What Is GPM in Flow Meter?
GPM, short for gallons per minute, is a unit of measurement used in flow meters to indicate the volume of liquid flowing through a system in a one-minute time frame. In essence, it tells you how much liquid is passing through a pipe or a channel per minute. GPM is widely used in various industries and applications, such as water supply systems, irrigation, and fluid transport. Understanding GPM in flow meters is crucial for efficient and accurate flow management, ensuring that your system operates smoothly and effectively.
Flow Meter Units
In the world of flow meters, various units of measurement are used to quantify the flow of liquids or gases. These units help to ensure precise flow control and monitoring across industries. Let’s take a look at some of the commonly used flow meter units:
Gallons per Minute (GPM): As we discussed earlier, GPM is a popular unit for measuring liquid flow, especially in the United States, where the imperial system is widely used.
Liters per Minute (LPM): LPM is another unit for measuring liquid flow, commonly used in countries that follow the metric system. One GPM is approximately equal to 3.785 LPM.
Cubic Meters per Hour (m³/h): This unit measures the volume of gas or liquid flow per hour and is often used in large-scale applications, such as water supply networks and industrial processes.
Standard Cubic Feet per Minute (SCFM): SCFM is a unit for measuring gas flow rates. It represents the volume of gas flowing per minute, corrected to standard conditions of temperature and pressure.
Cubic Feet per Minute (CFM): Similar to SCFM, CFM is a unit for measuring gas flow rates, but without adjusting for temperature and pressure.
By understanding these commonly used flow meter units, you can better select and utilize flow meters for your specific application, ensuring accurate measurements and optimal performance.
Flow Unit Conversion Table
| GPM | LPM | L/h | M3/h |
|---|---|---|---|
| 1 | 3.785 | 227.1 | 0.227 |
| 5 | 18.925 | 1135.5 | 1.135 |
| 10 | 37.85 | 2271 | 2.271 |
Read more about: Top Flow Meters for PVC Pipes: Find Your Ideal Match
Flow Meters with GPM Units
Popular flow meters measuring in GPM
Flow meters with GPM units are widely used to measure liquid flow in various industries. Some popular types of flow meters that measure in GPM include:
| Model | Measure Range | |
| L/H | GPM | |
| GF02 | 0.6-50 | 0.0026-0.2201 |
| GF04 | 5-250 | 0.0220-1.1007 |
| GF06 | 10-500 | 0.0440-2.2014 |
| GF10 | 50-1200 | 0.2201-5.2834 |
| GF15 | 200-3000 | 0.8806-13.2088 |
| GF25 | 1000-12000 | 4.4029-52.8340 |
| GF32 | 2000-20000 | 8.8057-105.6680 |
| Diameter (mm) | Normal flow range (m3/h) | Normal flow range (GPM) | Extended flow range(m3/h) | Extended flow range (GPM) |
| DN 4 | 0.04-0.25 | 0.176-1.1 | 0.04-0.4 | 0.176-1.76 |
| DN 6 | 0.1-0.6 | 0.44-2.64 | 0.06-0.6 | 0.264-2.64 |
| DN 10 | 0.2-1.2 | 0.88-5.28 | 0.15-1.5 | 0.66-6.6 |
| DN 15 | 0.6-6 | 2.64-26.4 | 0.4-8 | 1.76-35.2 |
| DN 20 | 0.8-8 | 3.52-35.2 | 0.45-9 | 1.98-39.6 |
| DN 25 | 1-10 | 4.4-44 | 0.5-1 | 2.2-4.4 |
| DN 32 | 1.5-15 | 6.6-66 | 0.8-15 | 3.52-66 |
| DN 40 | 2-20 | 8.8-88 | 1-20 | 4.4-88 |
| DN 50 | 4-40 | 17.6-176 | 2-40 | 8.8-176 |
