It's called a basket strainer for its basket-shape strainer screen is different from other screens. 

1. A basket strainer is applied to filter sundries in the pipeline. The area of its filtration sling is 2-3 times bigger than area of bore size pipeline. 
2. The basket strainer is mainly composed of adapters, cartridge bodies, strainer baskets, flanges, flange covers and fasteners, etc. 
3. The sundries in liquids in the pipeline are collected to the strainer screen by the strainer when liquids flow through the strainer. The cover shall be opened and the screen shall be cleaned in a certain extent.

Product Detail

Design standard: ASME B16.34
Length of structure: ASME B16.10
Flange connecting end: ASME B16.5
Wall thickness: ASME B16.34 
Inspection and test: API 598 
Pressure and temperature rating: ASME B16.34 
Product scope: NPS 2 Inch - NPS 24 Inch, Class 150 - 300 LB 
Main body material: ASTM A216 WCB, ASTM A352 LCB, ASTM A216 WCC, ASTM A217 WC6, ASTM A217 WC9, ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3, ASTM A351 CF3M, ASTM A890 4A, etc.