Peerless Products

Don't kill your compressor by over-revving it! Peerless offers a full range of compressors running under 1000RPM. If you are thinking of buying an air compressor, to ensure you don't kill your compressor, make sure it runs at slow RPM. Our rev range is less than half that of our major competitors and will last twice as long doing exactly the same work. By reducing RPM you not only increase the life of your compressor but also its performance.This is achieved by dramatically reducing the pumps operating temperature. Therefore you reduce the amount of condensation in the air, which will increase the performance and life of the compressor. Peerless' motto: Slow RPM, Longer Life, Great Performance.

Please ensure when selecting a compressor that you have the correct power supply to run your air compressor. Please not extension leads will cause voltage drop to electric motors.

• 3 cylinder cast iron industrial pump
• 12 month warranty on the complete unit
• Copper tube connection pipes
• Fully automatic cut in cut out pressure switches
• Robust construction
• Australian manufactured DLI approved air receivers built to Australian standards
• Double vee belt drive pulleys except the 00121 which has triple belts

WHAT’S THE DIFFERENCE BETWEEN A TWO STAGE & SINGLE STAGE COMPRESSOR?

A single stage compressor can consist of one or more cylinders. With a single stage, if more than one cylinder is used, then each cylinder will be of the same size. The function of the cylinders is to compress air to a desired pressure. A two stage compressor consists of two or more different sized cylinders.The largest one is the first stage or low pressure cylinder, the smaller is the second stage or high pressure cylinder. Atmospheric air enters the low pressure cylinder through the intake and inlet valve.When the piston comes up in the cylinder, the air is compressed and pressurised, then pushed through the discharge valve. It then passes through a large intercooler to the high pressure cylinder. When the piston comes up in this cylinder, the air is again compressed further and a greater pressure is achieved. It is then pushed out through the discharge valve into the air tank.

With a Peerless 2 stage V or W compressor at a discharge pressure of 100PSI, the temperature is approximately 35 degrees Celsius lower than for a single stage unit. The result of the lower output temperature is far less carbon build on the valves, which results in less maintenance and also dryer air which dramatically reduces condensation. The intercooler consists of a number of tubes with cooling fins around them.The air that passes through is cooled by a blast of air blown over the tubes by the flywheel fan.This causes the air to shrink and pressurize further before entering the high pressure cylinder.

Single stage compressors generally compress air to approximately 140PSI, whilst some two stage compressors can deliver compressed air to approximately 175PSI.

Two stage compressors are more efficient. Less HP is required to achieve standard operating pressure compared to a single stage compressor or a rotary screw compressor.They are approximately 88% efficient to 175PSI.

One of the reasons to use a two stage unit is to deliver the air much cooler as this prevents condensation. Inline units defeat this purpose and therefore need after coolers to try to reduce the temperature which is not as effective as using V or W design.

At Peerless,we build our two stage units to be more efficient yet still be able to produce high pressured drier air. Our unit is not of an inline design so does not require an after cooler to help reduce the temperature.

All our two stage units have a solid cast iron pump and are all made to a slow revving design to increase the life of the compressor. Our pumps rev substantially less than others in the marketplace today.This ensures that your machine is not overworking and will last longer.

Our units are specifically built for industry use and you can be assured that they are of industrial strength with long term durability. Ease of maintenance in the servicing is also a huge benefit to you.

We, at Peerless, use a wire belt guard on our two stage units as this allows a 99% air flow around the unit.This helps to keep our slow revving pump even cooler which then helps to increase the life of the unit. Our pumps rev range is less than half that of our competitors in some cases. Our pumps achieve exactly the result as a fast revving pump but as it is slower revving it will outlast the faster revving pumps every time.

All Peerless two or single stage industrial pump air compressors are built with a bearing at each end. This is much more reliable than a compressor built with an overhang crankshaft with a bearing at one end of the shaft only. The crankshaft is electronically balanced and ground. All our industrial pumps use split conrods with white metal slipper bearings which is far superior than non split ones. Extra heavy duty roller bearings are used in each end of the shaft for maximum free vibration and smooth running of the unit.

1ST STAGE ONLY

A single stage compressor compresses air in a one step process which allows only limited air pressure. It’s a bit like stepping up onto a table with no chair to help out the process, which takes a lot of exertion on your behalf.

2nd STAGE

Two stage compressors compress air to a higher pressure by being able to work with a step up process. This is done with the larger cylinder first and then the smaller cylinder. It allows for a simple process of getting a better result with much less stress on the pump.

• Lower cost of the distribution plant
• Lower maintenance costs
• Energy savings
• Longer life
• Greater productivity
• Better quality of the final product

1. The slower you run a compressor, the cooler the pump will be which will last longer and increase performance.
2. Increased pressure will increase load on electric motor and decrease performance on single stage models.
3. No piston type compressor is designed to run continuously. Must cut in and cut out, maximum duty cycle 80% ideally 60%.
4. Make sure your customer understands this.
5. All compressors must be checked and serviced reguarly. If using 5 days a week,must be serviced at least once a month.

Please check your service booklet on what part of the compressor must be serviced at what time.

Remember: Service is not warranty.

Peerless have easy to follow air tool flow charts. If one is not handy then simply use this calculation. If air tool is continuous use ie: Air sander, die grinder, sand blaster, air dusting of large areas allow 9-11 CFM per tool.

If the tool is intermittent use ie: Spray gun, impact gun, air drill allow up to 4-6 CFM per tool.Add up how many tools there are and allow 25% for duty cycle of compressor and this is the amount of free air you require.

1. CAN I USE MY COMPRESSOR ON AN EXTENSION LEAD?

Any extension lead will cause voltage drop, whether it be 10Amp or 15Amp lead.Voltage drops will cause motor failure. When an air compressor cuts out and cuts back in the motor can draw 4-6 times the run current, therefore it is extremely important to have good power supply. Remember use air hose not extension leads.

2. WHAT SIZE GENERATOR DO I REQUIRE?

All compressors require 3KVA for every 1HP of electric motor. Ie: 2HP air compressor requires 6KVA generator. This is plugging compressor directly into generator. No extension leads.Also check continious KVA rating on generator not peak rating.

3. CAN I HAVE A BIGGER AIR RECEIVER?

By putting a larger receiver on and the same size compressor pump you create low pressure more of the time to your system. Compressors are designed to maximise thier pump performance to the correct air receiver size. Larger receivers mean longer time between cut in and cut out pressures.

4. WHAT OIL DOES MY COMPRESSOR USE?

You can use a standard 20/40 motor oil but we recommend you use A46 hydraulic oil, as there is no detergent base in hydraulic oil which will stop the foaming of oil.

5. MY COMPRESSOR WON'T PUMP UP ANY HIGHER THAN 40-50PSI

The main cause of this will be blocked intake filters, which causes increased temperatures. It could also have a blown head gasket or cracked valve (must keep filter clean)

6. DOES MY PETROL UNIT HAVE AN IDLER CONTROL VALVE?

All Peerless petrol and diesel models come standard with an idler control valve. Peerless use genuine Honda engines.The idler control valve improves fuel consumption and life of compressor

Please check the following before ordering bare compressor pumps

• HP of electric or petrol motor
• If single phase or 3 phase and RPM of motor
• Pulley size and type of V-belt

WHEN YOU RECEIVE A BARE PUMP - POINTS TO CHECK BEFORE USE

1. Check oil level 4. Check that RPM is correct
2. Only use compressor oil AW46 hydraulic based 5. Check the pump and motor pulley are in line
3. Check that compressor is running correct direction 6. Check V-belt tension

- air must blow over pump 7. Check that non return valve is working correctly