| DN 65 | 7-70 | 30.8-308 | 4-70 | 17.6-308 |
| DN 80 | 10-100 | 44-440 | 5-100 | 22-440 |
| DN 100 | 20-200 | 88-880 | 10-200 | 44-880 |
| DN 125 | 25-250 | 110-1100 | 13-250 | 57.2-1100 |
| DN 150 | 30-300 | 132-1320 | 15-300 | 66-1320 |
| DN 200 | 80-800 | 352-3520 | 40-800 | 176-3520 |
| Nominal diameter(DN mm) | Minimum flow measurement range (m3/h) | Maximum flow measurement range (m3/h) | Min flow range (GPM) | Max flow range (GPM) |
| 15 | 0.06 | 6.36 | 0.264 | 28 |
| 20 | 0.11 | 11.31 | 0.485 | 49.78 |
| 25 | 0.17 | 17.67 | 0.748 | 77.77 |
| 32 | 0.28 | 28.94 | 1.234 | 127.43 |
| 40 | 0.45 | 45.23 | 1.984 | 199.02 |
| 50 | 0.71 | 70.68 | 3.127 | 311.21 |
| 65 | 1.19 | 119.45 | 5.241 | 525.64 |
| 80 | 1.81 | 180.95 | 7.968 | 796.97 |
| 100 | 2.82 | 282.74 | 12.41 | 1244.4 |
| 125 | 4.41 | 441.71 | 19.42 | 1944.12 |
| 150 | 6.36 | 636.17 | 27.99 | 2801.58 |
| 200 | 11.31 | 1130.97 | 49.78 | 4978.68 |
| 250 | 17.67 | 1767.14 | 77.77 | 7776.3 |
| 300 | 25.44 | 2544.69 | 111.95 | 11195.44 |
| 350 | 34.63 | 3463.6 | 152.55 | 15255.28 |
| 400 | 45.23 | 4523.89 | 199.02 | 19902.66 |
| 450 | 57.25 | 5725.55 | 251.96 | 25196.66 |
| 500 | 70.68 | 7068.58 | 310.98 | 31098.28 |
| 600 | 101.78 | 10178.76 | 448.06 | 44805.98 |
| 700 | 138.54 | 13854.42 | 609.35 | 60935.07 |
| 800 | 180.95 | 18095.57 | 796.97 | 79697.23 |
| Nominal Diameter (mm) | Flow Range (m3/h) | Flow Range (GPM) |
| 10 | 0.02 – 0.2 | 0.0881 – 0.8806 |
| 15 | 0.075 – 0.75 | 0.3302 – 3.3022 |
| 20 | 0.15 – 1.5 | 0.6604 – 6.6043 |
| 25 | 0.3 – 3 | 1.3209 – 13.2086 |
| 40 | 0.75 – 7.5 | 3.3022 – 33.0215 |
| 50 | 1.2 – 12 | 5.2834 – 52.8344 |
| 80 | 3-30 | 13.2086 – 132.0862 |
| 100 | 5 – 50 | 22.0143 – 220.1435 |
| 150 | 9.5 – 95 | 41.8272 – 418.2724 |
| 200 | 17.4 – 174 | 76.6099 – 766.0991 |
Of course, in addition to the above several flowmeters. Other flow meters can also support GPM unit display. Such as ultrasonic flowmeter, mass flowmeter and so on.
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In conclusion, understanding flow rates and water meter sizes is essential for effective water management, whether you’re a homeowner, business owner, or engineer. GPM, or gallons per minute, is a widely used measurement to indicate the flow rate of water through a meter. By knowing how to read your flow meter and understanding the GPM values for different water meter sizes, you can make more informed decisions about your water usage.
We, Sino-Inst, pride ourselves on being a professional flowmeter supplier with years of experience in the industry. We offer a wide range of flowmeters suitable for various applications, ensuring that you get the perfect solution for your water management needs. So, don’t hesitate to reach out to us for expert advice, top-quality products, and outstanding customer service.
Ready to upgrade your flow meter or need help selecting the right one? Give us a call or visit our website to browse our extensive selection of flowmeters and find the perfect match for your needs. Let Sino-Inst be your go-to partner for all things related to flow measurement and water management.
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Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.