Gas mixer for beer filling and dispensing KM 20-2 20-1 ECO

In order to keep beer fresh longer, the beverage is often processed under a "jacket" of inert gas such as CO2 or nitrogen or a mixture of both. WITT gas mixers supply you with between approx. 50 and 500 m³ of mixed gas per hour with flexible mixing ratios between 0 - 100%.

Mixer specially designed for use in beverage dispensing systems. 
This mixer is used to produce 1 or 2 preset mixtures of carbon dioxide
(CO 2 ) and / or nitrogen (N 2 ), which are used for beverage dispensing.

Please inform us after the purchase the mixing ratio between Co2 and N2 with e.g. 60:40
(for this simply reply to the order confirmation)

Advantages:

- Avoidance of carbonation (reduces product loss, saves money and time)
- optimal adaptation of the Co2 content to the beverage
- cost saving, as no stockpiling of different premixes is necessary
- easy handling due to preset mixtures (no unintentional mixture adjustment)
- purely pneumatic operating principle, no power supply necessary
- auto-stop of mixture production in case of supply failure of a gas
- robust, compact design
- assembly compatible with other commercially available systems

Technical data
Type: Km 20-1 ECo, Km 20-2 ECo

Gases: Carbon dioxide (Co2), nitrogen (N2),  not suitable for fuel gases

proportioning ranges: 10 - 85 vol% Co2, 2 proportioning ranges preset

mixing precision: ±2 %

gas inlet pressures: min. 5.5 bar - max. 10.0 bar (the N2 pressure must not be more than 0.5 bar lower than the Co2 pressure)

gas outlet pressure: min. 3.5 bar, max. 8.0 bar (depending on gas inlet pressure)

Mixed gas flow rate (air): 0.4 - 40 l/min, continuously variable, without downstream expansion tank (at a gas outlet pressure of 3.5 bar, a maximum flow rate of at least 40 l/min is achieved)

Temperature (gas/environment): -10 °C to +50 °C

Gas connections: Push-in connection for hose AD 8 mm (5/16") optional AD 6.35 mm (1/4")

Material: Housing: anodized aluminum Built-in parts: Anodized aluminum, brass, stainless steel, elastomers

Weight: approx. 1.6 kg

Dimensions (hxWxD): approx. 110 x 87.5 x 60 mm (without connections)

Standards/building regulations: Company certified according to ISO 9001 and ISO 14001 Type approval mark SK 385-001