Compressed Air Piping Design
May 15th 2020 at.
Compressed air piping design. Pipe diameters of 3. Compressed air piping systems michael frankel cipe utility systems consultants somerset nj introduction compressed air is an often used utility system found in facilities. Look up your compressors maximum flow rate in the left column. Pipe sizing by pressure loss.
It is used to do work by producing linear motion and actuation through a piston and cylinder or adiaphragm forair actuated valves doors dampers brakes andso forth atomizing. The compressed air pipe routing design and dimensions are important factors for the efficiency reliability and cost of compressed air production. Guide to compressed air piping systems last updated on. Compressed air pipe size table.
In a piping system where a feed line of compressed air is trying to feed into another air line the turbulence caused by a 90 entry can cause a 3 to 5 psi pressure loss which increases the operating costs. The most overlooked idea in piping layout and design is air velocity. Air flow rate through a valve. Metal pipe can be black iron copper stainless steel or extruded aluminum alloy.
The british compressed air society suggests that a velocity of 20 fps or less prevents carrying moisture and debris past drain legs and into controls. Piping is a vital component in a compressed air system. Piping systems more than five years old have been shown to exhibit leaks of up to 25 percent yet many facilities are slow to upgrade equipment to the latest technology. Saturated humid air table.
Owners of compressed air piping systems tend to focus on the compressor and think of the piping as less of a concern. Along the way there is a risk of contamination and pressure drops. Cv kvs values. Inefficient compressed air distribution systems result in higher energy bills lower productivity and poor air tool performance.
Air flow rate through piping. Air velocity through piping. Now measure or calculate the total length of your compressed air pipes and look it up in the top row. Air flow rate through an orifice.
Ambient air s impact on compressed air system performance 2 part of the scope of this paper. Excessive velocity can be a root cause of backpressure erratic control signals turbulence and turbulence driven pressure drop. However just as hearts can fail due to clogged arteries compressors can fail due to poor piping. Once air is compressed dried and filtered it is sent to an end use.
Keep these five factors in mind when designing your compressed air piping system to help minimize risk of dirty or poorly pressurized air. Pipe sizing by velocity. Pressure loss through piping. One of the simplest fixes in a compressed air system is to replace tee connections with directional angle entry connections.
Now instead of giving you complicated formulas to calculate the pressure drop here is a simple table that will answer all your pipe sizing questions.