Flow Meters
P-Type — Rotameter
Variable area flow meter · Metal or plastic wetted parts
Select a scale for your application, then choose the available connections and options. Original drawings and the complete source PDF are included below.
Find your meter
Plastic
MetalTechnical data
Application and operating limits
- Service
- Chemical process, water treatment and industrial systems
- Viscosity
- Up to 3 cP
- Accuracy
- ±2.5% of full scale
- Maximum temperature
- Metal: 100°C; plastic: 60°C
- Body pressure limits
- PS / PI: 15 kg/cm²; plastic: 6 kg/cm²
- Tube pressure limits
- Borosilicate glass: 6 kg/cm²; PC: 10 kg/cm²
The complete assembly is limited by its lowest-rated component. Pressure and temperature must be checked together.
Materials and options
- Models
- PS stainless steel, PI steel, PV plastic wetted parts
- Connections
- PT or NPT; male or female
- Indicating tube
- Borosilicate glass or polycarbonate
- Seals
- NBR or Viton
- Protection supporter
- SS304, SS316 or acrylic
- Alarm
- Normally open; one or two setting points
- Switch rating
- AC 125 V / 0.5 A; DC 100 V / 10 W; maximum DC 250 V below 40 mA
Dimensions and construction
| Size | Water L/min | Air NL/min | L (mm) | H (mm) | Thread size |
|---|---|---|---|---|---|
| 6A | 0.03–0.3 | 0.5–5 | 200 | 165 | ¼ in |
| 10A | 0.1–1 | 2–20 | 200 | 165 | ⅜ in |
| 15A | 1–10 | 20–200 | 240 | 200 | ½ in |
| 20A | 2–20 | 30–300 | 280 | 240 | ¾ in |
| 25A | 5–50 | 100–1000 | 280 | 240 | 1 in |
| 32A | 10–100 | 200–2000 | 280 | 240 | 1¼ in |
| 40A | 20–200 | 300–3000 | 305 | 240 | 1½ in |
| 50A | 40–400 | 500–5000 | 315 | 240 | 2 in |
The source does not give an A dimension. Dimensions in millimetres.
Select your P-Type meter
Choose your fluid, units and maximum range to compare the available scales.
Specifications are general selection guidance. Confirm materials, connection standards, operating temperature and pressure with Sightflow before placing an order.