valvola multifunzionale 95730822 The chamber stack is turned

The chamber stack is turned upside-down to ensure that the shaft seal is not affected by the high pump discharge pressure

Spring material is Alloy C-4 (NiMo16CrTi

300 and 500 litres include additionally:

The agitator must be protected against dry-running

The VFI is the industrial version (4-20 mA output) of the Grundfos vortex flow meter range

valvola multifunzionale 95730822 The chamber stack is turnedCompact valve unit for direct mounting on the pump discharge connection. Multifunction valves combine four functions: 1. Constant counter pressure and anti siphoning 2. Pump protection through pressure relief 3. Deaeration of pump head during start up 4. Emptying of discharge line