Metal Tube Flow Meter OF100
Technical Data
OF100 — Piston-type flow switch and indicator for high-viscosity service.
- Service
- Water, oil, other liquids and gases.
- Flow
- 15–30,000 L/h water; 0.4–740 Nm³/h air.
- Accuracy
- ±3% F.S.; ±2.5% F.S. on request.
- Sizes
- ¼–2½ in.
- Connections
- NPT; flange on request.
- Temperature
- −40 to +180°C.
- Working pressure
- 30 kg/cm². Options: 100 kg/cm² for 1 in or smaller; 200 kg/cm² for 1½ in or larger.
- Housing
- NS, CS, MS: aluminium alloy. ES: SS316. Safety-glass lens.
- Wetted parts
- SS316; Teflon-lined float for gas applications.
- Mounting
- Vertical or horizontal.
- Protection
- IP66; explosion-proof options as listed in ordering table.
Principle and original approvals
Dimensions — mm
Swipe across a drawing to see all details.
Alarm / Analog output
Swipe across a drawing to see all details.
Standard Scales
| Tube | L/h Water 20°C | Nm³/h Air 0°C, 1.013 bar | A | B — mm | C | BSP/NPT |
|---|---|---|---|---|---|---|
| OF101 | 15–70 | — | 150 | ¼ in | ||
| OF102 | 18–80 | 0.4–2 | 150 | ¼ in | ||
| OF103 | 20–100 | 0.5–2.5 | 150 | ¼ in | ||
| OF104 | 25–125 | 0.6–3.2 | 150 | ¼ in | ||
| OF105 | 30–150 | 0.75–3.8 | 150 | ¼ in | ||
| OF106 | 40–210 | 1–5 | 150 | ½ in | ||
| OF107 | 60–330 | 1.5–7.5 | 150 | ½ in | ||
| OF108 | 70–400 | 1.6–8 | 150 | ½ in | ||
| OF109 | 120–650 | 3–15 | 150 | ½ in | ||
| OF110 | 160–800 | 4–20 | 150 | ½ in | ||
| OF111 | 190–950 | 4.8–24 | 150 | ½ in | ||
| OF112 | 300–1500 | 6.4–32 | 150 | ½ in | ||
| OF113 | 200–1000 | 8–40 | 150 | ¾ in | ||
| OF114 | 350–1900 | 10–50 | 150 | ¾ in | ||
| OF115 | 500–2700 | 13–65 | 150 | ¾ in | ||
| OF116 | 700–3500 | 18–90 | 150 | 1 in | ||
| OF117 | 800–6000 | 20–150 | 150 | 1 in | ||
| OF118 | 800–6000 | 20–150 | 160 | 1½ in | ||
| OF119 | 900–7000 | 23–175 | 160 | 1½ in | ||
| OF120 | 2000–14000 | 70–350 | 160 | 1½ in | ||
| OF121 | 1500–20000 | 100–500 | 160 | 2 in | ||
| OF122 | 2000–16200 | 50–400 | 160 | 2½ in | ||
| OF123 | 3000–30000 | 140–740 | 160 | 2½ in |
Accuracy: ±3% F.S.; ±2.5% F.S. on request.
Flow direction
Water 20°C; Air 0°C and 1.013 bar. Dimensions B: 150 mm through 1 in, 160 mm for 1½–2½ in. Columns A and C are blank in the PDF. Published table connections are BSP/NPT; flange suitability is confirmed with the enquiry. Technical data are subject to change.
Build your OF100 ordering code
Select the options in the same order as the PDF. Each choice shows its ordering code.