In terms of pressure differential, what indicates the usage of carbon seals?

Carbon seals are specifically designed to operate effectively in environments where low pressure differentials exist. These seals utilize the unique properties of carbon to provide a low-friction surface that can withstand slight misalignments and variations in the shaft movement.

When pressure differentials are low, the chance of fluid leakage is minimized, which is crucial for applications where maintaining sealed conditions is essential. The design of carbon seals helps to effectively contain fluids under these conditions, preventing wear and extending the lifespan of both the seal and the equipment it protects. This makes them particularly suitable for applications such as pumps, compressors, and turbines where low pressure differentials can occur.

In contrast, seals designed for high or variable pressure differentials would inherently require different materials and designs that can cope with those stresses. Hence, the use of carbon seals aligns specifically with the requirement for low pressure differentials, making them the appropriate choice in that context.