NJV-015G.040 Flow Indicator
The NJV-015G.040 flow indicator is part of the Senseca / Honsberg NJ/NJV range of mechanical flow indicators for liquid media. It uses a spring-supported piston and magnetic coupling to move the indicator ring. As a result, the flow reading can be displayed mechanically.
It is designed for viscosity-stabilised oil applications. The NJV family is intended for oils in the 30–200 mm²/s viscosity range; confirm the medium and operating conditions before ordering. The brass body has a G1/2 female process connection (DN15) and a listed display range of 10–40 L/min.
Key features
- Mechanical flow indication for oil
- Brass construction with female threaded process connection
- G1/2 connection, nominal size DN15
- Listed display range: 10–40 L/min
- Spring-supported piston with magnetic coupling
- Optional switching contacts, depending on selected configuration
Technical specifications
- Model: NJV-015G.040
- Manufacturer family: Senseca / Honsberg NJV
- Medium: Viscosity-stabilised oil
- Body material: Brass
- Nominal size: DN15
- Process connection: G1/2 female thread
- Display range: 10–40 L/min
- Pressure resistance: PN 100 (refer to manufacturer conditions)
- Medium temperature: −20°C to +100°C
- Ambient temperature: −20°C to +70°C
Applications
This mechanical flow indicator can be considered for industrial liquid circuits, machinery, circulation lines and process systems that require a local flow reading. However, final suitability depends on the medium, pressure, temperature, flow rate and installation conditions.
Installation and selection
The standard installation is vertical, with flow from bottom to top. In addition, the manufacturer recommends a straight calming section of 5 × DN at both the inlet and outlet. If the liquid contains contamination, install a suitable filter.
Before ordering, confirm the liquid, flow direction, required display range and whether an electrical switching contact is needed. For NJV oil models, also provide the viscosity and operating temperature.
Need a quote? Contact Spectanet for availability, pricing and technical selection assistance for the NJV-015G.040 flow indicator.


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