CLA-VAL 90-01 : Pressure Reducing Valve - Cla-Val

CLA-VAL 90-01 : Pressure Reducing Valve

Cla-Val Models 90GE-01 and NGE90-01 pressure reducing valves automatically reduce a higher inlet pressure to a steady lower downstream pressure regardless of changing flow rate and/or varying inlet pressure.

This valve is an accurate, pilot operated regulator capable of holding downstream pressure to a pre-determined limit.

Click here to view the animation of a 90-01 supplying a water district.

+Pressure gauges [ ]

+Pressure transmitters [ ]

+Stem position indicator [X101]

+Stem position transmitter [e-Lift-35]


+ Low headloss [Series 90-01/LHL]

+ Remote pressure set-point  [Series PCM90-01

+ Non return – [Series 91-01]

+ Solenoid shut-off – [Series 93-01]

+ Pressure sustaining – [Series 92-01]

+ Downstream Surge Control [Series 94-01]

+ Many more combinations - speak to a member of the CLA-VAL Team

What information is needed to size a Pressure Reducing Valve (PRV)

Maximum Flow, Upstream (inlet) Pressure, Downstream (Outlet) Pressure. If possible, minimum flow.

What does the “NGE” designation mean in the catalogue number (for example: Model NGE90-01 versus 90GE-01)

The ‘90GE-01’ is a full port valve and ‘NGE90-01’ is a reduced ported valve. The ‘NGE’ has a high resistance to cavitation and is the most common valve type. ‘GE’ valves are suited to applications with lower pressure differentials and high flows.

How many straight pipe diameters are required either side of the valve.

The guideline is 5 pipe diameters each side, but can be less depending on valve function.

Can I install 2 pressure reducing valves in series?

A minimum of 10 pipe diameters separation is recommended to minimise the risk of pressure instability. Furthermore, we recommend using Direct acting valves such as the CLA-VAL AQUA/PRV/FL.


Marketing Sheet

Technical Sheet

REVIT file - 90GE-01 - Flanged Connection

REVIT file - 90GE-01 -Screwed Connection

REVIT file - NGE90-01 - Flanged Connection