Blowers, Boosters, Compressors and Noise Suppression
As 'low-pressure specialists’, Nu-Way Energy has a complete range of boosters, blowers, and compressors for natural gas, biogas and process air and gas applications. This equipment is used in such diverse applications as gas transfer, aeration, fluidisation, pressure boosting, high vacuum gas separation, a truck vacuum and pneumatic conveying. NWE has a solution for almost every industry and application.
Air Knives
At Nu-Way Energy, we're proud to offer a huge range of air knives and drying accessories to New Zealand businesses. Industrial Air Knives provide a continuous sheet of high-velocity air to strip moisture and debris. Numerous applications include drying bottles, cans, sachets, and steel products, removing excess food toppings and other quality enhancements such as smoothing chocolate toppings. A range of centrifugal blowers precisely matched to the air knives' requirements is available, as are all accessories, including hoses, splitters and mounting brackets. As part of the air knives family, circular air knives for drying rods, cables, tubes and extrusions are also available.
Power nozzles are an available solution where a stream of high-velocity air is required to remove moisture from difficult surfaces such as the concave underside of cylinders. Compressed air knives are an option for smaller applications with readily available air. Complete enclosures, which reduce noise and eliminate spray, can also be made available along with custom systems that can be engineered.
Compressed air knives, nozzles and fans are ideal for drying, cleaning, cooling, ventilating or extracting in all kinds of process, food and manufacturing applications. They use a small volume of compressed air and are quiet and affordable.
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Secomak's power nozzles are designed to complement the existing range of air knives. The Power Nozzle is powered by low pressure, high-velocity air from Secomak's range of fans and blowers, and is ideal for stripping liquids and particulate matter from various surfaces. The uniquely designed cast aluminium air cannon produces a tight stream of air which can provide effective stripping from surfaces up to 750mm from the exit. The Power Nozzle is particularly suited for use with complex shaped components and can be easily added to existing processes for use with conveyors using adjustable clamps.
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The Secomak air knife is the most efficient method of removing or controlling unwanted or foreign substances on any surface.
Versatile in applications, they can remove broken glass from the conveyor lines or dry and cool delicate glassine paper. They are powerful enough to dry the vehicle and sensitive sufficient to dry fine wire. Apart from industrial processing and manufacturing, air knives are also broadly used in bottling, canning and packaging industries for food and beverage production. Cleaning and drying fruit and vegetable is also done with their help.
Secomak Air Knives are more cost-effective than compressed air nozzles, saving up to 85% in running costs. They are easy to install and require minimum maintenance.
The Secomak air knife is available in two cross-sectional sizes, 75mm and 25mm. This is the diameter of the air entry spigot. The maximum length of the 75mm air knife is 2200mm, and the maximum length of the 25mm air knife is 500mm. Units over 1000mm length have air entry at both ends.
Modular air knife drying systems from Secomak are designed to fit over a client's own conveyor and guide system. They are used by food and beverage manufacturers to solve diverse drying problems, such as drying for date coding, label application, final packing, shrink sleeves, vision inspection, and drying ring pulls & seals. Metallic, glass and plastic containers (cans, tins, glass, bottles, and jars) can all be dried with these systems.
Powerstrip and Powerdry models are available.
Modular air knife drying systems are complete drying solutions. With the selection of high-velocity blowers, special acoustic enclosures reducing noise, and space-saving features, they offer high performance, energy savings (compared to compressed air systems), ease of use and reliability.
Blowers
Our HV Fans are specifically designed to deliver maximum performance, ensuring smooth air delivery across the whole performance curve.
Secomak blowers are specially designed to suit Air Knive Applications.
The Secomak range of high-velocity fans is designed to provide low volume, high-pressure airflow up to 48 in.wg at 900m³/hr. Each model has variations for higher pressure or volume requirements - see the brochure for more details.
Gas Boosters are designed to raise the pressure of gas supplies to provide sufficient combustion or use smaller sizes for pipework and valves, etc. Based upon centrifugal fan designs, they give a high performance from a small physical size. They occupy less space and have lower power consumption than equivalent direct drive boosters, and our latest designs have lower noise levels. Secomak gas boosters have been leading the market for over 40 years across many industries worldwide.
