Protect Your InvestmentSecure Ride Appendices 04.26.11

Secure Ride Appendices 04.26.11 2 Protect Your Investment

Protect Your InvestmentSecure Ride Appendices 04.26.11 3

There is some confusion in the marketplace about what is the correct tire purity for nitrogen inflated tires. The market has moved toward a 95% in tire purity as the standard, but is that the best fit for the application?

Based on partial pressures, the ideal purity in a 32 psig passenger tire is 93.6% Here are the calculations that support 93.6%:

•O2 makes up 20.9% of atmosphere, yielding a partial pressure of (0+14.7) × 0.209 = 3.07 in the atmosphere.•In an air filled 32 psig tire, the partial pressure of O2 is (32+14.7) × 0.209 = 9.76 in the tire. The pressures want to equalize, so O2 from the tire leaks to atmosphere.

In a 93.4% nitrogen filled 32 psig tire, the partial pressure of O2 is (32+14.7) × 0.066 = 3.07 in the tire. The pressures are equalized, so the O2 is much more content in the tire and doesn’t look to escape.

What is the harm then if you are higher than 93.4% in a 32 psig tire? Well, believe it or not, NHTSA has proven that O2 will begin to leak back into the tire. 1

1 http://tirenitrogen.typepad.com, August 10, 2009

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Protect Your Investment

Time is Money:Time is Money: In a test conducted on a P245/50 R20

equipped vehicle, the N2G took 10:00 to inflate the 5 tires to 35 psi. The same vehicle was completed in 4:15 with the Kenvo 930.

Larger ½ and ¾ ton truck tire application time to 80 psi is 2-3 times longer using the N2G system.

Purity in both systems is accomplished only with a properly filtered air supply.

In a test conducted on a P245/50 R20 equipped vehicle, the N2G took 10:00 to inflate the 5 tires to 35 psi. The same vehicle was completed in 4:15 with the Kenvo 930.

Larger ½ and ¾ ton truck tire application time to 80 psi is 2-3 times longer using the N2G system.

Purity in both systems is accomplished only with a properly filtered air supply.

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Protect Your InvestmentSecure Ride Appendices 04.26.11 6

Equipment: Kenvo N2-930 capable of filling cars in 6-10 minutes or pickup trucks in up to 15-20 minutes. Higher volume or custom wall mount units are available upon request. Dealer Loaner Program(See Dealer Loaner Agreement for Terms and Conditions)  Purchase: (One year Equipment Warranty)

Kenvo N2-930 …………………………………………………...……. $8,638.00

Freight and Installation ………………………………………………...$357.00

1 – DVD Consumer Video ……………………………………………...No Charge1 – 2 x 8 foot Tire Safe Banner for Service Drive ...………………..No Charge2 – 11 x 17 inch Posters for Business Office ……………………….No Charge2 – 24 x 36 inch Posters for Business Office ………………...…….No Charge1 – Car-Topper Sales Display for Showroom Floor …………….....No Charge

 

Total Equipment Cost ……………………………………………..…….$8,995.00

  Or Lease: Competitive Lease Rates Available. Please call you Pro-Tech Seal Sales Agent for current rates. A 10% buy out option is available at the end of the term.

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Kenvo Technology brings you the very best in replacing regular air with nitrogen. Kenvo has developed a six-tire valve system in order to enable the user to service all six tires at once. The machine requires only shop air to operate; no electronics. The competition obliges the user to fill and deflate the tires multiple times to achieve the appropriate level of nitrogen purity in the tire. The Kenvo 930 applies a slight vacuum in order to evacuate all the air before filling the tires with nitrogen, needing to inflate then only once. The end result is much faster service, saving your dealership time and money.