ESI ESABV22 Automatic Bypass Valve 22mm

The ESI ESABV22 angled automatic bypass valve maintains the desired minimum flow rate through the boiler and limits circulation pressure when water paths may be closed by TRVs or zone valves. It reduces system noise, eliminates pump impeller wear from high flow resistance, enhances boiler heat exchanger life and saves energy by allowing bypass flow only when needed.

Key Features

• 22mm compression fittings for quick installation
• Wide differential pressure range 0.05–0.5 bar
• High capacity flow up to 50 litres per minute
• 16 bar maximum working pressure
• 120°C intermittent temperature rating
• Ensures constant flow through the boiler
• Recommended by DEFRA CHeSS guide and required by UK Building Regulations when a bypass is fitted

Specifications

• Connections: 22mm compression
• Differential pressure range: 0.05 to 0.5 bar
• Maximum working pressure: 16 bar
• Maximum intermittent temperature: 120°C
• Flow capacity: up to 50 litres per minute

Applications

Boiler bypass or system bypass in central heating systems fitted with thermostatic radiator valves.

What’s in the box

ESABV22 Automatic Bypass Valve.