The water pressure reducer is an essential element of any professional water supply installation, whose proper installation determines the effectiveness and safety of the entire system. In our many years of experience as a market leader in installation, we observe that installers most often ask about the correct installation position of this device in relation to the water meter and other elements of the installation.
The pressure reducer can and should be installed after the water meter - this is a standard and recommended industry practice that we apply in projects carried out by our installation partners. This method of installation provides optimal protection for the entire internal installation against excessive pressure from the water supply network.
We offer a full range of water pressure reducers from renowned manufacturers in the Onninen assortment, which work perfectly when installed after the water meter. Our experience shows that the proper selection and installation of the reducer translates into long-lasting, trouble-free operation of the installation.
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Why install a pressure reducer after the water meter?
The position of the pressure reducer after the water meter results from the logical sequence of protections in the water supply installation. From our experience in the installation industry, we know that the correct sequence of installation elements is crucial for the functionality of the entire system.
Optimal sequence of elements on the main connection
In professional installations, we use the following installation sequence:
- Main valve - the first element cutting off the water supply
- Water meter - measuring water consumption for billing purposes
- Water filter - protection against mechanical impurities
- Pressure reducer - stabilizing pressure in the internal installation
- Check valve - protection against backflow
Benefits of installation after the water meter
Installing the reducer after the water meter brings specific operational benefits:
- Protection of the internal installation - the reducer stabilizes pressure for all receivers
- Precise measurement of consumption - the water meter measures actual amounts before pressure reduction
- Easy service access - all elements are accessible in the technical zone
- Compliance with regulations - adherence to industry standards PN EN 1567
When to install a filter before the pressure reducer
In our installation practice, we always recommend installing a filter before the pressure reducer. This solution protects the reduction mechanism from damage caused by mechanical impurities from the water supply network.
| Advantages of a filter before the reducer | Consequences of not having a filter |
|---|---|
| Protection of the membrane from impurities | Faster wear of internal components |
| Stable operation of the reducer | Unstable outlet pressure |
| Longer device lifespan | More frequent failures and replacements |
| Ease of maintenance | Need to disassemble the entire reducer |
In the Onninen assortment, you will also find combined solutions - reducers with a built-in filter that combine both functions in one device. This practical solution is particularly appreciated by installers in limited installation space.
How to properly install a reducer after the water meter
Preparation for installation
Before installing the pressure reducer, the installation should be flushed to remove impurities from the pipes. From our experience, this step is often overlooked, leading to problems with the operation of the reducer.
Key installation rules
- Maintain flow direction - according to the arrow on the body
- Calming section - at least 5 nominal diameters after the reducer
- Installation position - according to the manufacturer's recommendations (vertically, horizontally, or universally)
- Access to adjustment - possibility to operate the adjustment screw
Setting the working pressure
The correct pressure setting on the reducer is 4 bars for typical domestic installations. In the Onninen offer, there are reducers with a factory-set pressure of 4 bars, which facilitates installation and the first 
adjustment.
Adjustment is done by:
- Turning the adjustment screw to the right - increasing pressure
- Turning the adjustment screw to the left - decreasing pressure
- Checking on the manometer on the outlet side
Selecting the appropriate pressure reducer
In our offer, you will find a wide range of pressure reducers tailored to various applications and installation requirements. Our specialists advise installers on choosing the optimal solution.
Criteria for selecting a reducer
- Connection diameter - 1/2", 3/4", 1", 1 1/4" and larger
- Adjustment range - typically 1.5-6 bars
- Maximum inlet pressure - up to 25 bars in standard models
- Material - brass resistant to dezincification
- Additional features - manometer, filter, adjustment indicator
We recommend the 315 type reducers from SYR, which are characterized by high reliability and availability of service parts. Their cartridge construction allows for quick maintenance without changing the pressure settings.
Frequently asked questions
Can a pressure reducer be installed before the water meter?
We do not recommend installing a reducer before the water meter, as the water meter should measure actual water consumption before pressure reduction. The standard sequence is: main valve, water meter, filter, pressure reducer.
What pressure should be set on the reducer in a domestic installation?
The optimal pressure is 4 bars for most domestic installations. The safe range is 0.5-6 bars according to regulations. The reducers from our offer have a factory setting of 4 bars.
Can a reducer work without a filter?
The filter is crucial for the long-term operation of the reducer. It protects the membrane from impurities from the water supply network. We also offer combined models with a built-in filter for installations with limited space.
How often should the reducer settings be checked?
Checking every 6 months is sufficient for most installations. We check the pressure on the manometer and the cleanliness of the filter. High-quality reducers from our offer maintain stable parameters for years.
What savings does a properly set reducer provide?
A reduction in water consumption of 20-30% is typical savings when reducing pressure from 6 to 3 bars. For a family of four, this can mean savings of about 300 zlotys per year on water bills.
When to use zone installation of the reducer?
Zone installation is used when there is limited access to the main connection or when we need to protect specific devices like boilers. The reducer is then installed directly on the supply line to the device.
Can a reducer cause pressure drops?
A clogged filter is the main cause of pressure drops when opening taps. Regular cleaning of the filter and checking the settings eliminate this problem. We offer reducers with easy access to the filter.
Investment in the safety of the installation
Proper installation of the pressure reducer after the water meter is an investment in the long-term safety of the entire water supply installation. From our many years of experience in the installation industry, we know that customers appreciate the savings and peace of mind that a professionally executed installation with a properly selected reducer provides.
In the Onninen assortment, you will find all the necessary elements for comprehensive water supply connection equipment - from high-quality water meters, through effective filters, to reliable water pressure reducers from renowned manufacturers. Our branches throughout Poland ensure quick availability of products and professional technical advice.
Professional installation of the pressure reducer after the water meter guarantees stable operation of the installation, lower water bills, and protection against costly failures. This solution combines practical benefits with long-term savings - exactly what our customers expect from modern water supply installations.