These straight pattern valves are available in 15mm, 22mm and 28mm sizes. The carrying capacity of this range of valves is very high with large but linear changes in water throughput for relatively small increases in differential pressure. This allows a 15mm valve to be used in situations where 22mm valves are normally required.
Easy to set, self acting solution
Reduces risk of noise in systems fitted with radiator thermostats
Improves system efficiency
Maintains minimum flow rates through boiler and pump