
1. Main Features of Basket-Type Strainer:
Large basket volume, can hold a large amount of impurities, and can be maintained without shutting down the system;
2. Advantages, Disadvantages, and Applicable Operating Conditions of Different Types of Strainers:
2.21 Advantages of Basket-Type Strainers
① Large filter basket volume, extremely strong dirt-holding capacity, can operate for a long time without cleaning;
② Supports large diameter and high flow conditions (DN25~DN1200 can be manufactured);
③ Can be made with a quick-opening structure, cleaning the filter basket can be completed in minutes by opening the cover, some can be equipped with a bypass to achieve non-stop cleaning;
④ The filter screen is subjected to uniform stress, not easily damaged under high pressure and high flow rate;
⑤ Can be equipped with multi-layer filter screens and magnetic filter screens, suitable for viscous media.
2.22 Disadvantages of Basket Type Strainers
① Large overall size, occupies a lot of space, and cannot be installed in narrow pipe corridors
② Cost is much higher than Y-type filters;
③ Sludge easily accumulates at the bottom when installed vertically, and viscous media tend to accumulate and clump;
④ Uneconomical for small pipe diameters.
2.23 Main Application Areas of Basket Type Strainers
① Chemical raw materials, wastewater treatment, large-diameter circulating water pipelines;
② Crude oil, heavy oil, slurry, and industrial fluids with high impurity content;
③ Power plant circulating water, water treatment systems, and front-end filtration for wastewater treatment pump stations;
④ Coal chemical industry, chemical fiber slurry, coatings, and viscous liquid filtration;
⑤ Main pre-filter for large pump sets and heat exchangers.
3. Selection Recommendations:
3.4 For high-flow-rate systems with many impurities and long-term continuous operation, a Basket-type Strainer is recommended.
3.5 For viscous chemical slurries and wastewater, a Basket-type Strainer is recommended.
3.6 For viscous media containing a large number of solid particles, a Basket-type Strainer is recommended.