The Heatrae Sadia pressure relief valve helps to control pressure build up within a boiler heating system. It is set to open proportionally to increasing pressure to prevent catastrophic boiler malfunction.

• Ideal for Heatrae Sadia Megaflo Eco Unvented Cylinder
• Ideal for Heatrae Sadia Megaflo Eco SolaReady Unvented Solar Cylinder
• Ideal for Heatrae Sadia Megaflo HE Unvented MK 3 Control
• Ideal for Heatrae Sadia Megaflo Eco Systemfit Unvented Cylinder
• Ideal for Heatrae Sadia Megaflo Eco SystemReady Unvented Cylinder
• Material is Brass and Plastic