Technical reference

Legislation

The EU directives, regulations and Danish rules governing flow aid equipment and its use. Note the split between the product side, that is what the manufacturer must do, and the workplace side, that is what the customer as employer must do.

ATEX · Equipment • In force

Directive 2014/34/EU — ATEX equipment directive

The ATEX equipment directive governs the design, manufacture and marking of equipment for use in potentially explosive atmospheres. Article 2 defines equipment as machines and devices capable of causing an explosion through their own sources of ignition, so the directive is explicitly not limited to electrical equipment. It is the single most important act for flow aids, because the equipment sits on silos holding combustible dust. OLI marks P, K, F, S, OR and OT as II2G Ex h IIB Tx Gb and II2D Ex h IIIC Tx Db. The letter h is precisely the marking for non-electrical explosion protection.

Relevance: All pneumatic vibrators, air cannons and hammers in a classified zone.

Source: eur-lex.europa.eu

ATEX · Workplace • In force

Directive 1999/92/EC — ATEX workplace directive

The ATEX workplace directive places three duties on the employer. Classify areas into zones under Annex I, that is zones 20, 21 and 22 for dust. Select equipment by category under Annex II Part B, so that zone 20 requires category 1, zone 21 category 1 or 2, and zone 22 category 1, 2 or 3. And draw up an explosion protection document under Article 8. It is the buyer's mirror of the equipment directive and explains why you need to know the category before ordering. A silo interior holding flour or sugar is typically zone 20 or 21, the outside typically 21 or 22.

Relevance: Determines which equipment category you may fit where.

Source: eur-lex.europa.eu

Machinery · Until 19 Jan 2027 • Expires 19 Jan 2027

Directive 2006/42/EC — Machinery Directive

The operative law for everything placed on the market today. Article 2 defines machinery as an assembly fitted with a drive system other than directly applied human or animal effort, with linked moving parts. That definition catches every pneumatic vibrator, hammer and air cannon in the range. The directive also contains an exclusion in Article 1(2)(k) that keeps electric motors outside the Machinery Directive where they are covered by the Low Voltage Directive. That is why the electric and the pneumatic vibrators follow different acts.

Relevance: Applies up to and including 19 January 2027, when the Regulation takes over.

Source: eur-lex.europa.eu

Machinery · From 20 Jan 2027 • Applies from 20 Jan 2027

Regulation (EU) 2023/1230 — Machinery Regulation

The Machinery Regulation replaces the Machinery Directive with a directly applicable regulation. There is no national transposition, so the same text binds Denmark and Poland identically. The changeover is hard and keyed to the moment the product is placed on the market. The European Commission states that all machinery placed on the EU market before 20 January 2027 must comply with the Machinery Directive, and that the Regulation applies on a mandatory basis from 20 January 2027. EUR-Lex gives 19 January 2027 as the end of validity of the Machinery Directive. There is no overlap period.

Caveat: We have not been able to read Article 2(2) of the Regulation in full, because EUR-Lex truncates the text. We therefore cannot say whether the electric motor exclusion in Article 1(2)(k) of the Machinery Directive is carried over. If it is not, electric vibrators move into machinery scope from 2027. This must be read in the Official Journal pdf before anyone plans around it.

Relevance: All new equipment from 20 January 2027.

Source: single-market-economy.ec.europa.eu

Electrical · Low voltage • In force

Directive 2014/35/EU — Low Voltage Directive

The Low Voltage Directive applies to electrical equipment designed for use at voltages between 50 and 1 000 V AC and between 75 and 1 500 V DC. It is not an obvious entry on a list about pneumatics, but it belongs here because Article 1(2)(k) of the Machinery Directive expressly keeps electric motors outside the Machinery Directive where they are covered here. MVE-MICRO runs at 230 V single phase and 400 V three phase. The electric micro vibrators are therefore Low Voltage Directive products and not Machinery Directive products, while the entire pneumatic range is the opposite. MVE-DC at 12 and 24 V sits below the threshold and falls outside altogether.

