24/7 online application support Designer's manual is a guide to help you select among our products based on system requirements and application. Select one of the systems to open up a system drawing. Click on the valve symbol and you get a list of products that we recommend for this specific position. For more detailed information or to download the product datasheet, click on one of the listed products. Please contact us (email@example.com) if you have further questions about our products or want us to send you a quotation.