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Dwyer VA1243 | Variable Area Glass Flowmeter | Glass float, 0.104 SCFH air, 0.009 GPH water
The Dwyer VA1243 glass flowmeter uses a glass float and reaches 0.104 SCFH (49 ml/min) on air or 0.009 GPH (0.55 ml/min) on water. It suits lab and pilot-plant liquid or gas measurement, carrier gas metering and process flow indication, and the VA1243 is supplied panel-mount ready.
- VA1243 accuracy ±5% FS at 70°F (21.1°C) and 14.7 psia; repeatability ±0.25% FS
- VA1243 reads on a universal mm scale, with correlation charts for air and water
- Needle valve (6-turn) fitted to the VA1243, with a 16-turn precision valve as an option
- VA1243 connections: two 1/8" female NPT; borosilicate glass flowtube; 10:1 turn-down
- VA1243 mounts vertically, or on an optional acrylic tripod base for bench use
- Specifications
- Features
- Downloads
| Part Number | VA1243 |
| Brand | Dwyer |
| Type | Variable area glass flowmeter |
| Float | Glass |
| Max. Flow (Air) | 0.104 SCFH (49 ml/min) |
| Max. Flow (Water) | 0.009 GPH (0.55 ml/min) |
| Accuracy | ±5% FS at 70°F (21.1°C), 14.7 psia |
| Repeatability | ±0.25% FS |
| Turn-down | 10:1 |
| Connections | Two 1/8" female NPT |
| Flowtube | Borosilicate glass |
| Valve | 6-turn needle valve (16-turn high precision optional) |
| Leak Rate | 1 x 10-7 sccs helium |
| Mounting | Vertical, panel mount |
- Time is saved with a permanently fused ceramic scale with a vertical locator line that lessens parallax and eye strain.
- Long operational life and a magnifying lens to improve reading resolution are features of the robust polycarbonate front cover, which also protects the tube from breaking.
- For flow rate control, a standard 6-turn needle valve replaces the requirement for an additional valve, saving money.
- With the optional acrylic tripod base that enables self-standing bench mounting, no extra installation is needed.
- For extremely low flow rates, great sensitivity control and resolution are possible with high precision metering valves including non-rising stems.
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