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Dwyer VA12420 | Variable Area Glass Flowmeter | SS float, 52.3 SCFH air, 11.81 GPH water
Rated for up to 52.3 SCFH air (24680 ml/min) and 11.81 GPH water (745 ml/min), the Dwyer VA12420 glass flowmeter is fitted with a stainless steel float. Supplied fully assembled for the panel, the VA12420 meters carrier gases and indicates liquid or gas flow in labs, pilot plants and processes.
- Accuracy of the VA12420: ±2% FS (70°F, 14.7 psia), with ±0.25% FS repeatability
- Air and water correlation charts accompany the universal mm scale of the VA12420
- Standard 6-turn needle valve on the VA12420; 16-turn high precision valve offered separately
- Borosilicate glass tube, 10:1 turn-down and two 1/8" female NPT ports (VA12420)
- For bench use, the VA12420 can sit on an optional acrylic tripod base
- Specifications
- Features
- Downloads
| Part Number | VA12420 |
| Brand | Dwyer |
| Type | Variable area glass flowmeter |
| Float | Stainless steel |
| Max. Flow (Air) | 52.3 SCFH (24680 ml/min) |
| Max. Flow (Water) | 11.81 GPH (745 ml/min) |
| Accuracy | ±2% 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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