Short answer
Layflat hoses are products that can fold flat and take up little space when unpressurized. Selection defines the working pressure, fluid, temperature, coupling and site conditions. Using the layflat construction for discharge does not mean the same product is also suitable for suction.
Technical explanation
A construction that can flatten may offer transport and storage advantages; on the other hand, the cross-section must be maintained under operating conditions for flow to continue. Unless suitability for suction is explicitly documented, a layflat product should not be treated as a suction hose. Dragging of the hose, sharp objects on the ground, vehicle crossings and loads in the coupling area are taken into account. Elongation or movement characteristics under pressure may vary from model to model; a general percentage should not be assumed.
Topic-specific checkpoints
| Item | Description |
|---|---|
| Purpose of use | Drainage, irrigation or other discharge service; suction confirmed separately. |
| Ground condition | Dragging, sun, sharp ground and vehicle crossings. |
| Connection | Coupling type and an assembly system suitable for the hose. |
| Storage | Manufacturer instructions for cleaning, drying and coiling. |
How is it assessed in practice?
For a temporary water drainage line, determine the route and vehicle crossings in advance. Assess the storage size of the hose when coiled separately from the space it occupies during operation. For example, a product selected because it is easy to carry may not be sufficient against heavy ground contact. In the order, state clearly whether the connections are included and what the assembly system is. Also define the post-use cleaning and drying plan according to the conditions the product permits.
Original editorial recommendation; not a clause of a standard.
Frequently asked questions
Can a layflat hose with a high pressure rating be used on pump suction?
It can be considered only if it is explicitly designed for suction and its suitability is stated. Positive pressure capacity does not prove that the cross-section is maintained under vacuum.
Source coverage
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S017
Parker Safety Guide, Publication 4400-B.1 Parker Hannifin · accessed 2026-10-20 PDF page 4; 6.0 Hose Storage and 6.1-6.1.4 Age Control | PDF page 2; 2.7 SizePDF page 2; 2.3 SuctionPDF page 2; 2.8 Routing, 2.10 Mechanical Loads and 2.11 Physical Damage | PDF page 2; 2.2 Pressure
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S036
Industrial Hose Safety Connections Gates · accessed 2026-10-19 PDF pp. 6–8 construction and selection; pp. 10–19 maintenance; pp. 21–27 special services