Nitrogen and CO2” mixes are widely used for Beer Dispensing.

PureMix 55C is a mixture of  55% Carbon Dioxide  gas with 45% Nitrogen gas for dispensing all beer types & certain stout beers.

Carbon dioxide makes up only 0.0415% of the air we breathe, (or 415 p.p.m. (parts per million.)) & has varying effects as the % concentration in air increases.

As with all the gases in the air we breathe, Carbon dioxide is colourless and odourless gas. Additional Carbon dioxide is exhaled due to the bodie’s metabolic activities.

It is largely inert and is neither flammable nor supports combustion & is used in some fire extinguishers.

At a density 1.87 kg/m3 (1.55 relative to air at normal atmospheric conditions) it is markedly denser than air so it is potentially extremely dangerous if inadvertently released in a cellar.

Application

  • Dispensing all beer types & certain stout beers

 

 

 

 

Product Overview

Nitrogen and CO2” mixes are widely used for Beer Dispensing.

PureMix 55C is a mixture of  55% Carbon Dioxide  gas with 45% Nitrogen gas for dispensing all beer types & certain stout beers.

Carbon dioxide makes up only 0.0415% of the air we breathe, (or 415 p.p.m. (parts per million.)) & has varying effects as the % concentration in air increases.

As with all the gases in the air we breathe, Carbon dioxide is colourless and odourless gas. Additional Carbon dioxide is exhaled due to the bodie’s metabolic activities.

It is largely inert and is neither flammable nor supports combustion & is used in some fire extinguishers.

At a density 1.87 kg/m3 (1.55 relative to air at normal atmospheric conditions) it is markedly denser than air so it is potentially extremely dangerous if inadvertently released in a cellar.

Application

  • Dispensing all beer types & certain stout beers

 

 

Hazards

Carbon Dioxide at this high concentration acts largely as an asphyxiant and must not be inhaled.

Carbon dioxide is largely  inert & non-toxic & non-flammable, so from the point of fires is relatively safe.

Carbon Dioxide at this high concentration  is “Not just an asphyxiant!” but has Physiological Hazards.

(See EIGA, “Info 24/17 which is a free download.)

When accidentally released in say a beverage cellar, it can be particularly nasty & can be fatal.

 

 

Cylinder Sizes

Specifications

D

F

G

Contents weight (m3)

1.6

6

8.3

Cylinder water capacity (L)

10

40

50

Cylinder colour

Green Grey Body/Pewter top

AS 2473 Type 30

Cylinder Valve Outlet Type

 

Slight variations in the dimensions & weight of the cylinder can be expected due to manufacturing tolerances.

The volume of the contained gas  in the cylinder will be as specified in  the above table.

Important information

    Cylinder handling and storage

    • Make sure the cylinder is equipped with the correct regulator and end connectors with appropriate pressure ratings.
    • Inspect the regulator and cylinder valves for grease, oil, dirt, and solvent. Never use grease or oil to lubricate regulators or cylinder valves as this will contaminate the gas.
    • Open (Anti clockwise looking down at the hand wheel, directional arrows are on the hand wheel.) or close a cylinder valve (Clockwise looking down at the hand wheel, directional arrows are on the hand wheel.) by hand (Too much closing torque can damage the cylinder valve seat.) using moderate torque to open or close them. Only use set spanners or specific tools that are provided by the cylinder supplier to connect accessories. Multi-grips should never be used. Some regulators require a sealing washer in or on the inlet spigot. Check that this is present before fitting the regulator to the cylinder valve outlet
    • Gas cylinders (particularly G & E size) are unstable & must be stored in pallets or racks when not in use & secured when in use by a strap or chain against a wall or secured by a suitable trolley with chain or strap.
    • Use appropriate materials for chains. e.g. plastic coated wire cable, commercial straps, with tensioners,… etc., to secure cylinders.
    • Gas cylinders should not be stored in public hallways or other unprotected areas
    • Store out of direct sunlight and away from sources of heat and ignition; temperatures must not exceed 50 °C.
    • Where cylinder caps are fitted to cylinders (i.e. instead of Cylinder Valve guards.) refit these cylinder valve caps to the Cylinder thread when the cylinder is not in use.
    • Cylinders should be protected from damage. Do not store cylinders near elevators or gangways, or in locations where heavy-moving objects may strike or fall on them or knock the cylinder over.
    • Cylinders must be stored on surfaces such as suitably drained concrete to prevent the base of the cylinder from rusting from standing in puddles for long periods. Cylinders should be stored, secured in premises to protect them from theft & against tampering by unauthorized individuals.
    • Storage areas must be well-ventilated, cool, dry, and free from corrosive materials.

    Handling leaks

    • Wear gloves as rapid expansion of either liquid or Gaseous CO2 can produce very low temperatures & result in cold burns when trying to close the Cylinder Valve to stop leaks. If closing the cylinder valve tightly does not stop the leak, then relocate the cylinder to a safer well ventilated or outdoor location to allow the venting gas to escape & not build up.

     i.e. Per Puregas Safety Guidelines.

    • Do not enter an area with high gas leakages without proper PPE or safety equipment.
    • Approach the leak only if qualified to do so.
    • Use readily available techniques like the soap bubble method to detect the leak.
    • Return the empty cylinder if the leak persists or after the gas has been safely vented.
    • Make sure the cylinder is properly tagged indicating the nature, location & date of the leak together with a contact name & phone number for follow up by the gas supplier.
    • Contact emergency services if either suitably trained staff are available to cope with the situation or the situation is not in control and injury appears likely.