C20S

Female-to-Female
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Dimensions
Available Model Codes
Flow Rating
Description

Check valves operate on slight differential pressure. Free flow is permitted in the direction of the arrow, positive check in the opposite direction.

Features and Benefits
  • Elastomer-Free (no O-rings)
  • Leak-Tight Ball Check standard for various medias
  • Bubble-Tight Poppet Check with O-ring optional
Specifications
Max Operating Pressure (psi)
5000
Max Operating Pressure (bar)
345
Max Flow gpm
3.00
Max Flow lpm
11.40
Max Cracking Pressure psi
2.50
Max Cracking Pressure bar
0.17
Cv Factor
0.54
Port Size
1/4"
Port Type
NPTF
Material
Steel
Recommended Operating Tempature Range (°F)
-30 to +400
Recommended Operating Tempature Range (°C)
-34 to +204
  • Maximum Operating Pressure (non-Shock Service)
    • Brass: 2,000 psi (138 bar)
    • Carbon Steel: 5,000 psi (345 bar)
    • Stainless Steel: 5,000 psi (345 bar)
  • Maximum Operating Pressure (Poppet Check)
    • Brass & Stainless Steel: 60 psi (4 bar)
  • Cracking Pressure
    • 1 to 2.5 psi (.07 to .17 bar). Soft seat poppet check valves if left seated for a period of time, will have the rubber adhere to the metal it is in contact with. This results in an initial high crack point due to sticking. The degree depends on many things (time seated, pressure, etc.).
  • Operating Temperature range
    • -30° to +400° F (-34° to +204° C)
  • Operating Temperature range (Poppet Check)
    • -15° to +400° F (-26° to +204° C)
  • Threads
    • NPTF
  • Materials
    • Body, Plug: Brass, Steel, Stainless Steel 303
    • Collar: Stainless Steel 303
    • Ball: Stainless Steel 440
    • Poppet: Brass or Stainless Steel 303 with Viton O-Ring
    • Spring: Stainless Steel 302