Pressure Reducing Valves

Pressure reducing valves (also known as pressure regulating valves) are installed in residential water systems to reduce and stabilise inlet pressures from mains water supplies or boosted water systems. These inlet pressures are generally too high and varied for domestic appliances to function correctly, potentially causing costly damage to the appliances and surroundings.

  • We are Caleffi

    The Caleffi range of pressure reducing valves (PRV) are designed to cover domestic, semi-commercial and commercial applications

  • Press-Fit Solutions

    Save time during installation using our Press-fit PRV range. Check it out now!

  • Prevent Excessive Pressure

    Safeguard your system using Caleffi PRVs. Equalise the hot and cold water supplies, or both, and prevent excessive pressure at outlets such as taps and showers

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  1. APARTMENT CONTROL ASSEMBLY PLUS ™

    The Altecnic 133-504 apartment control assembly PLUS™ combines several functions into two monobloc bodies with a carrier for an optional water meter for use in multi-occupancy buildings.

    Efficient monitoring and control of water supply to residential and commercial developments.

    • Isolation and Pressure Control
    • Water Meter Carrier and Meter
    • Backflow Prevention and Isolation

    Options available with blanked carrier or hot/cold water meter cartridges complete with wireless M-BUS connectivity.

  2. PRESCAL - SERIES 533 HIGH TEMPERATURE PRESSURE REDUCING VALVE WITH COMPRESSION ENDS

    The series 533 high performance range of pressure reducing valves is designed for domestic and semi-commercial applications.

  3. PRESCAL - SERIES 533 HIGH PERFORMANCE PRESSURE REDUCING VALVES

    The series 533 high performance range of pressure reducing valves is designed for domestic and semi-commercial applications.

  4. SERIES 533 COLD PRESSURE REDUCING VALVE

    Pressure reducing valves are installed in residential water systems to reduce and stabilise inlet pressures from mains water supplies or boosted water systems, which generally are too high and variable for domestic appliances to function correctly.
    The 533 Cold series is specially designed for cold services in houses or apartments to reduce or equalise the cold water supply and prevent excessive pressure at outlets such as taps and showers.

  5. PRESCAL - SERIES 533LB PRESSURE REDUCING VALVE - 4MS POSITIVE LIST COMPLIANT

    The series 533LB range of pressure reducing valves is designed for
    domestic and semi-commercial applications.pressure-reducing

  6. SERIES 533H INCLINED MICRO PRESSURE REDUCING VALVE

    The series 533H range of pressure reducing valves is designed for domestic and semi-commercial applications.

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About our Pressure Reducing Valves

Meeting the latest European standard and UK water supply requirements, our range of PRVs provide control under both dynamic and static flow conditions, depending on model.

Pressure Reducing Valves FAQs

What is a PRV?

Pressure reducing valves regulate the incoming water pressure from a mains supply or a boosted supply within a building. This limits high-pressure water that can seriously damage components in heating and potable systems which can lead to damage or even burst pipes and seals. Pressure reducing valves (PRVs) are designed to reduce water pressure and maintain it to a set level preventing damage to those components installed downstream of the PRV.

How does a PRV work?

Pressure reducing valves commonly used in pneumatic systems are generally spring-loaded. Sometimes referred to as a pressure regulator, the valve uses spring pressure against a diaphragm to open the valve. The outlet pressure of the valve forces the diaphragm upward which consequently shuts the valve. In order for the valve to open again, the outlet pressure must drop below the point set on the valve. This allows the pressure of the spring to overcome the outlet pressure which, in turn, forces the stem downward. Each install can be set to specific site conditions by turning the adjusting screw.

Why use a water regulating valve?

Aside from ensuring a safe and controlled flow of water from your outlets, pressure regulating valves present many other benefits.

Save water

Utilising a PRV set to the correct pressure levels is an easy way to reduce water consumption in your home. Reducing system pressure down to 10-20 PSI could save the average home thousands of gallons of water per year.

Save money

If your property is on a water meter, a reduction in water usage will mean a reduction in your bills. However, there are other ways PRVs will save you money over time. Regulated water pressure relieves strain on all components downstream, preventing damage and increased wear. This should, in turn, increase the lifespan of fixtures and appliances.

Comfortable water pressure

Turning on the kitchen tap and subsequently getting soaked, or stepping into a shower that feels more like a firehose - neither one is a pleasant experience. Using a PRV will ensure a consistent, reliable flow of water through your outlets.

Reduce the risk of leaks

Excess pressure running through pipes can cause hairline cracks to appear, which can eventually result in a pipe blowout. Leaks in your home can cause devastating damage to your home, often requiring costly reconstruction work. By fitting a PRV, this risk is greatly reduced and could save you a lot of money.

You can find more technical answers to PRV questions over on our FAQs page.

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If you still require further assistance finding the product or service you need, why not get in touch with our dedicated team of experts? Alternatively, you can find your nearest stockist of Altecnic products.

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