Flow Meters

SF400 Series — Flow Meter

Name: SF400 Series — Flow Meter
Brand: Sightflow

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

SF400 Series Original source approval marks

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

Materials and connections

Body: Polycarbonate; polysulfone available
O-ring: Viton
Float: SS316
Spring: SS316
Connection material: SS316, PVC or PVDF
Female NPT sizes: 1½ in or 2 in
Alarm: Without alarm switch

Dimensions and construction

SF400 dimensions and ranges
Code	Water (LPM)	NPT female	L (mm)	Width (mm)
A	25–250	1½ in	385	55
B	50–500	2 in	415	55

Flow directions
Code	Direction
BT	Bottom to top
TB	Top to bottom
RL	Right to left
LR	Left to right

Select your SF400 Series meter

Choose your fluid, units and maximum range to compare the available scales.

1–3. Your flow requirements

1. Fluid2. Flow units3. Max flow range

4. Choose a matching meter

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6. Your selection

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Selected referenceComplete your selection above

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Specifications are general selection guidance. Confirm materials, connection standards, operating temperature and pressure with Sightflow before placing an order.