Heating - Flow Marker (Pack of 5) - Safety Signs by Caledonia Signs

Clearly indicate the direction and presence of heating fluid flow within heating systems, such as central heating or hydronic (water-based) heating networks. These markers help technicians, maintenance personnel, and operators quickly identify the flow path, ensuring proper system operation and safe servicing.

The main reason to use heating flow markers is to prevent confusion between supply and return lines, which can lead to incorrect adjustments, inefficient heating, or damage to equipment like boilers, radiators, or pumps. Knowing the correct flow direction is essential for troubleshooting temperature issues, balancing the system, and performing maintenance safely.

Heating flow markers are typically applied on pipes, valves, pumps, heat exchangers, and radiators in residential, commercial, and industrial heating installations. They are especially valuable in complex systems with multiple heating loops or zones.

Using heating flow markers promotes efficient heating system performance, reduces the risk of errors during maintenance, and supports compliance with building codes and safety standards by providing clear, visual guidance on the flow direction within heating circuits.

Materials Explained

Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application.

Self-Adhesive Vinyl: Self-adhesive vinyl is easy to apply and it’s budget-friendly. Its adhesive backing allows for easy application to a variety of surfaces such as glass, metal, plastic, and painted walls, which simplifies installation and reduces setup time. Self-adhesive vinyl provides a clean, professional finish that suits many indoor environments including offices, retail, industrial sites, and vehicles. It is more affordable than many other material types and allows for custom shapes, colours, and graphics.