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<\/a>When it comes to drawings and diagrams to map out a process system, the piping and instrumentation diagrams (P&ID) are a great way to situate and find components.\u00a0 They use different symbols to represent the types of products, the layout of the system, installation, and process flow.\u00a0 These standard symbols are created by ANSI or ISO.\u00a0 They are used in electrical, hydraulic, and pneumatic processes.\u00a0I will cover some pneumatic symbols and the process flow in this blog.<\/p>\n
A colleague, Russ Bowman, wrote an article about \u201cKnowing Your Symbols Is Key To Understanding Your Drawings<\/a>\u201d.\u00a0 As a reference, air compressors are the start of your pneumatic system, and there are different types as represented by the symbols below.<\/p>\n Air compressors are considered the fourth utility in industries because they use so much electricity, and they are inefficient.\u00a0 So, you need to use the compressed air as efficiently as possible.\u00a0 As a typical pneumatic system, the air compressors, receiver tanks and compressed air dryers would be on the supply side.\u00a0 The distribution system, or piping, connects the supply side to the demand side.\u00a0 This symbol is represented by a simple line.\u00a0 The demand side will have many different types of pneumatic devices.\u00a0 Since there are so many, ANSI or ISO has created some common types of equipment.\u00a0 But if there isn\u2019t a symbol created to represent that part, the idea is to draw a basic shape and mark it.<\/p>\n As an example, if I were to do a P&ID diagram of the EXAIR Super Air Knife<\/a> Kit, it would look like the above diagram.\u00a0 The kit will include the Super Air Knife with an Automatic Drain Filter Separator and a Pressure Regulator.\u00a0 The Filter Separator<\/a> is a diamond shape and, since it has an Automatic Drain, a triangle is placed at the bottom.\u00a0 Filter Separators are used to clean the compressed air and keep the Super Air Knife clean.\u00a0 The Automatic Drain will discard water and oil from the filter bowl when it accumulates over the float.\u00a0 The next item is the pressure regulator, which is represented by a rectangle with an adjustment knob to \u201cdial in\u201d the desired blowing force.\u00a0 And at the end, we drew a rectangle, which represents a Super Air Knife<\/a>, as marked.<\/p>\n Using the P&ID diagram for the process flow is important.\u00a0 You noticed that the Filter Separator<\/a> would come before the Pressure Regulator<\/a>.\u00a0 This is significant when installing this system.\u00a0 Did you remember the statement above about \u201cusing your compressed air as efficiently as possible\u201d?\u00a0 Inefficiencies come from two basic areas; pressure drop and overusing your compressed air.\u00a0 Pressure drop is based on velocity.\u00a0 The lower the velocity, the lower the pressure drop.\u00a0 For the second part about overusing compressed air, the Pressure Regulator<\/a> will help.\u00a0 You want to use the lowest amount of air pressure as possible for the Super Air Knife to \u201cdo the job\u201d.\u00a0 The lower air pressure will use less compressed air in your operation.<\/p>\n EXAIR products are engineered to be safe, efficient, and effective in your compressed air system.\u00a0 If you need help to place them in your P&ID diagrams, an Application Engineer <\/a>can help you.\u00a0 It is important to have the pneumatic devices in the proper place.\u00a0 If you want to efficiently use your compressed air, you can use EXAIR products for your blow-off devices.\u00a0 We have been doing this for a long time.<\/p>\n John Ball<\/a><\/figure>\n<\/div>\n<\/a>
Application Engineer
Email: johnball@exair.com<\/a>
Twitter: @EXAIR_jb<\/a><\/p>\nLike this:<\/h3>\n