IBO MIX4 DN20 ZAWÓR 4 DROGOWY ogrzewanie The dual mechanical sealing system OPA000036 The dual mechanical sealing system protects the motor from water even if the first impeller side seal is damaged – the second seal operates submerged in the oil chamber on the motor side The 4" SPINOX with an IPRO oil filled motor is a multistage deep well pump designed for drawing and pumping raw untreated water from drilled deep wells before the water treatment process – including supplying domestic systems and agricultural and industrial agricultural and industrial applications The four way mixing valve is used to regulate the water temperature in the installation Mixing valves are ideal for systems where an accurate central heating supply temperature or boiler return protection is required