Sight Flow Indicators
NAM-Series Flow Sight Glass Gauge
Threaded rotor indication with self-cleaning and high-pressure options
The NAM-Series is designed for fluid service and can be supplied in standard or high-pressure construction, with or without a rotor and self-cleaning feature.
- CE 2810Marking options available
Standard with rotor
High pressure with rotorService and indication
- Fluid service with female inlet and outlet connections
- Rotor indication with selectable colour and material
- Self-cleaning, rotor-free and high-pressure configurations available
Technical data
Materials and performance
- Body
- SS316L
- Tube housing
- Glass
- O-ring
- Viton or NBR
- Rotor guide and thread connection
- SS316
- Viscosity
- 1–150 mm²/s
- Indication range
- 0.4–4 L/min minimum; 8–100 L/min maximum for water
Operating limits and connections
- SS316L body pressure
- 16 bar at 20°C
- High-pressure version
- 80 bar at 20°C
- SS316L body temperature
- -5°C to 150°C
- Connection sizes
- 1/4, 3/8, 1/2, 3/4, 1, 1 1/4 and 1 1/2 in female
- Connection threads
- NPT or PF (BSPP)
- High-pressure sizes
- 1/2, 3/4 and 1 in female NPT or PF (BSPP)
Dimensions and flow range
Dimensions in millimetres. Flow ranges shown are for water.
| Size | 1/4 in | 3/8 in | 1/2 in | 3/4 in | 1 in | 1 1/4 in | 1 1/2 in |
|---|---|---|---|---|---|---|---|
| L (mm) | 71 | 71 | 86 | 94 | 104 | 120 | 130 |
| L — high pressure | - | - | 93 | 93 | 93 | - | - |
| Spanner size AF | 36 | 36 | 46 | 46 | 46 | 65 | 65 |
| Water flow range (L/min) | 0.4–4 | 0.6–8 | 1–12 | 1–25 | 1.6–40 | 8–80 | 8–100 |
Rotor options
Ordering information
Choose your options to build an enquiry reference.
Specifications are general selection guidance. Confirm materials, connection standards, operating temperature and pressure with Sightflow before placing an order.