Apex Round Manual Range Products
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Frequently Asked Questions
What is the technical difference between the Apex Round manual valve and a thermostatic radiator valve?
The primary technical difference lies in the method of flow regulation. The Apex Round manual valve functions as a mechanical gate that remains in a fixed position set by the user allowing a constant flow of hot water regardless of the room temperature. In contrast a thermostatic valve uses an internal sensor to automatically open and close based on ambient heat. Manual valves are the best technical solution for bathrooms or rooms containing the main house thermostat to prevent system conflicts and boiler short cycling.
How do I determine if I need the Angled or Straight pattern for my pipework installation?
Selecting the correct valve geometry depends on the position of your heating pipes relative to the radiator inlets. You should choose the Apex Angled pattern if your pipes emerge from the floor or wall and need to turn 90 degrees to enter the side of the radiator. You should choose the Apex Straight pattern if your pipes run along the wall or floor and connect directly into the underside or side of the radiator in a straight line without any bends. Correct selection ensures optimal water flow and a neat installation.
Are the Apex Round manual valves compatible with standard UK 15mm copper piping?
Yes the Apex Round manual valves are engineered with a standard 15mm compression inlet which is the most common size for residential heating systems in the UK. The valve body includes a nut and olive designed to create a watertight compression seal directly onto 15mm copper or plastic barrier pipe. If your system uses microbore pipework such as 10mm or 8mm you will need to use a specific pipe reducer within the compression fitting to ensure a secure leak free connection.
Can I use these manual valves to balance my central heating system effectively?
Yes the Apex Round set includes a wheelhead valve for on off control and a matching lockshield valve for system balancing. To balance the system you must adjust the lockshield valve on the return side of the radiator using a specific tool. By restricting the flow through the lockshield you increase the hydraulic resistance which forces more hot water to reach radiators further away from the boiler. This technical process ensures even heat distribution across all rooms in the property.
Is the Chrome finish on the Apex Round range suitable for high humidity environments like bathrooms?
The Chrome finish on the Apex Round range is highly recommended for bathrooms and kitchens due to its durability and resistance to moisture. The plating process creates a non porous surface that protects the underlying brass body from oxidation and corrosion caused by steam and water splashes. Additionally the smooth reflective surface of the chrome makes it very easy to wipe down and keep clean preventing the buildup of limescale and soap scum common in wet areas.
What are the installation requirements for fitting these valves to a pressurized heating system?
Installation should ideally be carried out by a qualified engineer to ensure safety and system integrity. The process involves isolating the specific radiator draining the water content to reduce pressure and then fitting the new valves using PTFE tape or jointing compound on the threaded tails to prevent leaks. Once fitted the system must be repressurized to the boiler manufacturer specific operational range typically between 1.0 and 1.5 bar and bleeding must be performed to remove any trapped air pockets.
Why are manual valves preferred for heated towel rails over thermostatic options?
Manual valves like the Apex Round are often the preferred technical choice for heated towel rails because they allow for a constant heat output. Thermostatic valves can shut off prematurely if the sensor is covered by a damp warm towel leading to the rail cooling down and failing to dry the towel effectively. A manual valve ensures the rail remains hot continuously when the heating is on which is the primary functional requirement for a towel warmer in a bathroom setting.
How does the brass construction contribute to the longevity of the Apex Round valves?
The valve bodies are manufactured from solid brass which is a non ferrous metal highly resistant to rust and corrosion from the water inside the heating system. Unlike cheaper steel or zinc alloy alternatives brass can withstand high temperatures and pressure fluctuations without cracking or degrading over time. This material robustness is the key reason why the Apex Round range is backed by a comprehensive 10 year manufacturer guarantee.
Can the Apex Round manual valves be installed on designer radiators with bottom connections?
Yes the Apex Round manual valves are fully compatible with designer radiators featuring standard 1/2 inch BSP tappings. If your designer radiator has underneath connections centered at the bottom you would typically use the Straight valve pattern if pipes come from the floor or Angled valves if pipes come from the wall. The compact and round design of the valve head ensures it does not visually overpower the sleek aesthetic of modern vertical or horizontal designer radiators.
What maintenance is required to keep the valves operating smoothly for the 10 year guarantee period?
To maintain the mechanical function of the Apex Round valves you should rotate the wheelhead from fully open to fully closed a few times a year especially at the start of the heating season. This action prevents the internal washer and spindle from seizing due to scale buildup or inactivity. For the exterior finish simply wipe with a soft dry cloth and avoid using abrasive chemical cleaners which could strip the chrome or paint layer and invalidate the warranty.