Purchase of Technical Materials

SUPPLY AND FIX SCREEN HOUSE DRAWING: Technical Requirements Description Size 30m x 18m x Am (King post must be more than 5m) Vertical side post Galvanized tron pipe (G1) tube, galvanized both sides, 40mm diameter, 1.8-2.5mm thickness Vertical center post GI pipe tube, galvanized both sides, 40mm diameter, 1.8-2.5mm thickness Arch GI pipe tube, galvanized both sides, 40mm mm diameter, 1.8-2.5mm thickness Horizontal support Gl pipe tube, galvanized both sides, 25-32 mm diameter, 1.2-1,6mm thickness to connect all the arches Purlines for arches & Centre GI pipe tube, galvanized both sides, 25-32 mm diameter, 1.2-1.6 mm thickness Foundation Column footing should be not less than 60cm deep from ground level. Concrete ration of 1:2:4 Floor Floor should have gentle slope in order to allow drainage system. Roof cover UV treated black net and UV resistant transparent water proof nets, which is durable (250 macrons). Drainage system Should have drainage system that include gutters and inside trench to carry away unwanted water. Side cover Insect proof white colored net, Uv treated net with 75% of light diffusion Centre height Not less then 6 meter Side height 3-4 meters Entrance room & Door Tripple entrance room of size 2m x 2m x 2.5m , 5mx18mx6m, 18mx30mx6m (L x W x H) made aluminium profile covered with cover film, 200-micron thickness Fixing of cladding materials All ends/ joins of net house to be fixed with three-way aluminum profile with suitable locking arrangement such as zigzag high carbon steel with spring action wire of 2-3 mm diameter Civil Work Depth of foundation need be kept at 450mm. All vertical pipes grouted in cement concrete mixture with 1:2:4 ratios, Elevated concrete foundation wall of 30 cm high from the ground level surrounding entire structure; ground floor levelled 310,use BRC A66 reinforced concrete of 75mm thickness for floor construction. Footpath outside Surrounding paver block path of 1.2m wide around the structure. Irrigation facility Overhead sprinkler irrigation system should be installed. The suggested bill of materials must have Stand Filter, Control Valves, Bypass Assembly, Air Release Valve, Non-Return Valve, Throttle Valve, Flush Valve, Venturi Injector with manifold, PVC pipes, GS pipes, to be fixed with reference to design. Water tank and fittings & accessories (applicable for irrigation components as well as 10000 litres water tank installed outside the screenhouse