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Reverse Rinsing Filtration

Efficient Water Filtration for Domestic and Commercial Properties

F76S Honeywell Reverse Rinsing Filter
F78TS Honeywell RRF

Reverse rinsing filters are the ultimate solution for maintaining clean water and protecting commercial water systems. Designed for the building services sector, these high-performance filters ensure uninterrupted water flow, minimise maintenance, and extend the lifespan of critical infrastructure. Discover how reverse rinsing technology can enhance your water system's efficiency and reliability.

What Is a Reverse Rinsing Filter?

A reverse rinsing filter is a high-efficiency water filtration device designed to remove debris such as rust particles, sand, and other contaminants from water systems. Unlike traditional filters, reverse rinsing filters incorporate a unique self-cleaning mechanism that uses filtered water to flush out accumulated particles, ensuring continuous filtration without the need for frequent manual intervention.

Commonly used in commercial and industrial water systems, these filters are essential for maintaining the performance and longevity of building services equipment.

How Does a Reverse Rinsing Filter Work?

  1. Filtration Mode: Water flows through a fine mesh filter from outside to inside, trapping debris and preventing it from entering the system.

  2. Reverse Rinsing Mode: When cleaning is required, filtered water is redirected through the filter in reverse, flushing out contaminants. The process is quick, efficient, and uses minimal water.

The system can be manually activated or automated using optional differential pressure switches and actuators for seamless operation.

Applications of Reverse Rinsing Filters

  1. Central water supply systems in commercial buildings.

  2. Industrial processes requiring high water quality.

  3. Protection of heat exchangers, cooling systems, and boilers.

  4. Retrofit projects to enhance existing water infrastructure.

  5. Coarse filtration prior to finer particulate filters 

Why Choose Reverse Rinsing Filters for Building Services?

For domestic, commercial and industrial water systems, maintaining water quality is critical to operational efficiency. Reverse rinsing filters not only ensure a continuous supply of clean water but also protect expensive infrastructure from the damaging effects of contaminants. Their ability to clean themselves with minimal water usage makes them an environmentally friendly and cost-effective solution for modern building services.

Benefits of Implementing a Reverse Rinsing Filter

  • Uninterrupted Water Supply
    Reverse rinsing filters ensure a continuous flow of clean water, even during the cleaning process, making them ideal for large-scale applications where downtime is not an option.

  • Enhanced System Protection
    By removing contaminants like rust and sand, these filters protect downstream cold water storage tanks and equipment, such as boilers, heat exchangers, and pumps, from damage and blockages.

  • Cost Savings

    • Energy Efficiency: Cleaner water reduces scale build-up, improving energy efficiency in heating and cooling systems.

    • Reduced Maintenance: The self-cleaning mechanism minimises manual servicing and replacement costs.

  • Durability and Reliability
    With robust construction materials like brass, stainless steel, and polyamide coatings, reverse rinsing filters are built to withstand high pressures and temperatures, ensuring long-lasting performance.

  • Compliance and Standards
    These filters meet stringent potable water standards (e.g., DIN/DVGW/WRAS certification), making them suitable for building services and industrial applications.

F76S Reverse Rinsing Fine Filter

  • Line Sizes: Available in sizes ranging from ½" to 2" BSP.

  • Flow Rates and Associated Pressure Drops:

    • Flow rates vary depending on the specific model size.

    • Pressure drop is influenced by flow rate and filter mesh size.

  • Optional Accessories:

    • Automatic Reverse Rinsing Actuator: Compatible with the Z11S actuator for automated cleaning cycles.

    • Differential Pressure Switch: Can be equipped with the DDS76 switch to initiate reverse rinsing based on pressure differentials.

  • Filtration Mesh Micron Sizes: Options for 20 µm, 50 µm, 100 µm, 200 µm, 300 µm, and 500 µm, depending on the model.

F78TS Reverse Rinsing Fine Filter

  • Line Sizes: Available in DN65, DN80, and DN100.

  • Flow Rates and Associated Pressure Drops:

  • Flow rates and pressure drops are specific to each model size.

  • Optional Accessories:

    • Automatic Reverse Rinsing Actuator: Compatible with the Z11AS actuator for fully automated reverse rinsing.

