Line filtration in pipelines: the device that places a screen across a flow channel to remove rust, scale, and debris from a liquid stream is called a

Introduction / Context:
Protecting pumps, valves, and heat exchangers from debris requires simple inline devices. While many separation units exist, the simplest is a screen that intercepts large particles from the flowing liquid.

Given Data / Assumptions:

• Liquid service in a pipe or channel.
• Target removal: rust flakes, scale, fibers, and chips.
• Device uses a physical screen or perforated basket.

Concept / Approach:
A strainer installs a screen across the flow to trap debris while allowing liquid to pass. A thickener concentrates slurry solids by gravity; a classifier separates by size in a fluid; a clarifier settles fine particles to produce a clear overflow. Only a strainer fits the described inline, coarse screening function.

Step-by-Step Solution:
Map definition to device: screen across flow → strainer.Eliminate: thickener/clarifier (gravity settlers), classifier (hydraulic size separation).

Verification / Alternative check:
Common types include Y-strainers and basket strainers; both incorporate removable screens for cleaning.

Why Other Options Are Wrong:
Thickener/clarifier: tank-based, not inline.Classifier: uses fluid velocity differences; no fixed screen across a pipeline.

Common Pitfalls:
Using ultra-fine mesh strainers where pressure drop becomes excessive; fine clarification belongs to filters or membrane systems.

Final Answer:
strainer