{ "$schema": "https://indusiraq.com/schemas/agentic-product-dossier-v1.json", "endpoint_meta": { "version": "1.0", "protocol": "AISO-Headless-Agent-Dossier", "generated_at": "2026-11-10T23:14:46+03:00", "audit_cycle": "Autonomous Monthly Rolling Review (Assigned Day 11 of Month)", "canonical_html_url": "https://indusiraq.com/product/din-3352-f4-resilient-seated-gate-valves-dn50-dn600", "endpoint_json_url": "https://indusiraq.com/product/din-3352-f4-resilient-seated-gate-valves-dn50-dn600.json", "authority": "Indus Industrial Group - Iraq Central Engineering & Procurement Directorate", "indexing_directive": "noindex, follow, noarchive, nosnippet (Canonical authority belongs to HTML URL)", "rate_limiting": "unrestricted (Open public access for autonomous agents & procurement bots)", "encoding": "UTF-8" }, "product_identity": { "id": 38, "sku": "IND-PRD-000038", "name": "DIN 3352 F4 Short Body Resilient Seated Gate Valves (DN50–DN600, PN10 / PN16 / PN25, EN 1074)", "slug": "din-3352-f4-resilient-seated-gate-valves-dn50-dn600", "status": "active", "views_count": 5, "inquiries_count": 0, "created_at": "2026-09-11T22:40:48+03:00", "updated_at": "2026-11-10T23:14:46+03:00", "last_audited_at": "2026-11-10T23:14:46+03:00", "review_cadence": "Monthly Continuous Verification" }, "classification": { "sector": { "id": 1, "code": "SEC-01", "name": "Water & Wastewater", "slug": "water-wastewater", "url": "https://indusiraq.com/division/water-wastewater" }, "category": { "id": 8, "name": "Resilient Gate Valves", "slug": "resilient-gate-valves", "market_demand": "booming", "views_count": 33, "url": "https://indusiraq.com/category/resilient-gate-valves" }, "subcategory": { "id": 9, "name": "Resilient Seated Gate Valve Systems", "slug": "resilient-gate-valve-systems", "target_buyer_type": "Water Distribution Engineers, Municipal Contractors, Valve Technicians" } }, "engineering_specifications": { "Governing Standards": "EN 1074-1/2 / EN 1171 / DIN 3352 Part 4 / ISO 7259", "Face-to-Face Standard": "EN 558-1 Series 14 / DIN 3202 F4 (Short Pattern)", "Nominal Diameter Range": "DN50 to DN600 (Metric Flanged)", "Pressure Ratings": "PN10, PN16, PN25 (Bar)", "Body & Bonnet Material": "Ductile Iron EN-GJS-500-7 (min 420 MPa tensile strength)", "Wedge Material": "Ductile Iron fully vulcanized in EPDM Rubber (WRAS certified)", "Stem Material": "Stainless Steel AISI 420 / AISI 304 / AISI 316 (Non-Rising)", "Stem Nut": "High-Tensile Forged Brass / Aluminum Bronze", "Flange Standard": "EN 1092-2 / ISO 7005-2 (PN10 / PN16 / PN25 Drilled)", "Leakage Rate": "Rate A (Zero Allowable Leakage per ISO 5208)" }, "core_features": [ "Full straight-through unobstructed bore without bottom pocket, preventing sediment accumulation.", "Ductile iron wedge 100% encapsulated in drinking-water grade EPDM elastomer (WRAS certified).", "Heavy ductile iron body (EN-GJS-500-7) compliant with EN 1074, EN 1171, and DIN 3352 F4.", "Cold-rolled stainless steel stem with multiple O-ring seals replaceable under full line pressure.", "Fusion-bonded epoxy coating (≥250 µm) providing total corrosion protection inside and out.", "Nominal diameter range spanning DN50 to DN600 in PN10, PN16, and PN25 pressure ratings." ], "qualified_applications": [ "Municipal potable drinking water distribution networks, pump station isolation headers, water treatment plant filter manifolds, reservoir intake and outlet chambers, and fire protection isolation lines across Baghdad, Erbil, Basra, Najaf, Karbala, and Kirkuk." ], "engineering_analysis": { "summary": "DIN 3352 F4 resilient seated