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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.
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Orifice Diameter (in)

Material

Nominal Orifice Size

CV

Cracking Pressure (psig)

Connection

Screened

Part Number

Orifice Diameter

Material

CV

Maximum Fitting PRESSURE

DIFFERENTIAL CRACK PRESSURE

Screened

N/A 0.043 in N/A 303 SS N/A 0.041 N/A 200 psig N/A 15 psig N/A None
N/A 0.047 in N/A 303 SS N/A 0.048 N/A 200 psig N/A 15 psig N/A None
N/A 0.052 in N/A 303 SS N/A 0.059 N/A 200 psig N/A 15 psig N/A None
N/A 0.055 in N/A 303 SS N/A 0.068 N/A 200 psig N/A 15 psig N/A None
N/A 0.06 in N/A 303 SS N/A 0.081 N/A 200 psig N/A 15 psig N/A None
N/A 0.063 in N/A 303 SS N/A 0.088 N/A 200 psig N/A 15 psig N/A None
N/A 0.0670 in N/A 303 SS N/A 0.100 N/A 200 psig N/A 15 psig N/A None
N/A 0.0700 in N/A 303 SS N/A 0.110 N/A 200 psig N/A 15 psig N/A None
N/A 0.0730 in N/A 303 SS N/A 0.120 N/A 200 psig N/A 15 psig N/A None
N/A 0.0760 in N/A 303 SS N/A 0.130 N/A 200 psig N/A 15 psig N/A None
N/A 0.0790 in N/A 303 SS N/A 0.140 N/A 200 psig N/A 15 psig N/A None
N/A 0.0810 in N/A 303 SS N/A 0.150 N/A 200 psig N/A 15 psig N/A None
N/A 0.0860 in N/A 303 SS N/A 0.170 N/A 200 psig N/A 15 psig N/A None
N/A 0.0890 in N/A 303 SS N/A 0.180 N/A 200 psig N/A 15 psig N/A None
N/A 0.0940 in N/A 303 SS N/A 0.200 N/A 200 psig N/A 15 psig N/A None
N/A 0.0102 in N/A Brass N/A 0.0025 N/A 2000 psig N/A 0 psig N/A None
N/A 0.011 in N/A Brass N/A 0.0028 N/A 2000 psig N/A 0 psig N/A None
N/A 0.0122 in N/A Brass N/A 0.0034 N/A 2000 psig N/A 0 psig N/A None
N/A 0.013 in N/A Brass N/A 0.0038 N/A 2000 psig N/A 0 psig N/A None
N/A 0.0142 in N/A Brass N/A 0.0043 N/A 2000 psig N/A 0 psig N/A None
N/A 0.015 in N/A Brass N/A 0.005 N/A 2000 psig N/A 0 psig N/A None
N/A 0.016 in N/A Brass N/A 0.0055 N/A 2000 psig N/A 0 psig N/A None
N/A 0.017 in N/A Brass N/A 0.0067 N/A 2000 psig N/A 0 psig N/A None
N/A 0.018 in N/A Brass N/A 0.0073 N/A 2000 psig N/A 0 psig N/A None
N/A 0.019 in N/A Brass N/A 0.008 N/A 2000 psig N/A 0 psig N/A None
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