Relevance: background; the range on this site is pneumatic.

Source: eur-lex.europa.eu

Pressure · Air cannons • In force

Directive 2014/68/EU — Pressure Equipment Directive

An air cannon is a pressure vessel discharged through a fast valve, so it has to be held up against this directive. Article 4(1)(a)(ii) covers vessels for Group 2 fluids with a volume greater than 1 litre where the product of the design pressure PS and the volume V exceeds 50 bar-litre, or where PS exceeds 1 000 bar. Compressed air is a Group 2 fluid. Where equipment falls below the threshold, Article 4(3) requires it to be built to sound engineering practice, and it must then precisely not carry PED CE marking. Note that it is the design pressure, not the working pressure, that enters the calculation.

Caveat: Neither the catalogue nor the product sheets state the design pressure and vessel volume for PG 40, PG 63 and PG 80. We therefore cannot say whether a given model sits above or below the 50 bar-litre threshold. Ask OLI for PS and V per model before anyone draws a conclusion.

Relevance: PG air cannons and the air receiver feeding the installation.

Source: eur-lex.europa.eu

Workplace · Noise • In force

Directive 2003/10/EC — Noise at work

Article 3 sets three tiers. The exposure limit value is 87 dB(A) over eight hours and a peak of 200 pascal. The upper exposure action value is 85 dB(A) and 140 pascal. The lower is 80 dB(A) and 112 pascal. This is the most concrete link between legislation and product choice on the whole site, because OLI publishes noise levels in the catalogue and they are high. The PS hammer is rated at 125 dB(A), the PG air cannon at 105, P at 100, and S, OR and OT at around 90. By comparison K and F are rated at 80 dB(A) and MVE at 76.

Relevance: Decisive for the choice between impact equipment and cushioned or electric units.

Source: eur-lex.europa.eu

Workplace · Vibration • In force

Directive 2002/44/EC — Vibration at work

Article 3 sets limits for daily exposure. For hand and arm the exposure limit value is 5 m/s2 and the action value 2,5 m/s2, both as A(8). For whole-body vibration the limit value is 1,15 m/s2 and the action value 0,5 m/s2. Flow aids are deliberate vibration sources bolted to silos, hoppers, chutes and silo trailers, and exposure typically occurs as whole-body vibration via platforms and walkways, or as hand-arm vibration when intervening on running equipment. The Annex refers to ISO 5349-1 and ISO 5349-2 for hand and arm and to ISO 2631-1 for whole body.

Caveat: We have read the entire Flow Aids catalogue. It states centrifugal force in kilograms and frequency in vpm, but no declared vibration emission values in m/s2 for any product. We can therefore describe the duty, but not supply figures.

Relevance: The employer's duty once the equipment is running.

Source: eur-lex.europa.eu

Workplace · Use • In force

Directive 2009/104/EC — Use of work equipment

The work equipment directive codifies Directive 89/655/EEC and its amendments. The employer must select equipment suitable for the work, have it inspected by a competent person before first use and periodically thereafter, have it re-inspected after modification or an accident, and maintain it throughout its life. It is the legal basis for the Danish regulation on the use of technical aids, and it is what an inspector cites when a vibrator is badly mounted, when the impact plate is unguarded, or when the equipment is fed from an unfiltered air line.

Relevance: Everything that happens after delivery.

Source: eur-lex.europa.eu

Danish law · Parent act • In force

The Danish Working Environment Act — LBK no. 442 of 24 April 2026

The parent act on which every Danish regulation below depends. Section 45(1) states that machines and technical aids must be designed and used so that they are fully safe in terms of safety and health. Subsection 2 adds that recognised norms and standards of significance for safety or health must be followed. That is an important sentence, because it makes a voluntary standard binding in practice. Section 38(1) requires work to be planned, organised and carried out in a fully safe manner. Note that this is a fresh consolidation; the previous one was LBK no. 2062 of 16 November 2021.

Relevance: The basis for every Danish requirement on installation and operation.

