Indus Industrial Group supplies heavy-duty Large-Diameter Water Transmission Gate Valves engineered across nominal diameters from DN700 to DN1400 in pressure class PN16 according to EN 1171, EN 1074-1/2, and BS 5163 standards. Designed specifically for cross-country municipal water transmission trunk lines, raw river water conveyor aqueducts, and reservoir dam outlet works across Iraq, these heavy-wall ductile iron valves feature fully encapsulated resilient wedges or bronze-trimmed dual gates, enclosed oil-lubricated bevel gear operators (IP68), and integrated parallel bypass valve assemblies to equalize pressure before opening.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standards | EN 1171 / EN 1074-1/2 / BS 5163 / ISO 7259 / AWWA C509 |
| Nominal Diameter Range | DN700, DN800, DN900, DN1000, DN1200, DN1400 |
| Pressure Class | PN16 (16 Bar continuous / 24 Bar shell test) |
| Body & Bonnet | Ductile Iron EN-GJS-500-7 (min 420 MPa tensile strength) |
| Wedge Assembly | Ductile Iron fully vulcanized in EPDM / Bronze Seat Trimmed |
| Bypass Assembly | DN50 / DN80 / DN100 Integral Ductile Iron Bypass with Isolating Valve |
| Drive Gearbox | Heavy-Duty Bevel Gearbox IP68 / Ratio up to 30:1 with Handwheel |
| Stem Material | Forged Stainless Steel AISI 420 / 316 (High Torsional Strength) |
| Flange Standards | EN 1092-2 / ISO 7005-2 PN16 Flanged |
| Corrosion Protection | Fusion-Bonded Epoxy (FBE ≥ 250 µm) WRAS Drinking Water Certified |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Resilient Gate Valves |
Regional municipal water transmission trunk lines, river raw water aqueduct booster stations, dam bottom outlet isolation chambers, and major reservoir intake manifolds across Baghdad, Erbil, Basra, Wasit, and Nineveh.
Large-Diameter Water Transmission Gate Valves provide the ultimate heavy-duty isolation technology for mega-scale municipal water transfer lines, regional raw water booster stations, and strategic water security schemes across Iraq. In massive transmission pipelines carrying treated drinking water or raw river water across governorates (e.g., Tigris conveyance to Baghdad, Euphrates supplies to Muthanna and Basra), isolation valves must withstand enormous hydrostatic end-thrust forces exceeding hundreds of metric tons. Indus large-diameter gate valves are cast from heavy-section spheroidal graphite ductile iron (EN-GJS-500-7) with heavy internal stiffening ribs engineered to resist pipeline bending moments without body distortion.
To overcome the immense differential pressure holding the heavy gate against its seat, each valve is equipped with an integrated flanged bypass valve assembly (DN50 to DN100). Prior to opening the main valve, operators open the bypass line to equalize upstream and downstream water pressure, dramatically reducing opening torque and preventing destructive water hammer surges in downstream dry pipelines. The main drive features a heavy-duty enclosed bevel gearbox with grease/oil bath lubrication (IP68 submersible rated) and multi-roller axial thrust bearings.
Finished inside and out with heavy fusion-bonded epoxy (min 250 µm, WRAS certified) or internal cement mortar lining, the valve resists aggressive desert groundwater and mineral-rich river water. Staged across our Erbil Heavy Plant Yard, Baghdad Central Logistics Depot, and Basra Port Hub, Indus supplies large transmission gate valves with bypass trim, mechanical position indicators, and full EN 10204 3.1 inspection certification.
On a closed DN1000 valve at 16 Bar pressure, the water force pushing the wedge against the seat exceeds 120 metric tons. Attempting to open the valve under this load causes severe seat friction and can strip the stem nut. The bypass valve equalizes the water pressure on both sides of the wedge, allowing smooth, low-torque opening without equipment damage.
Yes. All Indus large-diameter gate valves feature standardized ISO 5210 top mounting flanges on the bevel gearbox, allowing direct mounting of Rotork, Auma, or Indus electric motor actuators without dismantling the gearbox.
Valves weighing up to 8 to 15 metric tons are mobilized using specialized heavy flatbed trailers equipped with custom cradle supports and offloaded using certified mobile cranes direct to pipeline trenches across all Iraqi governorates.
