Flow Meters
SF350 Series — Flow Meter
Spring type · Liquid and oil
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
SF350 Series
Technical data
Application and operating limits
- Service
- Liquid and oil
- scale
- Water
- Mounting
- Vertical or horizontal; four flow directions
- Accuracy
- ±5% of full scale
- Working pressure
- 1.2 MPa
- Test pressure
- 2.0 MPa with water at 25°C
- Temperature
- PC: −10 to 60°C; PSU: −10 to 110°C
- Weight
- 0.5–0.6 kg
Materials and connections
- Body
- Polycarbonate; polysulfone available
- O-ring
- Viton
- Float
- PPS plastic
- Spring
- SS316
- Connection material
- SS316
- Female NPT sizes
- ¾ in, 1 in, 1¼ in, 1½ in
- Alarm
- One setting point; form A normally open bistable reed switch
- Switch rating
- AC 125 V / 0.5 A; DC 100 V / 10 W; maximum DC 250 V <40 mA
- Alarm setting range
- 10% to 80% of full scale
Dimensions and construction
| NPT female | L (mm) | W (mm) |
|---|---|---|
| ¾ in, 1 in | 165.5 | 55 |
| 1¼ in, 1½ in | 175 | 60 |
| Height | Inner span | Width / inner width | Mounting holes | Thread | Support |
|---|---|---|---|---|---|
| 186.3 | 132.5 | 85 / 60 | Ø5.5; Ø5 | M5 | SS316 |
Additional offsets 3, 20 and 30 mm are shown on the complete drawing.
| Code | Water (LPM) | NPT female |
|---|---|---|
| A | 7–70 | ¾ in or 1 in |
| B | 10–100 | ¾ in or 1 in |
| C | 15–150 | ¾ in or 1 in |
| D | 20–200 | 1¼ in or 1½ in |
| E | 25–250 | 1¼ in or 1½ in |
| Code | Direction |
|---|---|
| BT | Bottom to top |
| TB | Top to bottom |
| RL | Right to left |
| LR | Left to right |
Select your SF350 Series 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.