Digital Inflation Systems

Some videos on here about everyday people using tyre inflators at home:

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Air Compressor Review: Rhyas 50L 14CFM Compressor 3HP V Twin 240V

Air Compressor Review: Rhyas 50L 14CFM Compressor 3HP V Twin 240V

For the hobbyist or home DIY enthusiast, an air compressor is a useful and desireable bit of kit. But an air compressor with a decent spec for home use is expensive, right? Actually, the answer is ‘no’. Based in Leominster, UK home and garden equipment manufacturer Rhyas produces a range of cheap air compressors that represent excellent value for money without compromising on quality or performance.  Rhyas’ 50Litre 14CFM Compressor 3HP V Twin 240V is a smart and robust-looking portable air compressor, featuring large rubber wheels, a sturdy handle and stabilising feet. 

OK, so it’s nice to look at and easy to transport but what’s this air compressor like in use? As the name suggests, the specifications of this air compressor for home use are pretty special. The whopping 50 litre air receiver, combined with an impressive 3HP V twin motor, can produce 14 cubic feet per minute (CFM) of compressed air at pressures of up to 116 PSI. Despite this, the Rhyas 50L 14CFM Compressor 3HP V Twin 240V is marginally quieter in operation than some air compressors, with a loudness rating of just 97 Decibels; that’s comparable to your average lawn mower. In other words, this wallet-friendly air compressor from Rhyas is more than capable of operating a wide range of air tools and spray guns making it suitable for tackling a host of jobs around the home and garden without breaking the bank.

Dental compressor parts: good mouth care.

Cleaning our teeth at minimum every night and morning has been the foundation of good teeth and mouth care for as long as we remember.  Life would not be the same without the toothbrush and toothpaste on its shelf under the bathroom mirror over the bathroom wash basin. It is a ritual, if you please, and one that we would not do without even it stopping this tradition would not spell the end of the wellbeing of our sweet sets of pearly whites. Unbelievably, abac compressor parts have a great deal to do with our teeth. Eventually joined by a long chain of related links, including equipment, know-how and skills, good health practices and belief in our world of dental health, our teeth and the many dental compressor parts, that form a dental compressor, seem unable to exist without each other!

Were it not for the fact that we have teeth at all, we would not of course have any concern about keeping our teeth well maintained for as long as we can.  Were it not for the fact that dental compressor parts combine to support the vital dental equipment needed to keep our teeth healthy or to provide us with replacements when our teeth give up the ghost, then we would of course not be concerned about the technology needed to support them. We would never go to a dentist and we would never worry about mouth care. Teeth and dental compressor parts are inextricably bound by dependency and their destiny is together, however far apart they seem. Check out our dental compressor parts. 

Compressor spares: the clearest of all.

Verb or noun “spare” has spawned numerous weird and wonderful expressions using various forms  of the word.  Some go way back in time and others are modern versions like compressor spares and other types of spares when we need a replacement for something.

Think of the cruel and humiliating “Spare the child, don’t spare the rod!”.  This was a mantra of previous eras when it was thought best that children be seen and not heard and that to beat them as punishment was a kind act making them good and decent citizens in later years.   What about the taunting “spare me your pity”, often used in melodrama, and a million miles away from the kind of compressor spares that we talk about at Air Supplies?   Can you spare me £10 until Tuesday? Annoying to have a friend constantly borrowing from you especially if Tuesday never comes!  

We are often exhorted in hot weather to “use water sparingly, a drought is coming” by local authorities anxious to decrease the amount of water supplying households during summers that are drier than usual. So many different uses of a single word meaning save, don’t bother, lend, and in little amount.  “Compressor spares” means something totally different again. As a plural of a noun compressor spares are just that - the spare parts that you would use in a compressor!