gate valves DN50–DN600 PN10/PN16/PN25 per EN 1074/EN 1171. EPDM encapsulated wedge. Staged in Erbil, Baghdad & Basra.", "field_analysis": "DIN 3352 F4 Short Pattern Resilient Seated Gate Valves represent the definitive municipal isolation valve standard across Federal Iraq and the Kurdistan Region. Governed by EN 1074-1/2, EN 1171, and ISO 7259 standards, these valves eliminate the fatal failure mode of traditional metal-seated gate valves: sediment and sand deposition in bottom body recesses that prevents complete valve closure. The F4 valve body features a smooth, unobstructed straight-through bore (full bore) without any bottom pocket. When closed, the precision ductile iron wedge, completely encapsulated in high-grade EPDM elastomer with vulcanized bonding per ISO 815, compresses seamlessly against the smooth interior floor of the body, guaranteeing zero-leakage (Rate A per ISO 5208) bi-directional shutoff.\n\nThe mechanical drivetrain features a cold-rolled, high-strength stainless steel stem (AISI 420 / 316) with rolled Acme trapezoidal threads, delivering low operational closing torque and exceptional cycle life. Multiple O-ring stem seals located inside a separate sealing collar isolate the internal pipeline pressure from the atmospheric environment, allowing stem seal replacement under full working pressure without de-energizing the main. The short face-to-face dimension (EN 558-1 Series 14) saves valuable space inside congested urban valve chambers in Baghdad, Erbil, and Basra.\n\nCorrosion protection is achieved through electrostatic blue fusion-bonded epoxy (FBE) coating (minimum 250 microns, tested for zero holidays at 1.5 kV) inside and outside, ensuring total immunity to subsoil graphitization and highly aggressive groundwater. Staged across our Erbil Heavy Yard, Baghdad Logistics Hub, and Basra Port Corridor, Indus supplies F4 gate valves with handwheels, electric actuator top flanges (ISO 5211), and full EN 10204 3.1 inspection certification.", "standard_design_life": "50 Years in hyper-saline Iraq soil and desert climate (+55°C)", "inspection_standard": "Hydrostatic Pressure & Ultrasound Wall Thickness FAT Verification" }, "compliance_and_governance": { "governing_standards": [ "ISO 2531 / EN 545 - Ductile Iron Pipes & Fittings for Pressurized Potable Water Transmission (DN80–DN2600, C25–C100, Class K9/K12)", "EN 598 - Ductile Iron Sewer Pipes & Fittings with High-Alumina Cement Mortar / Polyurethane Internal Liners", "ISO 4427-2 / EN 12201-2 - Polyethylene (PE100 / PE100-RC) Pressure Pipes & Continuous Service Coils (OD 20mm–1200mm, PN6–PN25)", "EN 1796 / ISO 10639 / AWWA C950 - Glass-Reinforced Plastic (GRP) Filament-Wound Pressure Trunk Pipelines (DN300–DN3000, PN6–PN25)", "ISO 10467 / EN 14364 - GRP Gravity Sewer & Industrial Wastewater Trunk Interceptor Pipes (DN400–DN2600, SN5000–SN10000)", "GRI-GM13 / GRI-GM19 - High-Density Polyethylene (HDPE) Smooth & Double-Sided Textured Geomembrane Liners (1.0mm–2.5mm)", "EN 1074 / DIN 3352 / AWWA C509/C515 - Resilient Seated Wedge Gate Valves (DN50–DN1400) & Double Eccentric Flanged Butterfly Valves (DN100–DN2400)", "AWWA C502 / BS 750 - Municipal Pillar Dry Barrel & Wet Barrel Fire Hydrants with Traffic Breakaway Flanges (DN100 / DN150)", "EN 124-2 (Class D400 / F900) - High-Tensile Spheroidal Graphite Ductile Iron Heavy Highway & Airport Runway Manhole Covers", "EN 14525 - Wide-Tolerance Universal Straight Couplings & Metal-Grip Tensile Restraint Flange Adaptors (DN50–DN1200)", "EN 878 / EN 17034 / EN 901 - Municipal Drinking Water Grade