Underfloor Heating Manifolds by Material

Generally, there are two types: brass (including chrome-plated and natural brass) and stainless steel; brass manifolds are more commonly used.

Based on the level of smart functionality required for underfloor heating, underfloor heating manifolds can be categorized as follows: automatically regulated smart manifolds, manually regulated handwheel-type manifolds, and ball valve manifolds. Automatically Regulated Smart Manifolds: These manifolds feature electric actuators installed on each branch line. Thermostats are installed in each room and connected to the actuators. By using a control panel or mobile control device, users can automatically regulate room temperatures. Handwheel-Type Manifolds: These manifolds rely on a handwheel to adjust the flow rate of each branch line, thereby regulating the temperature in each room. Ball Valve Manifolds: Ball valve manifolds are not convenient for adjusting flow rates in each branch and are suitable for radiator systems but less suitable for underfloor heating.

Based on functionality and filtration, manifold distributors are classified into three types: Basic, Standard, and Functional. Basic Type: Consists of a distribution main pipe and a return main pipe. A ball valve is installed at each branch outlet of the distribution and return main pipes. Additionally, manual air vents are installed on the distribution and return main pipes. The Basic Type manifold distributor does not have flow regulation capabilities. Standard Type: The structure of the standard manifold is identical to that of the basic type, except that the ball valves on each main pipe are replaced with flow control valves. The manual air vents on the main pipes are replaced with automatic air vents. (Click to follow ☞ Top 10 Construction Technology WeChat Accounts) The standard manifold allows for precise flow regulation in each loop; in some high-end models, flow regulation can even be achieved through artificial intelligence. Functional Type: In addition to all the features of the standard manifold, the functional manifold includes temperature and pressure display, automatic flow regulation, automatic water mixing and heat exchange, heat metering, automatic temperature control for underfloor heating zones, and wireless and remote control capabilities. To prevent corrosion, manifolds are typically plated with nickel or made of high-temperature-resistant plastic. Regardless of the type of manifold (including fittings), the inner and outer surfaces must be smooth and free of defects such as cracks, sand holes, cold shuts, inclusions, or unevenness. The surface color should be uniform, the plating should be secure, and there must be no defects such as peeling plating.