tender for quoting rate for sand and carbon filter with electro chlorination systems 2026-27 , subwork 1 :- sand filter , sediment sand filter vessel of size 23x 76 with multi port valve and other accessories complete with concrete foundation. , vessel overall height - 1933 mm(76.1 inch) diameter - 584.2 mm (23 inch) empty weight - 200 kgs for 1 vessel operating weight - 1500 kgs for 1 vessel external coating- primer + two coats enamel paint capacity and flow flow rate - 2.0-3.5 m³/hr filtration rate - 8-15 m³/m³/hr filter media details activated carbon - 8x30 mesh, iodine 2900 mg/g, depth 300-400 mm anthracite - 0.8-1.2 mm, depth 200-300 mm silica sand - 0.5-1.0 mm, depth 300-400 mm support gravel - 3-25 mm, depth 150-200 mm internal arrangement top distributor - ss/pvc under drain - ss/pp nozzles manhole - 300-450 mm dia central riser - pipe connections inlet/outlet - 40 nb drain - 25 nb operating parameters air vent - 15 nb inlet turbidity - $50 ntu duration - 10-15 minutes outlet turbidity - $5 nt u max temperature - 50°c pressure drop - 0.2-0.5 kg/cm² backwashing frequency - 2-3 days accessories pressure gauges sampling valve air release valve drain valve butterfly/ball valves piping , subwork 1 :- carbon filter , activated carbon filter vessel of size 23x 72 with multi port valve and other accessories complete with concrete foundation. , vessel overall height - 1933 mm(76.1 inch) diameter - 584.2 mm (23 inch) empty weight - 200 kgs for 1 vessel operating weight - 1500 kgs for 1 vessel external coating- primer + two coats enamel paint capacity and flow flow rate - 2.0-3.5 m³/hr filtration rate - 8-15 m³/m³/hr filter media details activated carbon - 8x30 mesh, iodine 2900 mg/g, depth 300-400 mm anthracite - 0.8-1.2 mm, depth 200-300 mm silica sand - 0.5-1.0 mm, depth 300-400 mm support gravel - 3-25 mm, depth 150-200 mm internal arrangement top distributor - ss/pvc under drain - ss/pp nozzles manhole - 300-450 mm dia central riser - pipe connections inlet/outlet - 40 nb drain - 25 nb operating parameters air vent - 15 nb inlet turbidity - $50 ntu duration - 10-15 minutes outlet turbidity - $5 nt u max temperature - 50°c pressure drop - 0.2-0.5 kg/cm² backwashing frequency - 2-3 days accessories pressure gauges sampling valve air release valve drain valve butterfly/ball valves piping , sand & pebbles , 1000iv activated carbon