Overview Ralston NPT Male Quick-test Fittings QTFT-2MB0
A removable cap provides easy access to connect a Quick-test hose to the process for calibration purposes and is easily sealed bubble-tight again when calibration is complete
- Connect to pressure transmitters, EFMs, Flow Computers and other NPT devices under test using thread sealant for a permanent connection
- A Cap and chain makes calibration easy and quick by connecting and disconnecting a hose without a wrench or thread sealant
- Made in USA

Model | Max Pressure | End 1 Connector | End 2 Connector | Check Valve | Cap and Chain | Materials |
QTHA-0.5MB0 | 5000 PSI / 350 bar / 35 MPa | 1/16″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Brass |
QTHA-1MB0 | 5000 PSI / 350 bar / 35 MPa | 1/8″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Brass |
QTHA-1MB1 | 3000 PSI / 200 bar / 20 MPa | 1/8″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Brass |
QTHA-1MS0 | 5000 PSI / 350 bar / 35 MPa | 1/8″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Stainless Steel |
QTHA-1MS1 | 3000 PSI / 200 bar / 20 MPa | 1/8″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Stainless Steel |
QTHA-2MB0 | 5000 PSI / 350 bar / 35 MPa | 1/4″ Male NPT (ASME B1.20.1) | Male Quick-test | No | Brass | |
QTHA-2MB1 | 3000 PSI / 200 bar / 20 MPa | 1/4″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Brass |
QTHA-2MS0 | 5000 PSI / 350 bar / 35 MPa | 1/4″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Stainless Steel |
QTHA-2MS1 | 3000 PSI / 200 bar / 20 MPa | 1/4″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Stainless Steel |
QTHA-3MB0 | 5000 PSI / 350 bar / 35 MPa | 3/8″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Brass |
QTHA-3MB1 | 3000 PSI / 200 bar / 20 MPa | 3/8″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Brass |
QTHA-3MS0 | 5000 PSI / 350 bar / 35 MPa | 3/8″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Stainless Steel |
QTHA-3MS1 | 3000 PSI / 200 bar / 20 MPa | 3/8″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Stainless Steel |
QTHA-4MB0 | 5000 PSI / 350 bar / 35 MPa | 1/2″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Brass |
QTHA-4MB1 | 3000 PSI / 200 bar / 20 MPa | 1/2″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Brass |
QTHA-4MS0 | 5000 PSI / 350 bar / 35 MPa | 1/2″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Stainless Steel |
QTHA-4MS1 | 3000 PSI / 200 bar / 20 MPa | 1/2″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Stainless Steel |
QTHA-6MB0 | 5000 PSI / 350 bar / 35 MPa | 3/4″ Male NPT (ASME B1.20.1) | Male Quick-test | No | No | Brass |
QTHA-6MB1 | 3000 PSI / 200 bar / 20 MPa | 3/4″ Male NPT (ASME B1.20.1) | Male Quick-test | Yes | No | Brass |
Source: ralstoninst.com
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