Abstract: A magnetic filter is disclosed suitable for use in large heating and/or cooling systems, for example heating systems using pipework between 2 inch bore and 4 inch bore. The magnetic filter includes a separation chamber in the form of a pipe, and externally-mounted magnetic 5 assemblies which are movable from a position close to the pipe to a position spaced from the pipe. The magnetic assemblies are pivotally mounted to the pipe via a framework.

Abstract: A magnetic filter is disclosed suitable for use in large heating and/or cooling systems, for example heating systems using pipework between 2 inch bore and 4 inch bore. The magnetic filter includes a separation chamber in the form of a pipe, and externally-mounted magnetic 5 assemblies which are movable from a position close to the pipe to a position spaced from the pipe. The magnetic assemblies are pivotally mounted to the pipe via a framework.

Abstract: A magnetic rod guide for a filter is provided that includes a base for attachment to part of a filter, a through aperture through which a magnetic rod can move, and resilient engagement device. The resilient engagement device includes one or more resilient latches for holding the magnetic rod in one or more fixed positions relative to the guide. Each resilient latch is adapted to allow movement of the magnetic rod through the through aperture in either direction, for insertion into the flier or withdrawal from the filter into one of the fixed positions.

Abstract: A magnetic debris level measuring device for a magnetic filter is disclosed. The magnetic debris level measuring device includes a magnetometer and a temperature sensor. The temperature measured by the temperature sensor is used to calculate a corrected magnetometer reading, which in turn can be used to determine the amount of captured magnetic debris held within the filter. The device has a stored threshold for the corrected magnetometer reading, and when the corrected magnetometer reading crosses the stored threshold a notification is issued that the filter is full. If it is detected that debris continues to be captured after the ‘full’ notification has been issued, the stored threshold will be updated accordingly.

Abstract: A magnetic debris level measuring device for a magnetic filter is disclosed. The magnetic debris level measuring device includes a magnetometer and a temperature sensor. The temperature measured by the temperature sensor is used to calculate a corrected magnetometer reading, which in turn can be used to determine the amount of captured magnetic debris held within the filter. The device has a stored threshold for the corrected magnetometer reading, and when the corrected magnetometer reading crosses the stored threshold a notification is issued that the filter is full. If it is detected that debris continues to be captured after the ‘full’ notification has been issued, the stored threshold will be updated accordingly.

Abstract: A magnetic filter is disclosed suitable for use in large heating and/or cooling systems, for example heating systems using pipework between 2 inch bore and 4 inch bore. The magnetic filter includes a separation chamber in the form of a pipe, and externally-mounted magnetic 5 assemblies which are movable from a position close to the pipe to a position spaced from the pipe. The magnetic assemblies are pivotally mounted to the pipe via a framework.

Abstract: A magnetic filter is disclosed suitable for use in large heating and/or cooling systems, for example heating systems using pipework between 2 inch bore and 4 inch bore. The magnetic filter includes a separation chamber in the form of a pipe, and externally-mounted magnetic 5 assemblies which are movable from a position close to the pipe to a position spaced from the pipe. The magnetic assemblies are pivotally mounted to the pipe via a framework.

Abstract: A magnetic filter is disclosed suitable for use in large heating and/or cooling systems, for example heating systems using pipework between 2 inch bore and 4 inch bore. The magnetic filter includes a separation chamber in the form of a pipe, and externally-mounted magnetic assemblies which are movable from a position close to the pipe to a position spaced from the pipe. The magnetic assemblies are pivotally mounted to the pipe via a framework.

Abstract: A magnetic filter is disclosed suitable for use in large heating and/or cooling systems, for example heating systems using pipework between 2 inch bore and 4 inch bore. The magnetic filter includes a separation chamber in the form of a pipe, and externally-mounted magnetic 5 assemblies which are movable from a position close to the pipe to a position spaced from the pipe. The magnetic assemblies are pivotally mounted to the pipe via a framework.

