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Fire hose standards compared: EN 14540, EN 671, BS 6391, DIN 14811 and NFPA

A fire hose tender can ask for EN 14540, BS 6391, DIN 14811, EN 694 or NFPA 1961 — and they are not interchangeable. Each covers a different kind of hose for a different user. A plain map of the European, British, German and American standards for lay flat and reel hose, what each one covers, and how to specify against them.

Written by
Ayush Bhatia, Director
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5 min · 5 sections
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Rolled red and white fire hoses of different sizes with aluminium Storz couplings on a steel table in a fire station
Hose that looks alike on the shelf may be built to quite different standards — the specification starts with naming the right one.

At a glance

Key takeaways

  1. Building hose (for occupants) and fire service hose (for firefighters) have different standards.
  2. EN 14540 covers lay flat hose for fixed building systems (25–52 mm, up to 15 bar); EN 671-2 covers the hose system it goes in.
  3. EN 694 covers semi-rigid hose for hose reels; EN 671-1 covers the reels.
  4. BS 6391 (UK) and DIN 14811 (Germany) cover fire service lay flat delivery hose; there is no published European EN for it.
  5. NFPA 1961 (now part of NFPA 1960) classifies hose by use; NFPA 1962 sets in-service testing.

Figures verified · Scopes from SIS, BSI/SFS and DIN Media listings and NFPA documents as available on 13 October 2026. Class pressures and marking lists are in the paid standards.

Ask three fire engineers for “standard fire hose” and you may get three different standards. A hose rack in an office corridor, a hose reel in a shopping centre, an attack line on a German appliance and a supply line on an American engine are all fire hose — and each is specified to a different document. Getting the standard right is the first line of any fire hose specification, because it decides construction, size, pressure, test and marking.

/01The map.

Fire hose standards at a glance (scopes as published by the standards bodies)
StandardCoversKey limitsUsed for
EN 14540:2014HighlightedNon-percolating lay flat hose for fixed systems25–52 mm bore, up to 15 bar, −20 to +60 °CHose in EN 671-2 wall hose systems
EN 671-2:2012Hose systems with lay flat hose in buildingsPermanently connected, for occupantsHose cabinets and racks
EN 694:2014Semi-rigid hose for fixed systems19 and 25 mm up to 12 bar; 33 mm up to 7 barHose reel hose
EN 671-1:2012Hose reels with semi-rigid hose in buildingsManual and automatic reelsHose reels
BS 6391:2009Non-percolating lay flat delivery hose and assembliesUp to 15 bar (normally ≤ 10 bar), to −20 °C, Types 1, 2 and 3UK fire and rescue and industrial hose, BS 336 couplings
DIN 14811:2008Lay flat delivery hose for pumps and fire vehiclesThree classes, 14 sizes, to −25 °CGerman fire service (C 42, C 52, B, A sizes)
NFPA 1961 → NFPA 1960 (2024)Fire hose by use: attack, occupant-use, forestry, supplyMarked service test pressure; proof test twice thatNorth American and many international specs
NFPA 1962Care, use, inspection and service testing of hoseService test ≥ 300 psi attack/forestry, 200 psi supplyIn-service testing

/02Building hose: EN 671 and its hoses.

In buildings, Europe separates hose reels from hose systems. A hose reel (EN 671-1) carries semi-rigid hose to EN 694 that stays round on the drum and can be used without unrolling fully — the easiest equipment for an untrained occupant. A hose system (EN 671-2) carries lay flat hose to EN 14540, folded or rolled in a cabinet, which delivers more water but must be fully run out before use. Both are permanently connected to the water supply. Our rack and cabinet fire hose is lay flat for this kind of service; tell us the standard and approval your installation requires.

/03Fire service hose: BS 6391 and DIN 14811.

There is no published European standard for fire service delivery hose. A draft (prEN 1924) failed its formal vote at CEN in 2004 and the project was cancelled; Germany revised its national standard and published it as DIN 14811, which divides hose into three classes by construction, covers 14 inside diameters including the familiar C 42, C 52, B and A sizes, and rates hose for use down to −25 °C. German hose is joined with Storz couplings, now standardised in DIN 14333 (PN 16). In the UK, BS 6391 covers non-percolating lay flat delivery hose in Types 1, 2 and 3 for working pressures up to 15 bar — normally no more than 10 bar — with BS 336 instantaneous couplings. Types are commonly described as uncoated (Type 1), externally coated against absorption (Type 2) and with an elastomeric cover (Type 3), the last being the usual choice for fire and rescue services.

Four aluminium Storz fire hose couplings of increasing size in a row on a grey workshop bench
FIG. 01Storz couplings in several sizes: in German practice the hose standard and the coupling standard are specified together.

/04NFPA: classified by use.

In North America, and in many Gulf specifications, hose is classified by who uses it and how. NFPA 1961 — consolidated in 2024 into NFPA 1960 — covers attack hose for trained firefighters, occupant-use hose on standpipes, forestry hose for wildland fire and large-diameter supply hose. Each hose is marked with its service test pressure, and the factory proof test is twice that figure. NFPA 1962 sets the in-service regime: service tests of at least 300 psi for attack and forestry hose and 200 psi for supply hose, or the marked pressure; never the proof pressure in the field. Our guide to fire hose cabinet maintenance covers the intervals.

/05Specifying against a standard.

  1. Name the standard and its edition — and the type or class within it.
  2. Give the bore and length in the standard’s own terms (C 52, 45 mm, 1-3/4").
  3. Name the couplings — Storz, BS 336 instantaneous, NST or other — and who fits them.
  4. State the approval or certification required: third-party certification, a civil defence listing, a fire service framework.
  5. Ask for the marking each standard requires on the hose, and for the test certificates.

Common questions

Is there a European standard for fire service hose?
No published EN. The draft prEN 1924 was cancelled in 2004; Germany published DIN 14811 and the UK uses BS 6391.
What pressure is EN 14540 hose rated for?
Up to 15 bar maximum working pressure, in bores from 25 to 52 mm, for use from −20 to +60 °C.
What is the difference between EN 671-1 and EN 671-2?
EN 671-1 covers hose reels with semi-rigid hose; EN 671-2 covers hose systems with lay flat hose. Both are for occupants in buildings.
What does a BS 6391 Type 3 hose mean?
Type 3 is commonly described as a lay flat hose with an elastomeric external cover, the type most used by UK fire and rescue services. Check the standard for the formal definition.
Has NFPA 1961 been replaced?
It was consolidated with other hose and equipment standards into NFPA 1960 in 2024.

Fire hose and couplings

MarketFire hose supply to the UKFire hose quoted against BS 6391 and EN 14540 requirements.MarketFire hose supply to GermanyFire hose and Storz couplings for German users.MarketFire hose supply to Saudi ArabiaFire hose quoted against NFPA-based Saudi requirements.

What next

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    Where we supply this hose

    For chemical, food-grade, steam and water hose the certificate is most of what the buyer is actually purchasing, so it is prepared before dispatch rather than chased afterwards. We ship this class of hose from Dubai into plants audited against the same standards we quote to, with the documentation attached to the consignment and referenced on the invoice.

    GCC & Middle East

    Western & Northern Europe

    North America & Caribbean

    Everything above ships from the same Dubai warehouse. If your destination is not listed, it is almost certainly still one we quote. See every export destination

Specifying fire hose to a standard?

Send the standard, type or class, bore, length, couplings and certification required. We will confirm what can be supplied against it.

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