Product Information
Filters are the most basic debris-catching devices in a water treatment system. Industrial water filters usually sit after the pump or at the front of a pipe network to protect downstream valves, instruments, and heat exchangers. A pipeline strainer installs directly inline, has a compact form, and fits where space is tight. The design isn't complicated, but the wrong selection can mean clogging or excessive pressure drop, so screen rating and material need to match the water quality.
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Working Principle
Water enters through the inlet, passes through the internal screen or basket, and suspended solids and debris get trapped on the screen surface. Clean water flows out through the outlet. As debris builds up, the pressure drop between inlet and outlet slowly climbs, and once it hits the set point, the screen needs cleaning or replacement. Some industrial water filters have a backwash function that uses reverse flow to flush debris off the screen. Pipeline strainers are usually Y-type or basket type—just open the cover and pull out the basket for cleaning. The whole process is physical interception and doesn't change the water's chemical properties.
Application Fields
1.Industrial circulating water: pre-pump protection and pump discharge filtration to keep debris out of heat exchangers.
2.Central air conditioning: upstream of chilled or cooling water lines to protect terminal equipment.
3.Municipal water supply: ahead of community supply networks or booster stations to catch pipe debris.
4.Chemical and pharmaceutical: material filtration on process lines to keep downstream equipment safe.
FAQ
Q1: How do you pick the screen rating for a filter?
A: It comes down to what's downstream and how big the particles are. For heat exchanger protection, a coarse 1–3 mm screen is typical. For precision instruments, around 0.5 mm. Process material filtration may need ratings down to tens of microns. Too fine means more pressure drop and more frequent cleaning; too coarse and it doesn't protect anything.
Q2: What material are pipeline strainers usually made of?
A: Coated carbon steel is the most common—low cost and fine for general industrial water. Stainless steel suits corrosive water or food and pharmaceutical use. The screen matches the housing, usually 304 or 316L, though copper or nylon mesh shows up in some special cases.
Q3: What should I do if the pressure drop gets too high?
A: Check the pressure gauge first—if it's above the set point, the screen is clogged. If it has backwash, run a backwash cycle. If not, shut down and pull the screen for cleaning. If the pressure drop stays high after cleaning, the screen may be too fine or the flow rate too high—step up to a larger filter.