10 Tips for a Healthy Compressed Air System

1. Read & Follow Your Air Compressor's Manual
Nothing stops an air compressor faster than an owner who doesn't read the owner's manual. There's going to be some simple tips in there for you that will help you to get a nice long life out of your air compressor - simple stuff for you to do that you would never have thought to do unless you read it. Besides, no one knows your compressor better than the manufacturer.

2. Check the Oil Level Regularly
If you're running a compressor that uses oil you should be checking it on a daily basis to make sure that your machine is topped off. Then, every 500-1000 hours (only true of some recip compressors, most synthetics say you can get away with yearly change-out) of use you should be changing this oil to ensure maximum functioning of your air compressor.
Find your lubricant cross now..

3. Drain Traps for Water and Oil Removal
Water and oil removal systems like filters, dryers, tanks, and separators are only efficient if the contaminants are removed from the system. Make sure these contaminant removal devices have proper functioning drains. Press the test button if the drain has one, or better yet, take the time to watch it fill and dump on its own. Open the bypass (your drain does have a bypass, right?) and check for condensate stuck behind a blocked line upstream of the drain.
Find automatic and timer drains now…

4. Inspect & Clean the Air Filter
A dirty air filter makes your air compressor work harder, consume more electrical energy, and runs the risk of contaminating the compressor, particularly if it ruptures. Check your filters regularly and change them if you notice a heavy build up of dust and dirt. Change every three to six months or so if you use it infrequently.
Find replacement filter elements now…

5. Change the Separator Element
The separator element prevents the excessive use of oil, but it has to be replaced periodically. Keep your compressor in top condition by replacing the separator element every 1,000 hours of operation. Remember, every 2 PSI of separator pressure drop can increase your compressor energy costs by 1%. Changing separator elements is very inexpensive by comparison.
Find replacement air/oil separator elements now…

6. Stop, Look & Listen
Stop, Look & Listen for any unusual noise, overheating, vibrations or belt slippage and correct before damage of a serious nature develops. Familiarize yourself with proper instrument and gage readings. Check daily for abnormal readings before major damage occurs. Keep a daily record of key readings such as oil pressure, oil temperature, motor amps, and discharge pressure.
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7. Check for Leaks Throughout
Leaks in compressed air systems often account for 25% or more of the compressed air generated. Check entire system for air leakage around fittings, connections, and gaskets, using an ultrasonic leak detector. Common areas to check are piping and flexible joint packings, control lines, control line fittings, clamps and connectors, valves, air pressure safety relief valves, and pressure gauge connections.
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8. Proper Compressor Temperature
Should be within manufacturer's limits. Refer to the air compressors manual to make sure you are operating within the proper temperature range. Many of the tips from above can affect temperature if they are not checked regularly.

9. Compressor Cleanliness
Maintain in a clean condition; an air compressor should never leak oil. When you’re checking your compressor, remove any dust from the motor, pump and cooling fin area. This will help to keep the pump and motor running cooler and prolong the life of your compressor.

10. Keep Extra Filters and Parts on Hand
One of the main keys to maintaining an efficient compressed air system has been and still is Preventive Maintenance.

Purchase your maintenance supplies prior to the scheduled date
Be sure to check all the devices that need maintaining before you purchase your supplies
Don’t let system failure be your signal that is time to do maintenance
Plan your preventative maintenance when it is convenient for you-or it will plan itself when it is not convenient for you!

Dad garage compressor pumps cars

Air compressor technology: Match the compressor to your specific needs

Determining compressor cfm

What cfm capacity do you need? Following is a generalized formula for selecting the cfm rating of your new compressor. Add up the cfm requirement of all of the pneumatic tools that you plan to run (air wrenches, grinders, drills, spray guns, etc.). This total cfm should represent the grand total of all of the air tools that you would realistically plan to run at the same time.
Once you have this tool cfm total, add to this a 10% margin to compensate for potential air leaks (leaks at fittings, etc.). Then add another 15% as a safety margin (for piston compressors).
This compensates for tool cfm ratings and the published rating of the compressor (any of which might not be accurate in the real world).
As another example, if your total tool cfm potential use in your shop is, say, 20 cfm, you’ll add 10% (2 cfm), then add another 15% (about 3 cfm), for a total compressor capability of 25 cfm.
While you can get by with less when only running one or two tools at once, you really need to determine a realistic level that will be needed during your maximum workload at any given time.