Coagulants (Alum, PAC 30%) and Disinfection Reagents (Sodium Hypochlorite, TCCA)" ], "iraqi_ministry_approvals": [ "Ministry of Construction, Housing, Municipalities and Public Works (وزارة الإعمار والإسكان والبلديات والأشغال العامة)", "Amanat Baghdad - Baghdad Water & Sewerage Directorates (أمانة بغداد - دائرة ماء ومجاري بغداد)", "Ministry of Water Resources (وزارة الموارد المائية - جمهورية العراق)", "General Directorate of Water & Sewerage - KRG (المديرية العامة للماء والمجاري - إقليم كوردستان)", "Basra Water Directorate (مديرية ماء محافظة البصرة)", "Ministry of Oil - South Oil & Gas Water Utilities (وزارة النفط - مشاريع المياه الصناعية)" ], "technical_capabilities": [ "Comprehensive 24-Category Supply Ecosystem: Over 134 Master B2B Products in active inventory covering pipes, valves, pumps, liners, fittings, and chemicals.", "Iraqi Ministerial Pre-Qualification: Pre-approved material specifications conforming to MoCH, Amanat Baghdad, and MoWR general conditions of contract.", "Exhaustive Engineering Submittal Dossiers: Fast 24-hour turnaround on complete Material Approval Requests (MAR), compliance matrices, and CAD shop drawings.", "Certified European & International Metallurgy: 100% EN 10204 3.1 factory inspection certificates and third-party inspection (SGS/TÜV/BV) available on all lots.", "Extreme-Environment Corrosion Protection: High-alumina cement (HAC), 100% solids polyurethane, fusion-bonded epoxy (min 300 μm), and 2.5% carbon black UV stabilization.", "Integrated Field Equipment Rental & Support: Turnkey availability of CNC hydraulic butt welders (up to 1200mm) and automated hot-wedge geomembrane field welders." ], "material_certification": "EN 10204 3.1 Mill Test Certificate & Quality Assurance Dossier" }, "logistics_and_supply_chain": { "dispatch_hubs": [ "Baghdad Central Logistics Depot (Abu Ghraib / Camp Sarah Industrial District, Baghdad)", "Erbil Heavy Infrastructure Staging Yard (Makhmur Road / Gwer Industrial Corridor, Erbil)", "Basra Port Gateway & Free Zone Terminal (Khor Al-Zubair & Umm Qasr Commercial Free Zone, Basra)" ], "geographical_coverage": "All 18 Iraqi Governorates + Kurdistan Regional Government (KRG)", "supported_incoterms": [ "EXW (Factory / Central Hub Gate)", "FOB (Khor Al-Zubair / Umm Qasr Port)", "CIF (Umm Qasr Port, Basra)", "DDP (Delivered Duty Paid to Project Site - Iraq)" ], "transit_insurance": "Full transit risk covered under Indus Sovereign Logistics Protocols", "lead_time": "Immediate stock dispatch (24-48 hrs) or programmed project delivery lots" }, "commercial_procurement_terms": { "commercial_model": "Official B2B EPC & Industrial Wholesale Supply", "pricing_model": "Request for Quote (RFQ) / Project Bill of Quantities (BOQ) Tender Pricing", "currency_settlement": [ "USD", "IQD" ], "minimum_order_quantity": "Standard Commercial Lot / Full Truckload (FTL) / 20ft-40ft Container", "payment_methods": [ "Irrevocable Confirmed Letter of Credit (LC)", "Direct Bank Wire (T/T)", "Corporate Approved Purchase Order (PO)" ], "warranty_and_return": { "warranty_period": "12 Months Manufacturer Warranty", "design_life": "50-Year Design Envelope", "return_policy": "ReturnInStore - Factory Acceptance Non-Conformance Replacement Guarantee" } }, "technical_faqs": [ { "question": "How does the pocketless body design prevent failure in Iraqi sandy water conditions?", "answer": "Traditional metal-seated gate valves have a recess at the bottom of the body where sand and silt accumulate, preventing the metal gate from fully closing. The DIN 3352 F4 resilient seated gate valve