Brass check valves Female thread xFemale thread
Strainer Basket / Screen: The removable internal element that performs the filtration. It is the consumable part of the assembly.
Blow-Off / Drain Connection: A port on the end cap, often fitted with a valve, used to blow down or drain the collected debris without disassembling the strainer.
End Cap or Cover: A removable section that allows for access to the strainer basket for cleaning and maintenance.
Pressure Gauge Ports: Some models include ports upstream and downstream of the screen to monitor the pressure drop (differential pressure), indicating when the strainer needs cleaning.
Connection Type: How it connects to the pipeline.
Threaded (NPT, BSP): Common for smaller line sizes (typically ½"to 2").
Flanged (ANSI, DIN, JIS): Standard for larger line sizes and higher-pressure applications. The flange rating (e.g., 150#, 300#) must match the pipeline.
Socket Weld or Butt Weld: For permanent, high-integrity connections in critical services.
Body Material: Determined by the fluid and operating environment.
Cast Iron: Economical; for water, oil, or gas in non-corrosive services.
Ductile Iron: Stronger than cast iron; for higher pressures.
Carbon Steel: For high-pressure and high-temperature applications (e.g., steam, oil).
Stainless Steel (SS304, SS316): For corrosive fluids, food, beverage, pharmaceutical, and marine applications.
Bronze: For seawater, mild corrosive fluids, and certain steam applications.
