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Ralston Instruments
P.O. Box 340
Novelty, Ohio 44072
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Recommended Stocking List for Ralston Instruments Distributors

ModelConnectionEnd 2 ConnectorMaterials
QTFT-2MB01/4" Male NPT (ASME B1.20.1)Male Quick-testBrass
QTHA-2MB01/4" Male NPT (ASME B1.20.1)Male Quick-testBrass
QTQT-HOS-3ft  Brass
QTFT-CAPBFemale Quick-test Brass
QTHA-2TB01/4" Male Tube FittingMale Quick-testBrass
QTFT-2MS01/4" Male NPT (ASME B1.20.1)Male Quick-testStainless Steel
QTFT-2MB11/4" Male NPT (ASME B1.20.1)Male Quick-testBrass
QTHA-3TB03/8" Male Tube FittingMale Quick-testBrass
QTHA-1MB01/8" Male NPT (ASME B1.20.1)Male Quick-testBrass
QTHA-2FBA
1/4" Female NPT (ASME B1.20.1)
Female Quick-test
Brass
QTHA-4TB01/2" Male Tube FittingMale Quick-testBrass
QTHA-2MS01/4" Male NPT (ASME B1.20.1)Male Quick-testStainless Steel
QTHA-HSHSMale Quick-testMale Quick-testBrass
QTHA-2FB01/4" Female NPT (ASME B1.20.1)Male Quick-testBrass
QTFT-CAPSFemale Quick-test Stainless Steel
QTHA-FRS05/16-24 Male DP Transmitter/Gauge valveMale Quick-testStainless Steel
QTHA-1MBA1/8" Male NPT (ASME B1.20.1)Female Quick-testBrass
QTHA-2MBA1/4" Male NPT (ASME B1.20.1)Female Quick-testBrass
QTFT-2MS1Male Quick-test1/4" Male NPT (ASME B1.20.1)Stainless Steel

Hand Pumps, Nitropaks, Calibration Manifolds, Volume Controllers

ModelMax PressurePressure MediaMaterials
QTHP-2FBA5000 PSI / 350 bar / 35 MPaLiquidAnodized Aluminum <br> Brass <br> Stainless Steel <br> Polysulfone
DP0V-0000125 PSI / 8.6 bar / 860 kPaAirAnodized Aluminum <br> Brass <br> Stainless Steel
DPPV-0000125 PSI / 8.6 bar / 860 kPaAirAnodized Aluminum <br> Brass <br> Stainless Steel
QTCM-0000-0-03000 PSI / 200 bar / 20 MPaNitrogen <br> inert gasBrass
DCAP-0000650 PSI / 45 bar / 4.50 MPaAirAnodized Aluminum <br> Stainless Steel
DCAP-PV-0000650 PSI / 45 bar / 4.50 MPaAirAnodized Aluminum <br> Stainless Steel
NPAK-0000-0-03000 PSI / 200 bar / 20 MPaNitrogen <br> inert gasABS Plastic <br> Aluminum <br> Anodized Aluminum <br> Brass <br> Plated Steel <br> Stainless Steel <br> Zippered Nylon with Velcro
XREG-KIT03000 PSI / 200 bar / 20 MPa Anodized Aluminum <br> Stainless Steel
QTVC-0000-0-03000 PSI / 200 bar / 20 MPaNitrogen <br> inert gasAnodized Aluminum <br> Brass <br> Plated Steel <br> Stainless Steel

Pressure References

ModelMax PressureMeasurement TypeAccuracy - Pressure Measurement
FLP1-GJ-2M100 PSI / 7 bar / 700 kPaGauge Pressure+/- 0.02% of Full Scale (0-20% of Full Scale) <br> +/- 0.1% of Reading (20-100% of Full Scale)
FLP1-GR-2M3000 PSI / 200 bar / 20 MPaGauge Pressure+/- 0.02% of Full Scale (0-20% of Full Scale) <br> +/- 0.1% of Reading (20-100% of Full Scale)
FLP1-GT-2M5000 PSI / 350 bar / 35 MPaGauge Pressure+/- 0.02% of Full Scale (0-20% of Full Scale) <br> +/- 0.1% of Reading (20-100% of Full Scale)
LC10-GR2M3000 PSI / 200 bar / 20 MPaGauge Pressure+/- 0.25% of Full Scale (ASME B40.100 Grade 3A/ISO Class 0.25)
LC10-GL2M300 PSI / 20 bar / 2.00 MPaGauge Pressure+/- 0.25% of Full Scale (ASME B40.100 Grade 3A/ISO Class 0.25)
LC10-GP2M1000 PSI / 70 bar / 7.00 MPaGauge Pressure+/- 0.25% of Full Scale (ASME B40.100 Grade 3A/ISO Class 0.25)
LC10-GT2M5000 PSI / 350 bar / 35 MPaGauge Pressure+/- 0.25% of Full Scale (ASME B40.100 Grade 3A/ISO Class 0.25)