In agricultural applications, the pressure requirements for water belts or layflat hoses can vary depending on the specific irrigation system and crop needs. However, there are commonly used pressure ranges that are suitable for agricultural water belts. These pressures typically fall within the following ranges:

1. Low Pressure: Low-pressure water belts generally operate within the range of 2 to 6 psi (pounds per square inch). These are commonly used for applications such as low-volume irrigation, micro-sprinklers, or drip irrigation systems. They are suitable for delivering water to the root zones of plants with minimal pressure requirements.

2. Medium Pressure: Medium-pressure water belts typically operate within the range of 10 to 30 psi. These are used for various agricultural irrigation methods, including overhead sprinkler systems, impact sprinklers, or solid-set sprinklers. Medium-pressure water belts are capable of covering larger areas and delivering water with moderate pressure for uniform irrigation.

3. High Pressure: High-pressure water belts are designed to handle higher pressure requirements and are typically used for specific applications such as center pivot irrigation systems or traveling guns. These belts can operate at pressures ranging from 30 psi to 150 psi or more, depending on the specific system design and requirements.

It's important to note that the pressure requirements may vary depending on factors such as soil type, crop type, terrain, and specific irrigation system design. It's recommended to consult with agricultural experts, irrigation system designers, or manufacturers to determine the appropriate pressure range for your specific application and to select the corresponding water belt or layflat hose that can handle the desired pressure range safely and efficiently.