The RLV-D lockshield valve is tailored for domestic heating systems, complying with BS2767-10 standards. It shares fittings and dimensions with the RAFR valve body, ensuring compatibility with RAS-C & RAS-D radiator thermostats for flexible installation. Regulation and isolation adjustments are made via a 6mm Allen key socket, usually shielded by a brass cap. RLV-D is also suitable for closed comfort cooling systems that are oxygen-free. Similarly, the RLV-S lockshield valve meets BS2767-10 requirements and matches the RAFN valve body dimensions, used with RA 2000 radiator thermostats. This design consistency provides installation ease. The lockshield adjusts with a 6mm Allen key socket, protected by a brass cap. RLV-S is applicable in oxygen-free closed comfort cooling systems as well. Both valves ensure a streamlined workflow and ease of use for installers.