For the most comprehensive, secure and easy to use tool that will size and select valve bodies, actuators and accessories, order your free copy today. This is the same tool used by engineering professionals everywhere. Included is the capability of quality, printed process capability worksheets showing how each valve performs under the process conditions of the application, for documented proof and your peace of mind. For the simplest of applications and when engaging in replacement business, sometimes just a quick verification from a flow table is all you want. For those of you that miss the old, trusted slide rule, this quick utility is for you. Simple water and steam flows are available in an easy-to-use, at-a-glance table style format. This method is particularity efficient when demand is know but valve size, inlet pressure and/or drop are still variables. View Tables If your interests are educational with respect to valve sizing our handy sizing guide will walk you through the process. Alternately, armed with pencil, paper and calculator you can do your own sizing using this guide along with the appropriate Warren valve catalog or technical bulletin.