- Atex Compliant to Zone 1
- High Efficiency
- Oil Free
- Low Noise Level
- Vibration-Free Running
- Easy Maintenance
- Long Life
- Large Flow Rates
Specifications
Design
- Centrifugal - Blower, Exhauster and Gas Booster
- Single or two stages (with two machines)
- Stainless steel anti-surge impellers - to reduce torque and vibration
- Mechanical shaft seal and constant level oil device
Arrangement
- Baseplate Mounted - V Belt Driven
- Treated Internals - for corrosion resistance
- Stainless Steel Shaft - for corrosion resistance
- Gas Seals - to ensure gas tightness
- Packaged to IGE/UP/2 or customers' specific requirements
- Zone-rated motors - to complete ATEX compliance
Applications
Air, Landfill Gas, Bio Gas, Natural Gas and certain other corrosive and non-corrosive gases
| PRESSURE | FLOWRATE | VACUUM |
|---|---|---|
| To 120 mBar | 50-1600m³/hr | 80mbar |
- Atex Compliant to Zone 1
- High Efficiency
- Oil Free
- Low Noise Level
- Vibration-Free Running
- Easy Maintenance
- Long Life
- Large Flow Rates
Specification
Design
- Centrifugal – Blower, Exhauster and Gas Booster
- Multi Stage
- Aluminium Impeller
- Aluminium Insterstage Casings
- Balanced Impellers – to reduce torque and vibration
Arrangement
- Baseplate Mounted – vee belt driven
- Treated Internals – for corrosion resistance
- Stainless Steel Shaft – for corrosion resistance
- Gas Seals – to ensure gas tightness
- Packaged to IGE/UP/2 or customers' specific requirements
- Zone-rated motors – to complete ATEX compliance
Applications
- Air, Landfill gas, Biogas, Natural gas and certain other corrosive and non-corrosive gases.
| Pressure | Flowrate | Vacuum |
|---|---|---|
| To 1030 mbar | 50 - 5000m³/hr | 770 mbar |
- Atex Compliant to Zone 1
- Continuous Running at:
- Zero Conditions
- Full Load Conditions
- Robust Construction
- Cool Running
- Compact Design
- Low Noise Level
- Easy Maintenance
Specification
Design
- Centrifugal – Gas booster and exhauster
- Aluminium or Stainless Steel Impeller
- Aluminium Interstage Casing
- Aluminium Housing
- Seal Arrangement – for bearing and shaft protection
- Bearing Arrangement – fully enclosed for protection against gas
Arrangement
- Baseplate Mounted – vee belt driven
- 1 – 5 Stages – for increased pressure
- Duty/Standby
- Packaged to IGE/UP/2 – or particular customer specification
- Acoustic/Weather Proof Enclosures
- Control Panel
- Zone Rated Motors – to complete ATEX compliance
Applications
- Air, Natural gas, Landfill gas, Bio gas, as well as many other gases
| Pressure | Flowrate | Vacuum |
|---|---|---|
| To 125 mbar | 0 - 275 m³/hr | To 125 mbar |
- Atex Compliant to Zone 1
- Continuous Running at:
- Zero Conditions
- Full Load Conditions
- Robust Construction
- Cool Running
- Compact Design
- Low Noise Level
- Easy Maintenance
Specification
Design
- Centrifugal – Gas booster and exhauster
- Single Stage
- Aluminium Impeller
- Cast Iron Bearing Housing
- Aluminium Volute Casing
- Seal Arrangement – for Bearing and Shaft Protection
- Bearing Arrangement – fully enclosed for protection against gas
Arrangement
- Baseplate Mounted – vee belt driven
- Duty/Standby
- Packaged to IGE/UP/2 – or particular customer specification
- Acoustic/Weather Proof Enclosures
- Control Panel
- Zone Rated Motors – to complete ATEX compliance
Applications
- Air, Natural gas, Landfill gas, Biogas, as well as many other gases
| Pressure | Flowrate | Vacuum |
|---|---|---|
| To 70 mbar | 0 - 450 m³/hr | To 70 mbar |
- Atex Compliant to Zone 1
- Continuous Running at:
- Zero Conditions
- Full Load Conditions
- Robust Construction
- Cool Running
- Compact Design
- Low Noise Level
- Easy Maintenance
Specification
Design
- Centrifugal – Gas booster and exhauster
- Single Stage
- Aluminium Impeller
- Cast Iron Bearing Housing
- Aluminium Volute Casing
- Seal Arrangement – for bearing and shaft Protection
- Bearing Arrangement – fully enclosed for protection against gas
Arrangement
- Baseplate Mounted – vee belt driven
- Duty/Standby
- Packaged to IGE/UP/2 – or particular customer specification
- Acoustic/Weather Proof Enclosures
- Control Panel
- Zone Rated Motors – to complete ATEX compliance
Applications
- Air, Natural gas, Landfill gas, Biogas, as well as many other gases
| Pressure | Flowrate | Vacuum |
