Are VEQA airless pump bottles compliant with EU PPWR 2026 regulations?

Yes. VEQA produces 100% mono-material PP airless dispensers and metal-free spring pumps engineered for mono-stream recycling, fully complying with European PPWR sustainability standards.

How does VEQA guarantee zero leakage during high-altitude air freight?

Every batch undergoes rigorous automated vacuum chamber testing at -0.08 MPa for 15 minutes to guarantee air-transit integrity and oxidation prevention.

What is the standard production lead time and sampling policy?

Existing stock sample kits are dispatched within 48 hours worldwide. Standard mass production lead time is 25 to 30 working days upon sample approval.

360-Degree Inverted Spray Valves: Weighted Ball Dip Tubes Vs. Bag-on-Valve (BoV) Mechanics

# 360-Degree Inverted Spray Valves: Weighted Ball Dip Tubes vs. Bag-on-Valve (BoV) Mechanics

TL;DR — A sprayer works only when its dip tube can reach liquid, and an upright pump quietly leaves the last charge in the bottle.

The catalog side is fully recorded: trigger sprayers (19 catalog models, 0.22–1.35 ml per stroke, ±15%), lotion pumps (59 catalog models), fine-mist sprayers (2 models on 18/410 + 18/415), and perfume atomizers (14 catalog models), with dip tube, ball, spring, and gasket/seal as recorded components.

The key boundary: no inverted-spray model is recorded in the catalog; the mechanism is a project-level configuration. The weighted-ball and bag-on-valve routes below are engineering guidance, with spray-pattern and dosage/output testing as the verification hooks.

Why: The Last Charge Is the Hard One

Upright spraying runs out early. A conventional dip tube floats above the bottle bottom by a clearance, so the final portion of liquid sits out of reach; the last charge is the hardest one to deliver, and inverted use exists to reach it.
Three routes, one goal. An inverted pick-up geometry, a weighted ball that keeps the intake in the liquid, and a bag-on-valve structure that pushes the product out independently of bottle angle — each fixes the same intake problem differently.
The catalog anchors the pumps and the parts, not the mechanism. The spray families and the dip tube, ball, spring, and gasket/seal components are on the record; the inverted arrangement itself is not.
Verification decides the route. The recorded hooks — spray pattern and dosage/output testing — are where an inverted configuration is proven on the actual fill.
Boundary: no inverted-spray model is recorded in the catalog; the mechanism is a project-level configuration. Nothing below is a catalog offer.

How: Three Ways to Reach the Bottom of the Bottle

3.1 The intake problem, restated

Every spray configuration in this article is judged on one question: when the bottle is near empty, or pointed down, does the intake stay in liquid? A conventional suction path draws from the tube end's clearance point; when that point is above the liquid level, the pump strokes air. Inverted use moves the intake decision — and therefore the pump's usable output — to the intake geometry instead of to the bottle's floor.

3.2 Route one: inverted pick-up geometry

The first route changes the tube itself: the pick-up path is arranged so the intake sits where liquid collects when the bottle is inverted or fully discharged. The dip tube is a recorded component of the spray families, and the practical degrees of freedom — tube curl, tube length, and the clearance between the intake and the container wall — are covered by the family insights on dip-tube behavior. Every dimension here is a project value: no tube length, curl angle, or clearance number is published.

3.3 Route two: the weighted ball dip tube

The second route adds a ball to the intake end. A free ball inside the pick-up end rolls or settles with gravity, so the intake port keeps riding against whatever liquid remains — the geometry follows the liquid level instead of the bottle's attitude. The ball is itself a recorded component on the spray-family programs, which is what makes the route natural to discuss; the weighted arrangement is not a recorded model-level feature. Ball mass, ball diameter, gasket seat details, and the spring behavior in the inverted position are design decisions configured per project — the mechanism is guidance, and no value for any of them is a program fact.

3.4 Route three: bag-on-valve (BoV)

The third route removes the intake question entirely: the product is sealed in a flexible bag inside the container, and a charge outside the bag drives it out, so delivery does not depend on bottle angle or liquid level. BoV changes the package structure — bag, valve, charging regime — rather than the tube. It is also structurally outside this program's catalog: no bag, no BoV valve, and no bag-on-valve package is recorded in the catalog. No bag-specific parameter is published here — no charge pressure, no liquid-to-gas ratio — and a BoV project needs its own structure confirmation and validation, per project.

<pre class="language-mermaid"><code>flowchart LR

A[Spray families trigger 19 · lotion 59 fine mist 2 · atomizer 14] –> B[Output windows 0.22–1.35 ml ±15% · 0.13–4.00 0.13 ml · 0.05–0.13]

B –> C[Inverted-spray mechanism no recorded model project-level configuration]

C –> D{Intake route guidance}

D –>|Weighted ball dip tube| E[Ball rides at intake geometry follows liquid level]

D –>|Bag-on-valve| F[Product sealed in bag charge drives the bag]

E –> G[Spray pattern test capability-level]

F –> G

G –> H[Dosage / output test capability-level]

H –> I[Release per project]

</code></pre>

3.5 The families that carry the topic

The program registers four spray families, and the inverted conversation sits on top of them:

Trigger sprayers — 19 catalog models, measured output across 0.22–1.35 ml per stroke (±15%), with a model record at 1.30 ml per stroke (±15%) on 28/400 and 28/410 neck finishes; the family also records neck finish rows at 20/410, 24/410, and WAX;
Lotion pumps — 59 catalog models, recorded output range 0.13–4.00 ml;
Fine-mist sprayers — 2 catalog models at 0.13 ml output, on 18/410 and 18/415;
Perfume atomizers — 14 catalog models, recorded output range 0.05–0.13 ml.

The family numbers are the program's evidence that the pumping platform exists in the needed output range; they are measurements of upright, in-family configuration, not promises about an inverted build. Pairing any of them with an inverted arrangement is a project decision that starts from these numbers and ends at the verification hooks.

3.6 Verification: the pattern and the dose, per project

Two recorded capabilities close the loop: the spray pattern test, which asks whether the inverted build still forms a usable pattern at the angles that matter, and the dosage/output test, which asks whether the stroke still measures what the catalog window promises. Both are capability-level — no pattern size, no droplet specification, no tolerance is published — and both run against the project's actual fill, orientation, and target. The inverted transition is the interesting case: a configuration that sprays well upright can degrade as the bottle tilts, so the pattern evaluation is designed across the orientation range the product will actually use.

<pre class="language-mermaid"><code>flowchart LR

P[Dose must reach the last charge inverted use] –> Q{Mechanism configured per project}

Q –>|Weighted ball dip tube| R[Ball rides at intake gravity-charged pick-up]

Q –>|Bag-on-valve| S[Bag structure outside catalog own confirmation + validation]

R –> T[Intake geometry / clearance per project]

S –> T

T –> U[Spray pattern + dosage on actual fill at target angles]

U –> V[Release per project]