Boiler safety drain valve for use with ultrastore water heaters.Technical specifications: -Pump pressure max. 2.8 bar -System pressure max. 4.5bar -Closing temperature over approx. 7 c (ambient temperature) -Opening temperature below approx. 3 c (ambient temperature) -Operating temperature -30c – +80 c -Weight 200g -This version uses 10mm flexible hose connections.
