Non-Return Valve - 20mm (3/4") type_filtration 43 10 11 3

43 10 11 3

Automat AQ air release valves automatically vent trapped air from irrigation mains at system start-up and admit air during system shutdown to prevent vacuum lock and pipe collapse

27 38 43 1

85 46 53 2

15 40 46 2

Non-Return Valve - 20mm (3/4") type_filtration 43 10 11 3In line non return (check) valves prevent backflow in irrigation pipework, protecting the main water supply from contamination and preventing pump damage from reverse spin when power is interrupted. Available in a full range of sizes from 15mm to 50mm for installation at pump outlets, fertigation injection points and sub main branch points where flow reversal could cause system damage or health hazard.