    • Differential Pressure Switch: Can be retrofitted with the DDS76 switch for demand-based cleaning.

  • Filtration Mesh Micron Sizes: Standard mesh size is 100 µm, with options for 20 µm, 50 µm and 200 µm.

Install Example upto DN50

Install Example DN65 to DN100

F76S Installation guide
F78TS Installation guide
F76S - 1/2"

  • Flow Rate @ 0.5 bar Δp: 3.8 m³/h

  • Minimum/ Maximum Operating Pressure:  1.5/ 25 bar

  • Maximum Operating Temperature: 70 °C

  • WRAS Approval: Yes

  • Filter bowl material: Red-bronze

  • Weight: Approx. 2.9kg

  • Filter mesh options (µm): 50 & 100

F76 1/2AAM
F76S - 3/4"

  • Flow Rate @ 0.5 bar Δp: 5.5 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/25 bar

  • Maximum Operating Temperature: 70 °C

  • WRAS Approval: Yes

  • Filter Bowl Material: Red-bronze

  • Weight: Approx. 2.9 kg

  • Filter Mesh Options (µm): 50 & 100

F76 3/4AAM
F76S - 1"

  • Flow Rate @ 0.5 bar Δp: 7.5 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/25 bar

  • Maximum Operating Temperature: 70 °C

  • WRAS Approval: Yes

  • Filter Bowl Material: Red-bronze

  • Weight: Approx. 3.1 kg

  • Filter Mesh Options (µm): 50 & 100

F76 1AAM
F76S - 1 1/4"

  • Flow Rate @ 0.5 bar Δp: 8.9 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/25 bar

  • Maximum Operating Temperature: 70 °C

  • WRAS Approval: Yes

  • Filter Bowl Material: Red-bronze

  • Weight: Approx. 3.3 kg

  • Filter Mesh Options (µm): 50 & 100

F76 11/4AAM
F76S - 1 1/2"

  • Flow Rate @ 0.5 bar Δp: 15.6 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/25 bar

  • Maximum Operating Temperature: 70 °C

  • WRAS Approval: Yes

  • Filter Bowl Material: Red-bronze

  • Weight: Approx. 4.0 kg

  • Filter Mesh Options (µm): 50 & 100

F76 11/2AAM
F76S - 2"

  • Flow Rate @ 0.5 bar Δp: 16.5 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/25 bar

  • Maximum Operating Temperature: 70 °C

  • WRAS Approval: Yes

  • Filter Bowl Material: Red-bronze

  • Weight: Approx. 4.8 kg

  • Filter Mesh Options (µm): 50 & 100

F76 2AAM
F78TS - DN65

  • Flow Rate @ 0.2 bar Δp: 30 m³/h

  • Flow Rate @ 0.5 bar Δp: 48 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/16 bar

  • Maximum Operating Temperature: 40 °C

  • WRAS Approval: Yes

  • Filter Mesh Options (µm): 20, 50, 100, 200

  • Weight: Approx. 25 kg

F78TS 65
F78TS - DN80

  • Flow Rate @ 0.2 bar Δp: 48 m³/h

  • Flow Rate @ 0.5 bar Δp: 78 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/16 bar

  • Maximum Operating Temperature: 40 °C

  • WRAS Approval: Yes

  • Filter Mesh Options (µm): 20, 50, 100, 200

  • Weight: Approx. 35 kg

F78TS 80
F78TS - DN100

  • Flow Rate @ 0.2 bar Δp: 60 m³/h

  • Flow Rate @ 0.5 bar Δp: 100 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/16 bar

  • Maximum Operating Temperature: 40 °C

  • WRAS Approval: Yes

  • Filter Mesh Options (µm): 20, 50, 100, 200

  • Weight: Approx. 43 kg

F78TS 125
F78TS - DN125

  • Flow Rate @ 0.2 bar Δp: 60 m³/h

  • Flow Rate @ 0.5 bar Δp: 100 m³/h

  • Minimum/ Maximum Operating Pressure: 1.5/16 bar

  • Maximum Operating Temperature: 40 °C

  • WRAS Approval: Yes

  • Filter Mesh Options (µm): 20, 50, 100, 200

  • Weight: Approx. 65 kg

F78TS 100

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