The wrong material can cause leaks, rust, cracks, or fast basket damage. This guide explains how to choose strainer materials, pressure ratings, and special features for harsh media such as fuel, oil, water, acids, and slurry.
Lianke Valve supports harsh flow systems with valves and industrial strainers for chemical, mining, power, food, paper, and wastewater use.
A duplex strainer helps a line keep running during basket cleaning. One chamber filters the flow. The other chamber stays ready for use.
This design can reduce shutdowns in busy plants. It can also help protect pumps, valves, and meters from dirt, rust, chips, and pipe scale.
A double strainer can make sense when the process cannot stop often. It gives workers a safer way to switch chambers and clean one side while the flow continues through the other side.
Key return points include:
The housing material must match the liquid. If the media attacks the body, the strainer can fail early.
Water lines may use cast steel or stainless steel. Fuel and oil lines often use carbon steel or stainless steel. Acid, alkali, or salt-heavy media may need lined material or higher-grade stainless steel.
| Media Type | Possible Material Choice | Main Selection Reason |
| Clean water | Cast steel or stainless steel | Basic rust control |
| Fuel or oil | Carbon steel or stainless steel | Strength and cost balance |
| Seawater | Stainless steel or lined body | Better corrosion control |
| Acid liquid | Fluorine-lined body | Strong chemical resistance |
| Slurry | Wear-resistant metal or lining | Better abrasion control |
Price should not lead the choice alone. A cheaper body can cost more later if it wears fast or leaks under real plant use.
Pressure class must match the true working line. A low-pressure water line may not need the same body as a high-pressure chemical line.
High-pressure service, such as Class 600 or above, needs stronger housing, better sealing, and careful testing. Low-pressure service may focus more on flow rate, basket size, and simple cleaning access.
The flow rate affects body size, basket area, and pressure loss. A small basket may clog fast. A large unit may cost more than the system needs.
Before choosing a unit, confirm these details:
Pressure drop means the pressure loss across the strainer. A clean basket should have a low pressure drop. A dirty basket will raise the pressure drop.
| Check Point | What It Means | Why It Matters |
| Low clean pressure drop | Flow moves with little loss | Saves pump load |
| Rising pressure drop | More flow space in the basket | Signals cleaning time |
| Large open area | Slower flow through the mesh | Helps reduce blockage |
| Thick media | Slower flow through mesh | Needs more basket area |
A simple rule works well. More dirt, thicker liquid, and higher flow need more basket area.
Some media need extra help. Thick oil, wax, and sticky liquid may need a heating jacket. Heat helps the media move more easily through the basket.
Magnetic inserts can catch tiny metal particles. These particles may come from pipe wear, tanks or machines. This helps protect seals, pumps, and other equipment.
Useful custom features may include:
These options may look small. Yet they can improve safety, cleaning speed, and service life.
Overseas buyers need clear details before production. A basket strainer supplier should not choose materials, mesh, or pressure class by guesswork.
Send these five specs before placing an order:
Clear specs help reduce wrong sizing, delays, and extra cost. They also help the supplier choose the right body, basket, seal, and lining.
A good strainer choice starts with the working media. Corrosive liquids need the right body or lining. High-pressure lines need a stronger design. Dirty media needs enough basket area and easy cleaning access.
For this topic, Lianke Valve’s value comes from matching harsh media with suitable materials, pressure design, and custom features. That matters most when buyers need corrosion resistance, abrasion resistance, and stable flow in demanding plant systems.
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