3816 WEST SLIGH AVENUE
TAMPA, FL, 3361-3961
PHONE: 813.888.7991
FAX: 813.243.8218 
EMAIL ADDRESS:
AAITAMPA@YAHOO.COM 
MONDAY-FRIDAY: 8:30 A.M. - 5:00 P.M.
HOME ABOUT US SERVICES WARRANTY & RETURNS PARTS SHOP ONLINE SCHEDULE APPOINTMENT  CONTACT
MAIN MENU
home
about us
services
warranty & returns
videos
parts
shop online
schedule appointment
contact auto air

MY ACCOUNT
login now
create account

SHOP ONLINE
View My E-Quote
View My Shopping Cart


Rock Bottom Prices
We offer wholesale prices to the public and can beat any competitor's price.


Like us on Facebook! +1 us on Google!



TAGS
Click on the individual part below to learn how it functions with in your vehicle's A/C System.

compressors, evaporators, condensers, accumulators, orifice tubes, expansion valves, weld-on-barbs, splicer barbs, engine cooling fan, hoses and belts, receiver/dryers

Manufacturer & Supplier of Auto
AUTO AIR AND ELECTRIC OF TAMPA EXPANSION VALVES
Auto Air & Electric of Tampa sells a complete inventory of New & Remanufactured parts. We are a manufacturer and distributor of automobile air conditioning parts and provide automobile air conditioning service and repair. We order supplies directly from the after market manufacturers, if we don't have what you need in stock, we can make it for you.

 

 

The expansion valve's place in the system is at the evaporator inlet. Like any other valve, its job is to control flow; in this case, the amount of refrigerant entering the evaporator. Since system operating conditions vary (sometimes high cooling demand, sometimes low cooling demand) it is necessary to be able to adjust the amount of refrigerant entering the evaporator. For any given operating condition, if we were to to allow too much refrigerant to enter the evaporator, it would get too cold, and the moisture collected on it could freeze. This would not allow the hot interior air to pass through its fins, and the refrigerant flowing inside the evaporator would not be able to absorb the head from the air. This would eventually bring cooling to a halt. If we were to allow too little refrigerant to enter the heat, which would also result in inadequate, or no cooling. This process of varying refrigerant flow based on system cooling demand is referred to as "metering" the refrigerant into the evaporator.

So how does the expansion valve know how much refrigerant to meter into the evaporator, and how does it do it? First the "how it does it," and its quite simple. Expansion valves contain a movable rod which travels up and down inside the valve. As the rod moves up and down, it can open and close the passage inside the valve that serves as the flow path for the refrigerant. The valve does not have to be fully opened or fully closed at any given time. Its position can vary, or modulate, between the fully opened and fully closed positions. Because of this, it can very accurately meter the precise amount of refrigerant needed to meet any given cooling demand.

This internal passage inside the TXV is much smaller than that of the refrigerant flow pipe that delivers the refrigerant to it. Because of this, as the refrigerant flows through this passage, its pressure drops, and it becomes a low pressure liquid. So as you can see, the expansion valve also serves as a "dividing line" between the high and low pressure sections of the system.

Now the "how does it know how much" part. This is based on evaporator temperature. The warmer the evaporator is, the more refrigerant flow needed, and vice-versa. The expansion valve has a temperature sensing device called a sensing bulb. The sensing bulb measures the temperature of the evaporator and sends a signal to the movable rod inside the expansion valve. This signal corresponds to the amount of refrigerant needed, the rod moves to the propper position, and the correct amount of refrigerant enters the evaporator.

An expansion valve could somewhat be likened to the thermostat in an engine cooling system:

- The thermostat controls the flow of coolant from the engine to the radiator based on cooling system temperature.

- The exapnsion valve controls the flow of refrigerant entering the evaporator based on evaporator temperature, or A/C sytem load/cooling demand.

 


Delivery, Service, & Installation in Tampa Area

Nationwide & International Shipping Available

Call our knowledgeable staff today for the highest-quality products and services at the most affordable prices.

Spring Car Shopping? Take Care Of Financing First
Looking for a new car? Here are some great tips for anyone doing spring car shopping. Take care of financing first and get the best car you can afford by planning before you go to the car dealer.
Mon, 04 Mar 2013 00:04:01 PST
Car Credit And Financing Facts For Car Shoppers
Car financing and credit facts to know before you go car shopping this summer. There might be great auto deals out there, but will you be eligible for them with your credit score? Find out what you should do before you go to the car dealer.
Tue, 25 May 2010 23:32:22 PST
Before Applying For Auto or Mortgage Loans, Do Your Research
Before applying for an auto or mortgage loan, do your research. Banks like Wachovia, Citizens, Chase and even Capitol One auto loans may be your best bet...or not. Make sure you compare each of the factors, interest, repayment charges and loan fees, before you sign an auto loan or mortgage.
Tue, 20 Oct 2009 17:10:49 PST
Car Financing Tips To Know When You're Buying A Car
What you should know about car financing. Financing a car is more than just your monthly payment.
Thu, 09 Oct 2008 21:39:50 PST
Car Loan Calculators
Car loan calculators help you to see what the monthly cost will be for your new or used car purchase.
You can find them online and they come with buy or lease options. They can help you determine how much car you can buy so the payments will fall within your budget.
Mon, 07 Jan 2008 23:47:00 PST
Getting a Good Deal On A Bad Credit Auto Loan
Car loans are available to those with bad credit. Bad credit car loans make it possible to purchase a car even if you have some credit challenges. Bad credit auto loans are offered by a niche group of lenders, and increasingly, traditional lenders that are willing to make high risk loans to borrowers with bad credit.
Mon, 03 Dec 2007 00:18:00 PST
Would I Qualify For A Bankruptcy Auto Loan?
If you incur bankruptcy, filed for one and you need to avail yourself of a vehicle loan then you can approach a lending specialist that can offer you bankruptcy auto loans. A bankruptcy auto loan is the loan you availed of after incurring bankruptcy. Specialist lenders and car dealers can extend bankruptcy loans for consumers after filing bankruptcy.
Wed, 02 May 2007 23:05:00 PST
Auto Refinancing Puts Gas Money in Your Pocket
With gas prices at an all-time high and no relief in site, families are finding it necessary to cut back their spending on other items in order to fill up the car's tank. The price of a barrel of crude oil recently peaked at $77 dollars. That translates to prices hovering around $3 per gallon at the gas station.
Sun, 25 Mar 2007 23:05:00 PST
Financing Your Next New Car
This year's cars are out and there's something out there for everyone. The hard part is paying for it. Fortunately, getting a car loan may be easier than you think. Here are some tips to help put you in the driver's seat.
Sun, 04 Mar 2007 20:45:00 PST
Shopping for a Used Car Loan
When it comes to a used car loan, there are quite a number of concerns. You may asked yourself,"How can I sell my used car to a private party if I don't have title?" or "How do you finance a car from a private person?" as well as many other questions.
Wed, 07 Feb 2007 12:48:00 PST


Auto Air & Electric of Tampa
3816 W Sligh Avenue
Tampa, FL 33614-3961
Copyright 2012 Auto Air & Electric of Tampa
All Rights Reserved
sitemap | xml | reset web session | admin
Phone: 813.888.7991
Fax: 813.243.8218
aaitampa@yahoo.com