General Information
Dwyer DTFO Series Dial Variable-Area Flow Meter for Liquids measures oil rates with ±2% of full-scale accuracy at an affordable price. Durable metal construction ensures great reliability and the strength to withstand system pressures of up to 3000 psig (200 bar). Available in 1/4″, 1/2″, and 1″ connections for a wide variety of applications. Comes calibrated for horizontal in-line mounting.
Dwyer offers different types of Dial Flowmeters for various applications. Flow meters measure water, oil, gas or airflow rates. Applications include calculating required fill or drain times for tanks, water towers, backflow prevention, heat exchangers, and oil & gas equipment.
Dwyer DTFO Series Features
- Durable metal construction ensures great reliability and the strength to withstand system pressures of up to 3000 psig (200 bar)
- Shatter proof construction, unlike glass tube variable area flowmeters, yields long operation life
- Preform precisely in high temperature, high vibration, shock-prone environments
Application
- Monitoring pressure drop across filters or strainers
- Flow scale based on differential pressure
- Liquid level is given pressure differential between bottom and top of the tank
- Hydraulic equipment
- Oil & gas equipment
- Heat exchangers
- Backflow prevention
Dwyer DTFO Series Specification
| Service | Compatible oils. |
| Wetted Materials | > Body: 316 SS or brass; |
| Spring: 302SS; | |
| Range spring: 302 SS; | |
| Magnet: PTFE-coated; | |
| Metering cone: Acetal or PTFE; | |
| Seals: Buna. | |
| Temperature Limits | -40 to 200°F ( -40 to 93°C). |
| Pressure Limit | > DTFO-1B and DTFO-2B: 3000 psig (200 bar); |
| DTFO-3S: 1500 psig (100 bar). | |
| Accuracy | ±2% FS |
| Repeatability | ±1% FS. |
| Size | Diameter dial face 2.5″ (63.5 mm). |
| Weight | > DTFO-1B: 3 lb (1.36 kg); |
| DTFO-2B: 5 lb (2.27 kg); | |
| DTFO-3S: 10 lb (4.54 kg). |
Model Chart
| Model | Range, SCFM B | Body | Connection |
| DTFA-1A-10A | 1.5 to 10 | Aluminum | 1/4˝ NPT |
| DTFA-1A-15A | 2.0 to 15 | Aluminum | 1/4˝ NPT |
| DTFA-1A-20A | 3.0 to 20 | Aluminum | 1/4˝ NPT |
| DTFA-1A-25A | 3.0 to 25 | Aluminum | 1/4˝ NPT |
| DTFA-2A-30A | 3.0 to 30 | Aluminum | 1/4˝ NPT |
| DTFA-2A-40A | 4.0 to 40 | Aluminum | 1/4˝ NPT |
| DTFA-2A-50A | 4.0 to 50 | Aluminum | 1/4˝ NPT |
| DTFA-2A-75A | 5.0 to 75 | Aluminum | 1/4˝ NPT |
| DTFA-2A-100A | 10.0 to 100 | Aluminum | 1/4˝ NPT |
Download Data Sheet: Series DTFO Dial Variable-Area Flow Meter for Oil
Ref: dwyer-inst.com
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