API skimmers

Hi all,
I'm currently working on a project that involves the installation of multistage oil skimmers on a canal,so i'll need documents on the skimmers,mechanical data sheets etc.some of the process informations are;
1)each units will be equiped with oil traps,oil disc and an oil recovery sumptank,
2)each oil recovery sumptank will be equiped with an oil recovery pump and level swithces
3)each of unit 4 and 5 will be equiped with a gas disperser unit to enhance coalescing of small oil particle diameter
4)the design of unit 3 to 5 will ensure gravity flow
5)unit 1 and 3 will ensure removal of oil globule diameter greater than 60 microns.
pls i need this skimmer in order to carryout my detail piping.
thanks
ifeanyi