SKU SWV-NV94 Category

Float valves NV94

Stainless steel float valves up to 300 °C, can be used variably for inlet or outlet.

Data sheet

Product information

The NV94 float valve from Mankenberg is a compact and robust stainless steel float valve for the automatic control of liquid levels in open or closed containers. It works completely automatically without auxiliary energy and converts level changes directly into a proportional opening or closing movement.
The high-quality stainless steel construction, various installation directions and the choice between soft-seated and metal-seated plugs make the NV94 ideal for demanding media, elevated temperatures and applications with high reliability and low maintenance requirements.

Special features

  • Full stainless steel construction for maximum corrosion resistance
  • Configurable for inlet or outlet control
  • Three installation directions possible: horizontal, vertical upwards or downwards
  • Soft-sealing (EPDM) up to 130 °C or metal-sealing up to 300 °C
  • Wide range of Kvs values for low to high throughput rates
  • Compact design for tank installation
  • Stainless steel float SC 3
  • Low maintenance and durable

Advantages

  • Automatic level control without external power supply
  • High media compatibility due to stainless steel 1.4404 / 316L
  • Reliable function even with changing container conditions
  • Flexible adaptation to installation position and flow direction
  • Reliable switching behavior with rising or falling liquid levels
  • Suitable for a wide range of industrial liquids

Variants

  • Type of function:
    Z = inlet valve (closes when the float rises)
    A = outlet valve (closes when the float falls)
  • Flow direction:
    w = horizontal flow
    o = upward flow
    u = downward flow
  • Seal versions:
    EPDM soft-sealing up to 130 °C
    Metal-sealing up to 300 °C
  • Nominal sizes:
    G 3/8″ to G 1 1/2″ (DN10-DN40)

Areas of application

  • Automatic level control in containers and tanks
  • Process water and cooling water systems
  • Food and beverage production
  • Chemical and petrochemical plants
  • Energy and industrial plants
  • Water treatment and supply systems
CharacteristicValue
Nominal pressurePN 16
Nominal sizeDN 10 –
DN 40
Connection sizeG 3/8″ to
G 1 1/2″
Working pressure0 to 8 bar
Temperature rangeEPDM up to 130 °C,
metallic sealing up to 300 °C
BodyStainless steel 1.4404 (316L)
ConeStainless steel, soft or metal sealing
FloatStainless steel ball float SC 3
Kvs values0.5 to 21 m³/h, depending on size and pressure range
Function typeInlet (Z) or outlet (A)

Float valves in tank construction – Reliable level control for industrial liquid processes

Float valves are essential components in tank construction and in the process industry, as they enable automatic, mechanically precise and permanently reliable control of liquid levels. They take over the automatic filling or emptying of containers and reservoirs and ensure that defined fill levels are maintained and overfilling or dry runs are safely avoided.
Whether in storage tanks, storage containers, water systems or in industrial processes – float valves ensure stable operation without additional energy supply.

Thanks to their robust design and the option of choosing different materials and float designs – for example plastic or stainless steel versions – our float valves can be ideally adapted to the specific requirements of your system. They are suitable for neutral and slightly aggressive media and, depending on the variant, can also be used at elevated temperatures and pressures.
They therefore meet the requirements of a wide range of industrial applications, for example in municipal water supply, the food industry or general plant engineering.

In addition to our standard designs, we also offer customized solutions, including special connections, alternative sealing materials or special float designs for increased operational safety. This gives you a product that combines functionality, durability and precision – ideal for use in water, energy and process systems as well as in customized tank concepts.

Armaturenfabrik Tank construction made of stable and stainless steel, level indicators Bypass level indicators Pressure vessels Oil, liquids, gases, float valves

FAQs

Which media is the NV94 suitable for?

For almost all non-abrasive liquids, including corrosive media, thanks to full stainless steel construction.

Yes, the NV94 supports horizontal as well as upward or downward installation directions.

It works automatically: The float actuates the valve cone directly via a lever and regulates the flow rate.

Up to 130 °C with EPDM gasket and up to 300 °C with metal gasket.

Yes, corrosive media can be used without any problems thanks to stainless steel 1.4404 / 316L.

Insulation – In combination with fittings and containers

Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

  • Custom-made insulating pads to fit your fitting
  • Heating jacket integration – reliable even under extreme conditions
  • Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
  • Special solutions for high temperatures – for power plants, the chemical and process industries
Armaturenfabrik Valve insulation High-temperature pipe insulation with IFS-Plast25 insulation pads and IFS-MW20 mineral wool for SKID systems, process plants

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