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    Checked orifices are a series arrangement of a precision orifice, a ball check valve and an optional screen. The all metal assemblies are made of brass or stainless steel. Gas or liquid can flow in one direction only, at a rate established by the metering orifice. Reverse pressure differential does not result in reverse flow. Standard sizes are 10-32, 1/8" NPT and 1/4" NPT. Custom requirements will be reviewed for large quantity applications.
Unit of Measure

Seal Material

 N/A Loctite 609, 680

Material

 N/A 303 SS

Nominal Orifice Size

 N/A 63

CV

 N/A 0.088

Ball Material

 N/A 304 SS

Maximum Temperature

 N/A 300 ºF

Maximum Operating Pressure

 N/A 2000 psig

Cracking Pressure

 N/A 2 psig

For Sizies

 N/A 1/4" NPT ONLY

Connection A

 N/A 1/4" NPT Male

Connection B

 N/A 1/4" NPT Male

Screened

 N/A Screened

Orifice Diameter

 N/A 0.063 in

Width Across Flats (Hex)

 N/A 9/16 in

Total Length

 N/A 1.38 in

Air Flow at 25 psig

 N/A 122 ft³/h

Air Flow at 100 psig

 N/A 362 ft³/h

Air Flow at Pressure - Standard Cu. Ft. Per Hour (SCFH)

 N/A 25 psig: 122 100 psig: 362

N/A

  • Unidirectional gas or liquid flow
  • Backflow prevention in metering systems
  • Fluid contamination reduction
  • Isolation of fluid sources in mixers
  • Fuel line metering with no reverse flow
  • Medical metering of fluids