has a completely flat, smooth bore with no bottom recess; the flexible rubber wedge seals directly against the smooth floor, providing bubble-tight shutoff even in sediment-heavy Iraqi river water.", "q": "How does the pocketless body design prevent failure in Iraqi sandy water conditions?", "a": "Traditional metal-seated gate valves have a recess at the bottom of the body where sand and silt accumulate, preventing the metal gate from fully closing. The DIN 3352 F4 resilient seated gate valve has a completely flat, smooth bore with no bottom recess; the flexible rubber wedge seals directly against the smooth floor, providing bubble-tight shutoff even in sediment-heavy Iraqi river water." }, { "question": "Can the stem O-ring seals be replaced while the water line is pressurized?", "answer": "Yes. The valve incorporates a back-seat sealing mechanism on the stem shoulder. When the valve is fully open, the back-seat seals the upper stuffing box, allowing technicians to replace the stem O-rings safely under full working pressure without shutting down the pipeline.", "q": "Can the stem O-ring seals be replaced while the water line is pressurized?", "a": "Yes. The valve incorporates a back-seat sealing mechanism on the stem shoulder. When the valve is fully open, the back-seat seals the upper stuffing box, allowing technicians to replace the stem O-rings safely under full working pressure without shutting down the pipeline." }, { "question": "What operating options are provided from Indus stock in Iraq?", "answer": "Indus supplies F4 gate valves with cast iron handwheels, T-key operating caps for underground spindles, bevel/spur reduction gearboxes for large diameters (DN350+), and ISO 5211 top flanges for electric actuator mounting across all Iraqi governorates.", "q": "What operating options are provided from Indus stock in Iraq?", "a": "Indus supplies F4 gate valves with cast iron handwheels, T-key operating caps for underground spindles, bevel/spur reduction gearboxes for large diameters (DN350+), and ISO 5211 top flanges for electric actuator mounting across all Iraqi governorates." } ], "agent_execution_hooks": { "description": "Deterministic action schemas for autonomous AI agents (OpenAI Operator, Claude, 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Staged in Erbil, Baghdad & Basra.", "inLanguage": "en", "isPartOf": { "@type": "WebSite", "@id": "https://indusiraq.com/#website", "name": "Indus Industrial Group - Iraq", "url": "https://indusiraq.com/" }, "author": { "@type": "Organization", "@id": "https://indusiraq.com/division/water-wastewater#directorate", "name": "Indus Division 01: Water & Wastewater Engineering Directorate" }, "publisher": { "@type": "Corporation", "@id": "https://indusiraq.com/#corporation", "name": "Indus Industrial Group - Iraq", "logo": { "@type": "ImageObject", "url": "https://indusiraq.com/assets/images/indus_logo.png" } }, "mainEntity": { "@id": "https://indusiraq.com/product/din-3352-f4-resilient-seated-gate-valves-dn50-dn600#product" }, "breadcrumb": { "@id": "https://indusiraq.com/product/din-3352-f4-resilient-seated-gate-valves-dn50-dn600#breadcrumbs" }, "keywords": "DIN 3352 F4 Short Body Resilient Seated Gate Valves (DN50–DN600, PN10 / PN16 / PN25, EN 1074) Iraq, DIN 3352 F4 Short Body Resilient Seated Gate Valves (DN50–DN600, PN10 / PN16 / PN25, EN 1074), resilient seated gate valve iraq, din 3352 f4 gate valve baghdad, en 1074 gate valve erbil, ductile iron gate valve basra, epdm wedge gate valve pn16, full bore water gate valve dn200 dn300, indus gate valve