ABBV1 auto-bypass valve

Name: ABBV1 auto-bypass valve
Brand: Household Heating
SKU: ABBV1
Price: 15.49 GBP
Availability: InStock

£15.49

Tower ABBV1 Automatic Bypass Valve The Tower ABBV1 is designed for use in heating systems where a boiler bypass is necessary. It is particularly effective in systems equipped with thermostatic radiator valves (TRVs) and enables pump overrun functionality after zone valves close.

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SKU: ABBV1 Category: Central Heating Products

Description

Tower Automatic Bypass Valve – ABBV1

The Tower ABBV1 Automatic Bypass Valve is designed for use in central heating systems where a boiler bypass is required, particularly in installations fitted with thermostatic radiator valves (TRVs). It plays a critical role in maintaining correct system operation by ensuring constant water flow and supporting pump overrun functionality once zone valves have closed.

As TRVs begin to close in response to rising room temperatures, system resistance increases. The ABBV1 automatically responds to these changes by opening to its preset differential pressure, allowing additional flow to bypass between the flow and return. This action helps maintain a stable system pressure, ensuring that the boiler continues to receive the minimum flow rate required to operate safely and efficiently.

By regulating differential pressure within an adjustable range of 0.1 to 0.6 bar, the ABBV1 reduces unwanted system noise often caused by TRVs or motorised valves closing. This controlled pressure relief also helps to minimise wear on the pump impeller and protect the boiler heat exchanger, contributing to improved system longevity and quieter operation.

The valve is capable of handling a high flow rate of up to 50 litres per minute, making it suitable for a wide range of domestic heating systems. Supplied with 22mm compression fittings, it integrates easily into existing pipework. Installation should be carried out in a bypass loop between the flow and return after the pump, ensuring that the flow direction follows the arrow marked on the valve body.

System pressure is set by rotating the adjustment head until the desired setting number is visible. Once the correct differential pressure has been selected, the setting can be securely locked in place using the adjuster screw, preventing accidental changes and ensuring consistent performance. Final settings should always be selected in line with boiler manufacturer guidance and system design pressure/flow requirements.

The Tower ABBV1 Automatic Bypass Valve provides reliable pressure control, quieter system operation, and essential protection for pumps and boilers, making it an important component in modern heating systems using TRVs and zone valves.

Full technical specifications, installation guidance, and pressure setting information can be found in the specification tab above.

Key features

High Flow Rate: Handles up to 50 litres per minute.
Pressure Range: Adjustable differential pressure from 0.1 to 0.6 bar.
22mm Compression Fittings: Standard fittings for seamless integration.
Minimises Noise: Reduces noise from TRVs and zone valve operation.

This ABBV1 auto-bypass valve is a practical choice for domestic heating systems where dependable operation, clear control and straightforward installation are important.

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Tower Flue Components ABBV1 Auto Bypass Valve

Regulates heating system differential pressure
High capacity flow, up to 50 litres per minute
Differential pressure range 0.1 to 0.6 bar
22 mm compression fitting
Reduces system noise

Specification

Tower ABBV1 Automatic Bypass Valve

The Tower ABBV1 is designed for use in heating systems where a boiler bypass is necessary. It is particularly effective in systems equipped with thermostatic radiator valves (TRVs) and enables pump overrun functionality after zone valves close. By maintaining a consistent system pressure and ensuring constant flow, the ABBV1 enhances the efficiency and longevity of your heating system.

As TRVs gradually close when room temperatures rise, the ABBV1 compensates by adjusting to the required set point, allowing increased flow to maintain a pre-set system differential pressure. This helps to minimise noise caused by TRVs or zone valves closing, reduce wear on the pump impeller, and protect the boiler’s heat exchanger by ensuring a consistent minimum flow rate.

For installation, the ABBV1 should be placed in a loop between the flow and return after the pump, with the flow direction matching the arrow on the valve body. Set the desired pressure by rotating the adjustment head until the preferred setting number is visible, then lock it in place using the screw on the adjuster. Refer to boiler manufacturer recommendations and the specified pressure/flow rates for optimal performance.

Key Features:

High Flow Rate: Handles up to 50 litres per minute.
Pressure Range: Adjustable differential pressure from 0.1 to 0.6 bar.
22mm Compression Fittings: Standard fittings for seamless integration.
Minimises Noise: Reduces noise from TRVs and zone valve operation.
Consistent Pressure: Maintains system pressure during operation.
Reliable Flow: Ensures constant flow through the boiler.
Secure Adjustment: Lockable set pressure for precision and reliability.

Technical Specifications:

Flow Capacity: Up to 50 litres per minute.
Pressure Range: 0.1–0.6 bar.
Fittings: 22mm compression.
Application: Suitable for systems with TRVs or requiring pump overrun functionality.

The Tower ABBV1 Automatic Bypass Valve is an essential component for maintaining system efficiency, reducing wear and tear on components, and ensuring the smooth operation of modern heating systems. Its robust design and easy adjustability make it a top choice for both professional installers and homeowners.

Tower Flue Components ABBV1 Auto Bypass Valve