 90 bar burst pressure. That gives a 3:1 safety margin - critical because washing machine pumps create short-term pressure spikes at start and stop.
Can I use LAVAFORM for drinking water?
The hose is not specifically approved for drinking water contact (no EU 1935/2004 or FDA declaration on the factsheet). For drinking water applications we recommend a variant with explicit food approval - contact us for guidance.
Which couplings can be used?
Standard worm-drive clamps and industrial quick couplings work fine on LAVAFORM. Specific metal crimp clamps provide better leak protection in continuous operation. We are happy to advise on coupling choice based on your application scenario.
Is the hose ozone and UV resistant?
The factsheet does not explicitly specify ozone or UV resistance for LAVAFORM. TPE is typically less UV-stable than EPDM under prolonged outdoor exposure - for visible outdoor use we recommend TEMPERFORM or RADIACORD as alternatives.
How long does the hose last?
Service life depends on frequency of use, water quality and cleaning agents. Daily washing-machine operation typically gives 3-7 years. Monthly visual inspection for cracks or discolouration is recommended. At leakage or visible signs of degradation the hose must be replaced.
Can the hose be delivered in lengths other than 40 m?
Yes - 40 m is the standard roll, but we can deliver shorter cut pieces or multiple rolls by arrangement. For OEM use in appliance manufacturing we also offer continuous rolls up to 200 m from the same batch.