Source: retsinformation.dk

Danish law · Noise • In force

BEK no. 63 of 6 February 2006 — noise at work

BEK no. 63 transposes the Noise Directive into Danish law, but Denmark is stricter than the EU on the decisive point. Where the EU sets an exposure limit value of 87 dB(A), the Danish regulation states a direct prohibition: no one may be exposed to a noise level above 85 dB(A) or to impulse peaks above 137 dB(C). The lower action value is 80 dB(A) and a peak of 135 dB(C). Set against a PS hammer at 125 dB(A) or a PG air cannon at 105 dB(A), that is not a marginal question, but something to be solved through enclosure, silencers, placement or a different product choice.

Caveat: The wording is confirmed in the consolidated text published by the Danish Working Environment Authority, but we have not established the section number for the 85 dB(A) provision. Cite it without a section reference until someone has checked.

Relevance: Danish ceiling of 85 dB(A), lower than the EU's 87.

Source: at.dk

Danish law · Vibration • In force

BEK no. 682 of 30 June 2005 — vibration at work

BEK no. 682 transposes the Vibration Directive, most recently amended by BEK no. 1882 of 19 December 2023. The values are the same as in the directive, that is 2,5 m/s2 as the action value and 5,0 m/s2 as the limit value for hand and arm, and 0,5 and 1,15 m/s2 for whole body. There is no Danish tightening here, unlike the noise area where Denmark sits below the EU level.

Relevance: Same figures as the EU. No Danish tightening.

Source: at.dk

Danish law · ATEX assessment • In force

BEK no. 478 of 10 June 2003 — work in explosive atmospheres

BEK no. 478 transposes the ATEX workplace directive. It requires a written ATEX risk assessment before work begins in areas where an explosive atmosphere may arise. The assessment must cover the likelihood and duration of the atmosphere, the likelihood of ignition sources, the equipment and processes involved, and the expected consequences. Zone classification is cross-referenced to the separate classification regulation. This is the rule a Danish silo customer is actually audited against.

Relevance: The customer's documentation, before equipment may be fitted.

Source: retsinformation.dk

Danish law · ATEX products • In force

BEK no. 811 of 3 June 2022 — products for explosive atmospheres

The Danish Safety Technology Authority's transposition of the ATEX equipment directive. The regulation expressly covers all ignition sources, electrical as well as non-electrical, which is precisely the distinction that makes purely pneumatic vibrators ATEX equipment in their own right. Note the split of authority, which often causes confusion: ATEX products sit with the Safety Technology Authority, while ATEX workplaces sit with the Working Environment Authority. Two authorities, two rule sets, the same silo.

Relevance: Confirms that non-electrical equipment is also ATEX equipment.

Source: retsinformation.dk

Danish law · Use • In force

BEK no. 428 of 5 April 2022 — use of technical aids

BEK no. 428 transposes the work equipment directive. Section 1 states that the regulation applies to any use of technical aids. It replaced the old BEK no. 1109 of 15 December 1992 together with the rules on hoisting gear, centrifuges, driver guards, chip silos and construction site lifts. That is worth knowing, because a good deal of Danish trade literature still cites 1109 from 1992. The companion rule on design is BEK no. 429 of the same date.

Relevance: Installation, inspection and maintenance in service.

Source: at.dk

Danish law · Pressure vessels • In force

BEK no. 1977 of 27 October 2021 — use of pressure equipment

The Danish Working Environment Authority's rule on the use of pressure equipment, as distinct from the Safety Technology Authority's rule on its design. Applies to equipment containing vapours or gases at a pressure above 0,5 bar. Equipment in control classes A and B must undergo installation inspection before commissioning and periodic inspection thereafter, classified by the product figure, that is bar times litres. The air cannon itself is small, but a silo installation with ten or fifteen cannons is fed from an air receiver on site, and that receiver is clearly in scope.

Relevance: The air receiver supplying the air cannons.

Source: retsinformation.dk

Every entry was checked against the stated source on 2 August 2026. — wiki.json · llms.txt