The Drayton DTB 22mm Angled Automatic By-Pass Valve is a self-regulating flow control valve designed to maintain optimal circulation in heating systems fitted with thermostatic radiator valves (TRVs). Key features include:

• Automatic operation, opening as system resistance increases to ensure minimum flow

• Adjustable pressure range from 0.05 to 0.5 bar, allowing fine-tuning for system requirements

• Angled 22mm compression fittings, simplifying installation in tight spaces

• Reduces pump noise and protects boiler performance, especially when TRVs close down

• Set-and-forget design, requiring minimal maintenance once installed

• High-quality build, offering reliability and long-term durability in domestic and light commercial systems

A smart and efficient solution for installers aiming to preserve system balance and reduce wear on heating components.