Technical file · R0

Not a claim, an acceptance criterion

“Durable” is not a marketing line but a claim that has to be verified. The protocol below will be an annex to the contract-manufacturing agreement: a batch that fails the acceptance criterion is rejected.

Bayonet connection — **Concept render**Bayonet lock: channel, pin and the FKM seal beneath.

Shared architecture — identical on all three models

This is where the commercial logic of the family sits. These six details are identical across the range; differentiation is limited to size and finish.

Bayonet connection

No threads between body and bottle or body and bowl. A three-channel bayonet locking in a quarter turn. Fitted and removed one-handed, with no risk of stripping a thread.

3 × 90° · FKM O-ring

Monoblock stem

Body and immersion stem are machined as a single part. With no weld and no threaded joint, the classic leak point is entirely absent.

Ø16 mm (C/H) · Ø14 mm (T)

Diffuser tip

Eight radial holes at the end of the stem. Smaller bubbles, lower draw noise and lower draw resistance.

8 × Ø2,5 mm

Diaphragm purge

A silicone diaphragm instead of a ball valve, designed to run silently, resist clogging and come out for washing. In café use the ball valve is classically the first part to fail.

LSR ⌀ 32 mm

Measured draw resistance

Draw resistance is measured per model and printed on the technical sheet. Almost no competitor publishes this figure — in the upper segment it is the cheapest way to build technical trust.

Full strip-down

Seven parts without tools; all parts are intended to be dishwasher safe.

7 pcs · 70 °C

Full strip-down — **Concept render**The seven parts that separate without tools.

Bottle material elimination

The impact-resistance target decided the bottle material on its own. Five candidates were assessed.

Material	Impact resistance	Continuous heat	Clarity	Decision
Borosilicate glass	Brittle	400 °C	Excellent	Out — brittle
Tritan copolyester	Very high	~100 °C	Glass-like	Selected
Polycarbonate (PC)	Very high	~115 °C	Good	Out — BPA perception
SAN / acrylic	Low	~80 °C	Good	Out — crazes, scratches
304 stainless	Very high	800 °C	None	Backup — water not visible

Continuous-heat figures are approximate ranges for the material family; they will be confirmed against the final supplier's technical data sheet.

Why Tritan

The only sensible option that combines the clarity of glass with impact resistance. BPA-free, withstands 70 °C dishwasher cycles, arrives with food-contact certification. Its one known risk is flavour retention: series production will not begin before a blind odour panel is run after fifty wash cycles.

The other parts that break easily

Part	Conventional solution	NARION solution	Gain
Bowl — café / home	Clay, phosphate ceramic	Cordierite technical ceramic, 5 mm wall	High thermal-shock resistance, does not crack when dropped
Bowl — travel	Clay	LSR silicone, high-temperature grade	Flexible; deforms instead of breaking on impact
Hose	Leather, fabric wrap	Platinum-cured silicone, Ø12 mm bore	Washable, holds no odour
Hose tip	Plaster, resin	CNC aluminium body + silicone mouthpiece	Survives a drop, mouthpiece is replaceable
Sealing	Rubber grommet	FKM O-ring, 70 Shore A, Ø2.5 mm section	Does not age, food-contact grade, cheap to replace

Test protocol and acceptance criteria

This protocol has not been run yet — it will be executed alongside the pilot series (T2). When results exist they will be published on this page with the measured values.

Test	Condition	Acceptance criterion	Samples
Drop — travel	1.5 m, concrete, 3 axes, 10 repetitions	No breakage or leak; cosmetic marks accepted	5
Drop — café / home	1.0 m, concrete, bottle full	No breakage, bayonet lock still works	5
Tip-over	15° incline, full, hose hanging	Does not tip over on its own	3
Bayonet life	2000 full fit–remove cycles	No increase in lock play, no leak	3
Dishwasher	200 cycles, 70 °C, commercial detergent	No crazing or yellowing in Tritan, PVD intact	3
Flavour retention	Blind odour panel after 50 cycles	Previous flavour not detectable	3
Leak tightness	Pressure-hold test, 60 s	No measurable pressure drop	100%
Thermal — bowl	Continuous load at charcoal temperature, 20 cycles	No cracking, dimensional change negligible	5
Heavy-metal migration	Food simulant, accredited laboratory	Below the food-contact limits of the target market	Per batch

Coating decision

No paint and no chrome. In Gulf summer heat paint blisters and chrome peels. PVD (TiN / ZrN) does not scratch and does not fade under UV. This is a durability decision rather than an aesthetic one — coating thickness will be measured on every batch.

Material and finish palette

Nine finishes distributed across three models. A single product carries at most three at once: metal, coating, warm material. A fourth breaks the upper-segment feel.

Brushed stainless#B3B9BD · 304 · Ra 0,8

PVD champagne#C9A876 · TiN · 2–3 µm

PVD rose#BD8A72 · ZrN

Matte black PVD#2A2C2E · DLC

Gun metal PVD#4A5157 · CrN

Hard anodised#8E9396 · Tip III · 25 µm

Walnut#5C4033 · —

Olive wood#A8926B · —

Tritan — clear#CDDDE3 · —