|---|---|---|
| To 125 mbar | 0 - 1200 m³/hr | To 125 mbar |
Gas Boosters are designed to raise the pressure of gas supplies to provide sufficient combustion or use smaller sizes for pipework, valves etc. Based upon centrifugal fan designs, they give a high performance from a small physical size. They occupy less space and have lower power consumption than equivalent direct drive boosters, and our latest designs have lower noise levels. Secomak gas boosters have been leading the market for over 40 years across many industries worldwide.
- Secomak Gas Boosters are based on centrifugal fan designs and give a high performance from a small physical size. The Secomak layout occupies less space than direct drive boosters of conventional design and has comparable performance.
- Packaged gas booster units come complete with all necessary controls. These include start/stop facilities from either the booster or a separate management panel, overload protection and pressure switches for the inlet and outlet of the booster. The only work required for installation is to supply the appropriate electrical power and mechanical connections to the booster.
- An automatic changeover unit is available for installations where a duty and standby unit is installed. This will automatically switch on the second unit if the main booster fails and provides a visual warning that attention is required.
- Booster fan chambers are cast in either aluminium alloy or cast iron and manufactured to eliminate porosity. Impellers are also thrown in aluminium and dynamically balanced to reduce noise and vibration. Booster fan bearing housings are manufactured in steel for mechanical stability, and each fan chamber assembly is sealed for gas tightness and individually tested for leaks with air at 250mbar.
- An automatic belt tensioning arrangement is used on all models in the range. This has the benefit of low maintenance and fast and simple belt replacement. All models are suitable for ambient temperatures up to 40°C and are continuously rated. Motors are T.E.F.C and are protected to IP54.
Namwon Turbo One is a specialized manufacturer of high-performance turbo blowers. They develop and incorporate the latest innovations in air bearing, precision machining impellers, high-speed high-efficiency permanent magnet motor, high-speed control inverters, automatic control logic and system design.
Energy-Efficient - Saves up to 45% of energy relative to comparable blowers
Low Maintenance Cost - Non-lubricating air-foil bearings
Vibration Free - Magnetic levitation shaft allows a vibration-free operation. 75-80 dB equipment, no need of sound-proof auxiliaries
Compact Size - The size of our Turbo Blower machine is only one third of PD Blowers
Compressors
Centrifugal, turbo, piston and vane compressors are offered by NWE are designed for the compression of air and gasses, including process gas, biogas, LPG, and others. Turbo Blower Compressors are used for water treatment and at power plants. Vane compressors are the best choice for digester mixing, involving handling aggressive gases. Complete anaerobic digester systems are also available.
Vane Compressors
Utile Sliding Vane Compressors / Pumps are ideal for handling aggressive gases, including Digester, Landfill and Biogas applications, and are used in wastewater treatment (for anaerobic digestion), small biogas plants and farm digesters. Utile compressors have been manufactured in the UK since 1914 and are well suited to the environment in New Zealand. They are robust, reliable, cost-effective and simple to maintain. The running costs of vane compressors are much lower than other types of compressors, as they have less power absorbed (giving the lowest whole life costs) and do not require a constant water supply. Utile pumps are currently used by the majority of Water treatment companies in the UK. Also designed and suitable to operate in 50C ambient conditions, all units can be packaged on galvanised steel skids, complete with motor, pre-piped and form a package compliant with ATEX, DSEAR and IGEM/UP/2 standards. Handling sludge? Read about the advantages of gas mixing over slurry mixing and our example of the process utilizing efficient equipment and modern technologies.