Abstract: A testing device for testing the level of a selected chemical in central heating system water in a central heating system circuit comprises: a sample chamber for holding a sample of central heating system water, the sample chamber being connected to the central heating system circuit; means for controlling filling of the sample chamber with central heating system water from the central heating system circuit, and emptying of the sample chamber; at least one valve for isolating the sample of central heating system water from the heating circuit during testing; and optical testing apparatus including a light source and a detector, for measuring an optical property of the sample of central heating system water isolated within the sample chamber and thereby making a determination as to whether or not the level of the selected chemical in the water is greater than a predetermined threshold level.

Abstract: An in-line fitment for connection of a filter to a pipe includes first and second fluid-carrying portions and a non-fluid-carrying spacer. Each fluid-carrying portion includes a socket for receiving an open end of a pipe and a connector for connection of the filter. A screw compression fitting is provided on each of the sockets of the first and second fluid-carrying portions for forming a sealed connection with the open ends of the pipe. The socket of the first fluid-carrying portion has a pipe receiving depth greater than that of the socket of the second fluid-carrying portion for enabling movement of the fitment parallel to the pipe when engaged with one of the open ends of the pipe. The sockets of the first and second fluid-carrying portions are positioned on a common axis and facing away from each other when the fluid-carrying portions are linked by the spacer.

Abstract: A magnetite level monitoring device for a magnetic filter in a central heating system, the magnetic filter including a separation chamber, an inlet to the chamber and an outlet from the chamber, and a magnetic element disposed within the chamber for attracting magnetic particles and removing the magnetic particles from the system water as it flows through the chamber, and the monitoring device including: a housing for placing adjacent to the outside of the separation chamber; a magnetometer mounted to the housing; a magnetic field guide mounted to the housing, the magnetic field guide being disposed between the magnetometer and the outside of the separation chamber, when the housing is mounted to the separation chamber; and output means adapted to issue a notification when the output from the magnetometer exceeds a predetermined threshold.

Abstract: A magnetic rod guide for a filter comprises a base for attachment to part of a filter, a through aperture through which a magnetic rod can move, and resilient engagement means including at least one resilient latch for holding the magnetic rod in one or more fixed positions relative to the guide, the or each resilient latch further being adapted to allow movement of a magnetic rod through the through aperture in either direction, for insertion into the filter or withdrawal from the filter into one of the fixed positions.

Abstract: A magnetic filter for a central heating system is disclosed, the filter including a separation chamber, a magnet for capturing magnetic particles within the separation chamber, an inlet for fluidly connecting to a central heating system circuit, an outlet for fluidly connecting to a central heating system circuit, and a single valve operable to select between at least two positions, the valve in a first position fluidly connecting the inlet to the separation chamber and fluidly connecting the outlet to the separation chamber and the valve in a second position isolating both the inlet and the outlet from the separation chamber.

Abstract: A magnetite level monitoring device for a magnetic filter in a central heating system, the magnetic filter including a separation chamber, an inlet to the chamber and an outlet from the chamber, and a magnetic element disposed within the chamber for attracting magnetic particles and removing the magnetic particles from the system water as it flows through the chamber, and the monitoring device including: a housing for placing adjacent to the outside of the separation chamber; a magnetometer mounted to the housing; a magnetic field guide mounted to the housing, the magnetic field guide being disposed between the magnetometer and the outside of the separation chamber, when the housing is mounted to the separation chamber; and output means adapted to issue a notification when the output from the magnetometer exceeds a predetermined threshold.

Abstract: A testing device (10) for testing the level of a selected chemical in central heating system water in a central heating system circuit comprises: a sample chamber (14) for holding a sample of central heating system water to be tested, the sample chamber (14) being connectable (12) to the central heating system circuit to allow fluid to pass between the central heating system circuit and the sample chamber (14); means (16) for controlling filling of the sample chamber (14) with central heating system water from the central heating system circuit, and emptying of the sample chamber (14); at least one valve (18) for isolating the sample of central heating system water from the heating circuit during testing; and optical testing apparatus including a light source (20) and a detector (22), for measuring an optical property of the sample of central heating system water isolated within the sample chamber (14) and thereby making a determination as to whether or not the level of the selected chemical in the water is g