Description
The Ralston QTVC-3KPSIG-FL is a pressure calibration kit that pairs the QTVC volume controller with a 3000 psi FieldLab digital gauge. The controller uses a pressure-balanced fine adjustment piston and soft-seated fill, balance and vent valves, which let a technician set very low or high pressures by hand with small, controlled steps. Quick-test hoses and fittings connect to the device under test without thread sealant or tools. Instrument technicians use the kit to check gauges, transmitters and switches on the bench or in the field.
Key features
- Pressure-balanced fine adjust piston for fingertip control
- Fill, balance, vent and fine adjust functions in one compact unit
- Soft-seated valves for precise filling and venting
- Quick-test connections that seal by hand without wrenches or tape
- Includes 3000 psi / 200 bar FieldLab reference gauge
- Made in the USA
Typical applications
- Calibrating pressure gauges and transmitters
- Testing pressure switches and relief settings
- Hydraulic and pneumatic field calibration
- Bench calibration in instrument shops
Specifications
| Brand | Ralston Instruments |
|---|---|
| Model | QTVC-3KPSIG-FL |
| Product type | Pressure volume controller calibration kit |
| Control range | 0.03 psi (2 mbar) to 3000 psi (210 bar) |
| Reference gauge | FieldLab FLP1-GR-QF, 3000 psi / 200 bar / 20 MPa |
| Connections | Quick-test system |
| Hoses | 6 ft stainless and 3 ft brass Quick-test hoses, rated 6900 psi |
| Process adapters | 1/4 in male NPT x male Quick-test, brass (2) |
| Origin | USA |
What’s included
- QTVC volume controller assembly
- Quick-test 6900 psi hose, stainless steel ends, 6 ft (QSQS-HOS-6ft)
- Quick-test 6900 psi hose, brass ends, 3 ft (QTQT-HOS-3ft)
- Two 1/4 in male NPT x male Quick-test brass process connections (QTHA-2MB0)
- FieldLab 3000 psi pressure gauge with female Quick-test bottom connection (FLP1-GR-QF)





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