Which type of meter is most commonly used on small diameter domestic services?

Which type of meter is most commonly used on small diameter domestic services?

• A. Positive displacement meter
• B. Electromagnetic meter
• C. Mutating disc meter
• D. Ultrasonic meter

Answer: (A)

The positive displacement meter is the most commonly used type of meter for small diameter domestic services due to its reliable and accurate measurement of water flow at low flow rates, which is typical for residential usage. These meters operate by capturing a known volume of water in a chamber and then counting how many times the chamber fills to measure the total volume of water passing through the meter. This design allows them to provide precise measurements, even when water usage is minimal, which is a common scenario in residential settings where households may not have high water demands. In contrast, while other types of meters, such as electromagnetic or ultrasonic meters, offer advantages in certain applications or larger systems, they are generally more suitable for larger service lines or commercial applications. For instance, electromagnetic meters require a minimum flow rate for accurate operation and might not perform well in scenarios with fluctuating or very low flows typical in domestic settings. Similarly, ultrasonic meters are generally more costly and not as commonly used for small domestic services due to their complexity and installation requirements. Thus, the positive displacement meter stands out in this context for its effectiveness and efficiency in measuring small volumes of water accurately, making it the standard choice for domestic water supply applications.

The positive displacement meter is the most commonly used type of meter for small diameter domestic services due to its reliable and accurate measurement of water flow at low flow rates, which is typical for residential usage.

These meters operate by capturing a known volume of water in a chamber and then counting how many times the chamber fills to measure the total volume of water passing through the meter. This design allows them to provide precise measurements, even when water usage is minimal, which is a common scenario in residential settings where households may not have high water demands.

In contrast, while other types of meters, such as electromagnetic or ultrasonic meters, offer advantages in certain applications or larger systems, they are generally more suitable for larger service lines or commercial applications. For instance, electromagnetic meters require a minimum flow rate for accurate operation and might not perform well in scenarios with fluctuating or very low flows typical in domestic settings. Similarly, ultrasonic meters are generally more costly and not as commonly used for small domestic services due to their complexity and installation requirements.

Thus, the positive displacement meter stands out in this context for its effectiveness and efficiency in measuring small volumes of water accurately, making it the standard choice for domestic water supply applications.