Flanged Ball Valves
In the world of valves there is always so many to choose from. Flanged ball valves, Threaded ball valves and the list goes on! Other things you must know when calling in for a quote is the size, trim, material, reduced or full port of the valve and most importantly what the valve will be used for. When you have finally decided that you need a flanged ball valve for your application, you will need to decide if you will want a 1, 2 or 3 piece valve. You will make a decision based on cost, maintenance and if it will need to be automated.
First, lets take a look at a one piece flanged ball valve. Contrary to what others say, a 1 piece design ball valve or unibodies are not always the cheapest and you can automate any flanged ball valve with a mounting pad. These valves are not repairable so if one breaks you will need to replace the whole valve which is time and money. If you are looking into a 1 piece flanged ball valve, be sure to check out our Series FS or http://gvcintl.com/files/GVC%20Series%20FS.2011.pdf
A 2 piece and a 3 piece ball valve was definitely designed with maintenance in mind as it can be easily cleaned. The biggest difference between the two is that the 3 piece can be taken out of line without affecting the two end caps while the 2 piece can not. As far as cost, a 3 piece is more expensive up front but in the long run it could be a wiser choice as the seats and seals are replaceable and with a 2 piece you will need to replace the valve entirely if there are any issues. If you are looking for a 2 piece flanged ball valve, take a look at our Series CFS, FS600, or
If you are looking for a 3 piece or a 3 piece in Trunnion take a look at http://gvcintl.com/files/000%20GVC%20SERIES%202T-3T%20Secured%20o.pdf
Source: Valve MD For more information on valves please visit our catalog page here: http://gvcintl.com/catalog.html