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Anaerobic Gas Mixing Brochure
Anaerobic Digestion Brochure
Efficient anaerobic digestion systems utilize complete mix digesters. Digester tank mixing allows disposing of wastewater in a more efficient manner. This process allows sewage to be processed and returned to the land to fertilise or dried and compacted into briquettes for fuel, while water is purified and discharged into the watercourse. Generated methane is often used to feed combined heat and power plants, thus ensuring quick repayment of capital costs. Read more on turning liquid waste into power with anaerobic digestion or check the description of the anaerobic process utilizing modern technologies.
We offer unique, well-proven and efficient anaerobic digestion mixing systems providing a cost-effective solution with rapid payback, simple installation in new or refurbished digester tanks with low whole-life costs, utilising Utile gas compressors manufactured in the UK for over 50 years.
The Utile continuous anaerobic gas mixing system is suitable for use in sealed digester tanks, whether cylindrical, spherical or egg-shaped. Its design optimises the sludge digestion process and produces a more homogenous mix than other systems.
Main features:
- ATEX Compliant
- DSEAR Compliant
- Increased Operating Efficiency
- Low Capital Cost
- Simple Installation
- No Downtime
- Turnkey Packaging
Main applications:
- Primary Digesters
- Acid Phase Digesters
- Industrial Effluent
- Farm Slurry
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Natural Gas, Landfill Gas, Digester Gas and certain other corrosive gases can be handled by Utile sliding vane compressors.
Main applications include digester gas mixing, burners, gas engines, vapour recovery, aeration and crop spray.
The sliding blade design employed in these machines is an efficient and simple method of supplying medium volumes of air and gases at low-pressure differentials. The once-through lubrication system with isolated bearings makes this ideal for handling aggressive gases, including digesters and landfills.
The cylinder is made from high-grade close-grained cast iron with deep fins to provide an ample cooling surface. The bore is machined to give maximum blade life. SG iron rotor and shaft assembly, balanced and accurately slotted. Sliding blades are made from a non-asbestos hard-wearing resin bonded fabric material. Roller bearings are fitted to both ends and isolated from the cylinder.
Mechanical seals are fitted when handling aggressive gases to provide a positive seal. The blade depth can be quickly checked without the removal of any parts or pipework. All machines in this range are air-cooled with a fan fitted at the rear end to assist cooling. Overheating of vacuum pumps continuously working at 457 mm Hg (18”Hg) and above is eliminated by introducing cool filtered ballast air.
Normally supplied belt driven at speeds to give exact output requirements.
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Air and Gas compressors of the L12-70 series are used for digester gas mixing, aeration and for burners. Vacuum applications include Vacuum Forming, Vacuum Lifting/Chucking, Dewatering, Vacuum Priming, and Liquid Waste Tanker.
The sliding blade design employed in these machines is an efficient and simple method of supplying medium volumes of air and gases at low-pressure differentials. The once-through lubrication system with isolated bearings makes these ideals for handling aggressive gases, including digesters and landfills.
The cylinder is made from high-grade close-grained cast iron with deep fins to provide an ample cooling surface. Bores are machined to give maximum blade life. Meehanite rotor and shaft assembly, balanced and accurately slotted. Sliding blades are made from a non-asbestos hard-wearing resin bonded fabric material. A mechanical oil pump provides a metered supply of oil to the cylinder, providing ideal lubrication to wearing parts.
The blade depth can be quickly checked without removing any parts or pipework. All machines in this range are air-cooled with a fan fitted at the rear end to assist cooling. Overheating of vacuum pumps continuously working at 457 mm Hg (18”Hg) and above is eliminated by introducing cool filtered ballast air.