Total cfm requirements = ________ cfm
(Add up cfm needs of all tools that may be used at the same time)
 Cfm x 1.10 = ________
(Increase of 10% to compensate for potential air leaks)
 New cfm x 1.15% = ________
(Increase of another 15% to provide margin of safety and longer service life for pump operation)
 Maximum psi needed = __________

In summary: Tool total cfm + 10% + 15% = compressor cfm needed. If planning to run a rotary style compressor, you won’t need to add the additional 15%.

Horsepower and motor features
Generally speaking, most true 5 hp compressors can likely provide up to about 18 cfm, ideal for small shop use. A 7.5 hp compressor should be able to provide around 27 cfm at 100 psi.
Cutaway of a typical rotary screw compressor housing. Clearances are extremely tight.

While this range of compressor can usually operate on single-phase electric circuits, horsepower ratings above this range may require three-phase wiring in your shop building.
If considering a piston compressor, look for quality features:

 • Cast iron crankcase and cylinders.
 • Aluminum connecting rods.
 • Tapered roller bearings.
 • Stainless steel reed valves.
 • Fan-type flywheel (for better cooling and less moisture buildup).
 • Motor oil sightglass to monitor oil level.
 • Pressurized oiling system.
 • Low-oil cut-off switch.
Single-stage or two-stage (reciprocating style)

If you plan to install a piston (reciprocating) style compressor, for shop use, consider a two-stage unit. A two-stage compressor begins to compress air in a low-pressure cylinder. That air is then passed through a cooling coil on its way to a second, high pressure cylinder. In other words, the air is compressed in two progressive stages. As compared to a single stage compressor, higher pressures and motor longevity are the results. Two-stage compressors are normally used for pressure ranges of 125 psi and greater. A two-stage compressor will feature an intercooler system (usually a coil) to reduce moisture buildup between the two cylinders.

Types of air compressors
In total, there are five types of compressors on the market. While this group includes the reciprocating type (piston motor), rotary screw type, rotary sliding vane type, rotary lobe, and the centrifugal type, only three are applicable to automotive repair shop applications: piston type, rotary screw and rotary vane.

• Reciprocating type compressors are the most common and least expensive. These feature an electric-driven motor that features a crankshaft, connecting rods, pistons and valves to pump and compress air (similar to a piston engine). These are available in a wide range of horsepower levels, from fractions of hp to around 25 hp.
• Rotary screw compressors feature a pair of “screws” (like a twin-screw supercharger). As the screws turn, the air is squeezed between the helical “teeth” and is compressed.
An example,of a relatively compact rotary screw compressor for automotive shop applications. The Kaeser Airtower is available in models ranging from 4 to 7.5 HP, 9 to 77 scfm and operating pressures of 125 – 217 psig.

• Rotary sliding vane compressors feature an eccentrically slotted rotor, stator and a series of blades. As the rotor turns, the vanes are forced outward from inside the rotor slots, and exhaust air is compressed. Reciprocating, rotary screw and rotary sliding vane compressors are positive-displacement compressors (where the air is mechanically squeezed).
• Rotary lobe compressors feature twin shafts that are each equipped with cylindrical lobes (rotating and squeezing air in a similar manner as rotary screw). These are intended for large industrial applications and absolutely not appropriate for automotive repair shop applications. Both rotary lobe and centrifugal compressors are designed for heavy industrial use only.

Why pick one style over another? Let’s face it: One of the primary factors in any equipment purchase involves initial cost. Reciprocating type compressors have been around seemingly forever and are the most economical to purchase (of course, price is always dependent on quality).