oil0128
You will need more than just steam traps - you will need proper layout which should include "drip legs".
I absolutely agree with europipe - go to the spirax-sarco website for free details. What is even better, is to get a copy of their handbook "The Steam and Condensate Loop - An engineer's best practice guide for saving energy". This consolidates all the website information into one book - about 1000 pages plus/minus. It's easier to find the information you want than trying to page through hundreds of web pages. Cost is about USD100 - an investment that will pay off time and again. And despite the title, it's about MUCH more than a guide to saving energy - it's a design bible!