The LG series gas compressors are used for digester gas mixing in gas engines, vapour recovery, and burners.
The LG series of air-cooled gas compressors have been designed to work continuously at pressures up to 25 psig or 75 psig as the second stage in a two-stage compressor system. Rugged construction coupled with many years of development ensures long life and high efficiency for these compressors that are available as bare shaft or complete packaged units. The simple design of the rotary vane compressor with few moving parts ensures operational reliability, low noise levels and minimal maintenance. A mechanical lubricator at the rear end provides lubrication for the cylinder and bearings.
Special tools are not required to replace or inspect the vanes for wear, and all the cylinders, cover plates and rotors are manufactured in Ductile Iron.
Some features of this sliding vane compressor:
- The shaft is mounted on roller bearings at both ends, and the rotor is axially located at the drive end by a ball bearing
- Deep fins are cast into the cylinder to assist excellent running and the cylinder is bored to a fine finish to ensure long vane life and low noise levels.
- The sliding vanes are manufactured from a Kevlar-based material having excellent wearing properties.
Noise Suppression
Blowers, Compressors, Safety Valves, Vents and other process control industrial equipment generate high noise levels which, following New Zealand Standards, need to be reduced and suppressed to the required levels. With the help of our partners, QE International.
Nu-Way Energy has a product offering a wide range of industrial silencers to meet the crucial need for noise reduction within any industrial environment. NWE also has the experience and capability of offering guaranteed industrial noise reduction solutions that can be tailor-made to meet specific application requirements
Control valves are often used to reduce the pressure in the gas or steam networks, which can lead to significant levels of noise generation, up to 160 dBa. The strategically positioned diffuser will reduce the generated noise to acceptable levels bringing the system in compliance with the Australian Occupational Noise National Standard. Noise attenuating diffusers require no maintenance and provide a cost-effective solution to excessively generated noise. The system installation life span will be improved considerably as a result of minimising internal vibrations and changing harmful low-frequency noise.
Design, fabrication, inspection, testing, and certification of diffusers are in accordance with international requirements of ASME VIII Division 1 or EC Pressure Equipment Directive PED 97/23/EC.
Positive displacement blowers and compressors form an integral part in many production processes, typically pneumatic conveying or vacuum systems. Without the use of pulsation dampeners, noise levels can exceed 160 dBa. The pulsation dampener will bring noise emission to an acceptable level.
Low-frequency pulsations cause vibrations that may result in damaged equipment. Pulsation dampeners smooth away pulsations generated by compressors thus increasing the life span of equipment, as well as ensuring noise reduction.
Positive displacement blowers and compressors are integral to many production processes, typically pneumatic conveying or vacuum systems. Without the use of pulsation dampeners, noise levels can exceed 160 dBa. The pulsation dampener will bring noise emission to an acceptable level.
Low-frequency pulsations cause vibrations that may result in damaged equipment. Pulsation dampeners smooth away pulses generated by compressors thus increasing the life span of equipment, as well as ensuring noise reduction.
Innumerable safety and control valves are used in petrochemical, chemical and electricity power-generating plants where steam, gas and other vapours are vented into the atmosphere. The opening of these valves is accompanied by extremely high noise levels (up to 160 dB(A)).
This is where the Vent Silencers play an important role in reducing noise pollution and eliminating the risk of operator hearing damage. The design features of QE Vent Silencers include diffusers and expansion chambers, where the pressure of the vapours is reduced to atmospheric pressure, and an absorption section, where sound energy is converted to friction heat. QE Vent Silencers are typically constructed with carbon and stainless steel, but higher alloy materials can also be provided for applications within high temperatures and corrosive environments.
Separators are essential in effectively removing solid particles from gas and vapour streams. This, in turn, helps reduce maintenance costs and downtime on equipment and particle emissions into the environment.
Some applications: Separators are used for the protection of equipment (such as turbines) against damage caused by particles or droplets; for the recirculation of condensate for steam applications, the recovery of chemical solids and precious materials.
Separators can be custom-designed to conform to various international pressure codes and to operate in extremely high or low temperatures.
These separators have no moving parts and are built to last – even in exposed locations.