HVAC-R (Heating, ventilation, air conditioning and refrigeration)
The installation, maintenance and servicing of HVAC and Refrigeration systems is now a highly important activity to support our every day existence. Energas offers a wide range of gases and equipment to support the HVAC and Refrigeration industry and community. Whether you are installing a new system, retrofitting new products to an old system, maintaining and or servicing, Energas can support you with your operational requirements.
Energas, as experts in gas applications, have developed a range of gases based on customer needs to support you whilst going about your daily tasks for HVAC R installations, servicing, maintenance and repair.
Key factors have all been taken into account when building our gases and equipment range to suit the HVAC and Refrigeration market and its operating requirements:
- Product suitability
- Ease of use
- Plug and Play
- Cylinder portability
- Readily accessible products from our depots and network of Agents
Products and Services designed to meet the needs for HVAC and Refrigeration backed up by high standards of delivery through our direct and indirect network of distribution points:
Industrial Gases for a range of HVAC R applications:
- Nitrogen for pressure testing, pressurisation, blanketing and inerting
- Nitrogen and Hydrogen Mixtures for leak testing
- Helium for leak testing
- Oxygen and Fuel Gases (Acetylene, Propane) for brazing
- ARCAL™ Welding Gases
- Jetfreezer™ Pipe freezing kit and cylinders
- Gas Equipment including Regulators, Hoses and Flow Meters
- Personal Protection Equipment - Safety shoes and boots, overalls, goggles, safety glasses, gloves, welding/brazing helmets and many more items
- Gases Safety Training
- CO2 Fittings and Valves - from adaptors, unions and washers through to pipework and valves available from extensive stock range
Nitrogen
This is the gas most commonly used for purging and to pressure test systems prior to moving to next step of refrigerant charge. It can also be used as part of the servicing protocol following refrigerant recovery.
Modes of Supply for Nitrogen:
- Single cylinders in a range of sizes and pressures (200 and 300 bar) are available:
- 10L
- 20L
- 47L
- 50L
- Cylinder packs for higher volume users :
- 14 x 47L cylinders @ 200 bar
- 16 x 50L cylinders @ 230 bar
- 16 x 50L cylinders @ 300 bar
- For Pure Nitrogen High Pressure Skid tanks are available (3000 litre capacity) and can be combined with cylinders or cylinder packs to provide On site mixing also over and above pure gases needs
- Standard Bulk Tanks of 10,000 litres and above available
5% H2 in N2 for Leak Testing
This mixture is very commonly used, is non-flammable, non-toxic, safe for the environment and is compatible with a standard Nitrogen regulator. When appropriate leak detection equipment is used it is capable of identifying much smaller leaks than OFN and or a leak detection spray:
- As Hydrogen is a very small molecule it can move very quickly through the refrigeration system and rapidly locate leaks
- This mixture is up to 100 times more sensitive than a leak detection spray and can detect very small leaks of less than 5 grams per year
- Improves accessibility as can enable testing of all system areas even insulated or difficult to access pipe work where leak detection sprays cannot easily be used
- Quicker tests, reduces time on site giving greater productivity l Reduction in cost by avoiding retest and or rework.
Modes of Supply for Leak Testing Gases (5% Hydrogen in Nitrogen, 10% Hydrogen in Nitrogen):
- Single cylinders in a range of sizes and pressures at 200 bar are available:
- 10L
- 47L
Pure Helium and Nitrogen/Helium Mixtures
Gas mixtures containing Helium allow for more sensitive and accurate leak detection than a simple pressure test and can provide the following benefits:
- Safe and easy to use as this mixture is inert and non-flammable.
- It is also readily compatible with all standard pressure testing equipment, including Nitrogen regulators
- Enhanced detection rates, as this mixture can detect far smaller leaks due to the size of the test gas molecules.
- Helium molecules are far smaller than Nitrogen molecules and can more easily detect small leaks in a refrigeration system
- Cost effective as this leak detection gas will reduce the quantity and the cost of call-outs.
Modes of Supply for Helium and Helium Mixtures:
- Single cylinders in a range of sizes and pressures (200 and 300 bar) are available depending on pure helium or mixture selected:
- 10L
- 20L
- 47L
- 50L
- Cylinder packs for higher volume users :
- 16 x 50 litre cylinders @ 230 bar
- 16 x 50 litre cylinders @ 300 bar
- For Pure Helium small scale bulk tanks and dewars are available
- Standard Bulk Tanks of 10,000 litres and above available
Brazing
Gases for brazing are often required for HVAC R systems to enable the HVAC R technician to join pieces of pipework together. Commonly used gases are Oxygen and Acetylene and sometimes Propane can be used for the brazing of certain materials.
Modes of Supply for Brazing Gases (Oxygen, Acetylene and Propane):
- Oxygen:
Single cylinders in a range of sizes and 200 bar pressure are available:- 10L
- 20L
- 47L
- Acetylene:
Single cylinders in a range of sizes and product weights are available:- 10 litre - 1.7kg
- 50 litre - 9.4kg
- 58 litre - 9.4kg
- Propane:
Single cylinders in a range of sizes and product weights are available:- 3.9kg
- 6kg
- 11kg
- 12.7kg
- 19kg
- 47kg
Pipefreezing
Jetfreezer™ offers a fast simple method of freezing metal and water based systems pipework up to 100 mm in diameter by injecting CO2 into a specially designed pipe jacket. Allowing you to safely and easily carry out work on pipework/plumbing systems without the need to drain the system. Once the pipework is frozen, the long working time of 45 minutes can easily be extended by adding more CO2.
JetfreezerTM (Carbon Dioxide) cylinders:
- Single cylinders in a range of sizes and product weights are available:
- 6.35kg
- 9kg
Meeting HVAC-R Industry Challenges
The HVAC and Refrigeration Industry and its contractors faces challenges on a daily basis such as:
- Meeting response times
- Access to products to suit repair and maintenance needs
- Environmental issues
- Pressure for Energy Efficiency improvements
- Compliance
- Consumer demands for improved sustainability
- Move to smaller charge sizes and reduction in leak rates
- Requirement for improved competencies for Refrigeration and Air Conditioning engineers via more in depth and intense training programs
- Stricter control on record keeping for systems and personnel involved with HVAC and Refrigeration
Our experience and product offers cover everything you need for your daily HVAC R tasks. As Safety comes first with Energas, you can also rely on us for gases safety training and advice on health, safety and environmental compliance.
HVAC Equipment & Consumables
-
Brazing rods
Brazing rods are filler materials used in the brazing process which is a joining technique that involves melting the filler metal to bond two or more metal su ...
-
Gas Regulators
A wide range of welding gas regulators is on offer here, including single-stage, multi-stage, Nevoc and high pressure regulators for a range of gases such as ...
-
Gas Hoses
Gas hoses are flexible hoses specifically designed for the transportation of gases. They are commonly used in various applications including home use, industr ...
-
TIG Welding Rods
Our extensive welding rods collection including mild steel TIG rods, stainless steel welding rods and aluminium TIG welding rods, ensuring all applications ar ...
-
PPE & Workwear
Choose from a wide range of PPE & workwear including welding gloves, welding helmets, overalls, eye protection, hearing protection and much more.