Ralston Instruments QTVC-2MBA-6-3 Volume Controller
Request a quote
Ralston Instruments QTVC-2MBA-6-3 is a pressure volume controller with precise finger-tip control from 0.03 psi to 3000 psi, ideal for instrument calibration.
Product details
| Model | QTVC-2MBA-6-3 |
| Manufacturer | Ralston Instruments |
| Category | Process Controllers |
| Availability | Made to order |
Description
Overview
The Ralston Instruments QTVC-2MBA-6-3 is a compact pressure volume controller designed for precise calibration of pressure instrumentation using nitrogen gas. It features a proprietary pressure-balanced fine adjustment piston that delivers extremely precise finger-tip control from 0.03 psi to 3000 psi (2 mbar to 210 bar), making it suitable for both laboratory and field applications.
Key Features
- Proprietary pressure-balanced fine adjustment piston for precise control at 0.03 psi or 3000 psi
- Compact, lightweight design with fine adjust, fill, balance, and vent valves integrated into one unit
- Soft-seated valves for precise filling and venting
- Quick-test system outlet connections require no thread sealant or wrench
- Low volume hose, gauge adapter, and process connections attach without tools
- Included laboratory stand and optional field strap
- Pressure range: 0–3000 psi (0–207 bar); Vacuum range: 0–10″Hg
- Temperature range: 0–130°F (–18–54°C)
- Made in U.S.A.
Applications
- Calibration of low-pressure instrumentation
- Calibration of high-pressure instrumentation
- Laboratory pressure testing
- Field pressure instrument verification
Included Accessories
- QTVC Assembly (volume controller)
- Gauge Adapter — 1/4″ male NPT × female Quick-test, brass
- Quick-test hose — 6 ft (1.83 m) long with brass hose ends
- Quick-test hose — 3 ft (92 cm) long with brass hose ends
- Hose Adapter — 1/4″ male NPT × male Quick-test, brass (×2)
Specifications
| Pressure Range | 0 to 3000 psi (0 to 207 bar) |
| Vacuum Range | 0 to 10″Hg (0 to 254 mmHg) |
| Temperature Range | 0 to 130°F (-18 to 54°C) |
| Fine Adjust Resolution | ±0.0005 PSI (0.03 mbar) |
| Weight | 5.98 lb (2.7 kg) |
| Dimensions (H × W × D) | 6.16 × 8.5 × 7.38 in (15.65 × 21.59 × 18.75 cm) |
| Construction Materials | Aluminum, Anodized Aluminum, Brass, Plated Steel, Stainless Steel |
| Seal Materials | Buna-N, Delrin, Teflon |
| Pressure Media | Nitrogen, inert gas |
| Inlet Port | QTVC Outlet port, male Quick-test, brass |
| Outlet Ports | 3 QTVC Outlet ports, male Quick-test with caps and chains, brass |
| Fill and Vent Valves | Soft-seated construction |
| Mechanical Rotation | 42 turns (pressure-balanced) |
Request a quote
Ralston Instruments QTVC-2MBA-6-3 Volume Controller
Response within 24 hours
No obligation
Direct communication