In-line beverage carbonation control · CO₂ injection into a dissolution tube with static mixers, in-line CO₂ measurement and closed-loop dosing, measuring range and dosing accuracy, blending, O₂ monitoring
An automated carbonation control system dissolves CO₂ into a beverage stream and holds the CO₂ content at a set value by measuring it in line and correcting the dose. Ask three things first: what CO₂ range and accuracy the product needs, what flow and pressure the line runs at, and whether blending, deaerated water or oxygen monitoring must be integrated.
In-line, skid-mounted carbonation and carbonation-plus-blending systems with CO₂ dosing, dissolution and in-line measurement for beer, soft drinks and other beverages. CO₂ recovery and generation plants, liquid CO₂ storage tanks (see CO₂ storage tank), deaerators (see deaerator) and fillers are outside this page except where integrated.
CNFX editorial research · Sources checked October 11, 2026 · 5 sources
Pentair describes its Carbo Controller as injecting CO₂ at the inlet of a dissolution tube, where a set of static mixers engineered for the process conditions disperse and dissolve it bubble-free; an in-line CO₂ meter (type AuCoMet-i) determines the CO₂ content and immediately adjusts the dosing rate, communicating with the CO₂ dosing block through embedded software or PLC control, while the CO₂ and optionally O₂ values are also available for quality monitoring. [1]
On its carbonation and blending page Pentair adds that the in-line meter continuously measures CO₂ and adjusts dosing in real time, and that its Carbo Blender combines PLC-controlled blending (water-to-beer ratio with automatic correction of original gravity or alcohol content) with the same dissolution and dosing, integrating with membrane filtration and water deaeration for high-gravity brewing. [3]
Give the supplier the beverage type, CO₂ target and tolerance, product flow range and line pressure, temperature, whether blending or nitrogenation is needed, O₂ monitoring, control system and communication protocol, skid size limits, materials and hygienic requirements.
02
Specify measuring range, accuracy, materials and options
Pentair's Carbo Controller (CCR) technical data list a CO₂ measuring range of 2.0–9.99 g/l, optional O₂ measurement of 0.0–2,000 ppb, dosing accuracy of ±0.1 g/l, AISI 316 product-contact parts and AISI 314/ABS non-contact parts; scope of supply is a skid-mounted dissolution tube, static mixers, CO₂ dosing block, in-line AuCoMet-i meter and manual, with options for a pressure control loop, constant pressure valve, PLC, booster pump, communication extension and O₂ measurement. [1]
The Carbo Blender (CBR) adds an original-gravity measuring range of 0–20 °Plato, blending tubes, high-gravity beer and water flow meters, a water flow control valve, PLC blending control, an IP54 control cabinet and options including nitrogenation and Profibus communication. [2]
Editorial calculation: ±0.1 g/l is 5% of the 2.0 g/l bottom of the range and about 1% of the 9.99 g/l top. [1]
03
Compare published carbonation ranges, accuracy and capacity
Three makers publish enough data to line up the numbers a buyer has to fix. SIPA's Carbo-SD feeds CO₂ through a modulating valve and a mass flow meter into a diffuser and static mixer, lists a carbonation range of 1.5–4.5 V/V, a CO₂ dosing accuracy of ±0.05 g/l or better in steady conditions, Cpk above 1.33 on the final product, outflow rangeability of 1:4 and six models from 12,000 to 66,000 l/h. [4] Bucher Unipektin's Inline Carbonation Automatic Unit uses an injector without static mixer, an in-line CO₂ analyser feeding a PLC, a control valve and a back pressure valve, and lists carbonation up to 6 g/l, 3 V/V (pressure and temperature dependent), operating pressure 2–5 barg, operating temperature 0–5 °C, CIP up to 90 °C, Tri-clamp connections, stainless steel 304 with EPDM, PSU and PP, and models from 20–50 hl/h (DN 40) to 400–1000 hl/h (DN 150). [5]
Editorial calculation: SIPA's 12,000–66,000 l/h equals 120–660 hl/h. Using Bucher's own equivalence of 6 g/l to 3 V/V (about 2 g/l per volume), SIPA's 1.5–4.5 V/V is roughly 3–9 g/l, which sits inside Pentair's 2.0–9.99 g/l measuring range. SIPA's ±0.05 g/l is half of Pentair's ±0.1 g/l dosing accuracy, but SIPA qualifies its figure as steady-state, so ask each supplier for dosing accuracy at your start-up, flow-change and stop conditions. [4][5][1]
Editorial note: each Bucher model covers a 2.5:1 flow span (for example 20–50 hl/h), against SIPA's stated 1:4 rangeability; size the unit so your lowest and highest line rates both fall inside one model's span. [5][4]
Dosing accuracy, dissolution pressure and CIP to settle with a carbonation supplier
Pentair, SIPA and Bucher Unipektin publish the ranges compared above; a quote from any listed maker should state the same figures for your product flow and line pressure.
Ask any supplier for the CO₂ measuring principle, range and accuracy, dosing accuracy at your flow, dissolution design and pressure, flow range, materials and surface finish, CIP compatibility, control system, communication protocols, utilities and footprint.
05
Dosing block, dissolution tube, CO₂ meter, blending section and PLC
Carbonation range, flow, accuracy and cabinet rating for a carbonation quote
Pentair's 2.0–9.99 g/l range, ±0.1 g/l dosing accuracy and AISI 316 product contact are the published values that fill this table; flow, temperature, power and weight are not stated in the reviewed sources. [1]
Find automated beverage carbonation control system manufacturers
3 companies list this product among what they make. Company figures are quoted from each
company's own website; every card states where the relationship came from.
Zhangjiagang Beverage Machinery Co., Ltd.
Manufacturing site to be confirmed for the order
Its website has a product page for automated beverage carbonation control system.
Product scope checked 2026-10-12
Product page on own website · profile compiled by CNFX from public sources
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
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Compiled and source-reviewed by the CNFX editorial team.
Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review
· Page last updated 13 October 2026
Buyer questions
How is CO₂ dissolved in an in-line carbonation system?
Pentair injects CO₂ at the inlet of a dissolution tube where static mixers disperse and dissolve it. [1]
How accurate is automated CO₂ dosing?
Pentair lists ±0.1 g/l dosing accuracy over a 2.0–9.99 g/l measuring range for its Carbo Controller. [1]
Can carbonation be combined with blending?
Pentair's Carbo Blender combines PLC blending with original-gravity measurement and carbonation in one skid. [2][3]
How accurately can an in-line system dose CO₂?
Pentair lists ±0.1 g/l dosing accuracy for its Carbo Controller, and SIPA lists ±0.05 g/l or better in steady conditions for its Carbo-SD; Bucher lists carbonation up to 6 g/l (3 V/V) without a numeric accuracy. [1][4][5]
Sources and what still needs a direct check
Sources checked 2026-10-11. Pentair (Haffmans) builds in-line carbonation, blending and CO₂ measurement systems and publishes sales sheets; SIPA's Carbo-SD page and Bucher Unipektin's Inline Carbonation Automatic Unit page give further published ranges, accuracy and capacities.