tender, water infrastructure iraq, ductile iron pipes baghdad, hdpe pipe supplier erbil, municipal water procurement iraq, grp sewer pipe basra, gate valve supplier iraq" }, { "@type": "TechArticle", "@id": "https://indusiraq.com/product/din-3352-f4-resilient-seated-gate-valves-dn50-dn600#technical-brief", "headline": "Technical Field Evaluation: DIN 3352 F4 Short Body Resilient Seated Gate Valves (DN50–DN600, PN10 / PN16 / PN25, EN 1074)", "name": "Engineering Datasheet & Field Compliance Dossier", "description": "DIN 3352 F4 Short Pattern Resilient Seated Gate Valves represent the definitive municipal isolation valve standard across Federal Iraq and the Kurdistan Region. Governed by EN 1074-1/2, EN 1171,...", "articleBody": "DIN 3352 F4 Short Pattern Resilient Seated Gate Valves represent the definitive municipal isolation valve standard across Federal Iraq and the Kurdistan Region. Governed by EN 1074-1/2, EN 1171, and ISO 7259 standards, these valves eliminate the fatal failure mode of traditional metal-seated gate valves: sediment and sand deposition in bottom body recesses that prevents complete valve closure. The F4 valve body features a smooth, unobstructed straight-through bore (full bore) without any bottom pocket. When closed, the precision ductile iron wedge, completely encapsulated in high-grade EPDM elastomer with vulcanized bonding per ISO 815, compresses seamlessly against the smooth interior floor of the body, guaranteeing zero-leakage (Rate A per ISO 5208) bi-directional shutoff.\n\nThe mechanical drivetrain features a cold-rolled, high-strength stainless steel stem (AISI 420 / 316) with rolled Acme trapezoidal threads, delivering low operational closing torque and exceptional cycle life. Multiple O-ring stem seals located inside a separate sealing collar isolate the internal pipeline pressure from the atmospheric environment, allowing stem seal replacement under full working pressure without de-energizing the main. The short face-to-face dimension (EN 558-1 Series 14) saves valuable space inside congested urban valve chambers in Baghdad, Erbil, and Basra.\n\nCorrosion protection is achieved through electrostatic blue fusion-bonded epoxy (FBE) coating (minimum 250 microns, tested for zero holidays at 1.5 kV) inside and outside, ensuring total immunity to subsoil graphitization and highly aggressive groundwater. Staged across our Erbil Heavy Yard, Baghdad Logistics Hub, and Basra Port Corridor, Indus supplies F4 gate valves with handwheels, electric actuator top flanges (ISO 5211), and full EN 10204 3.1 inspection certification.", "image": [ "https://indusiraq.com/assets/images/indus_logo.png" ], "datePublished": "2026-09-11T22:40:48+03:00", "dateModified": "2026-11-10T23:14:46+03:00", "author": { "@type": "Organization", "@id": "https://indusiraq.com/division/water-wastewater#directorate", "name": "Indus Division 01: Water & Wastewater Engineering Directorate" }, "publisher": { "@type": "Corporation", "@id": "https://indusiraq.com/#corporation", "name": "Indus Industrial Group - Iraq", "logo": { "@type": "ImageObject", "url": "https://indusiraq.com/assets/images/indus_logo.png" } }, "inLanguage": "en", "about": { "@id": "https://indusiraq.com/product/din-3352-f4-resilient-seated-gate-valves-dn50-dn600#product" } }, { "@type": "FAQPage", "@id": "https://indusiraq.com/product/din-3352-f4-resilient-seated-gate-valves-dn50-dn600#faq", "mainEntity": [ { "@type": "Question", "name": "How does the pocketless body design prevent failure in Iraqi sandy water conditions?", "acceptedAnswer": { "@type": "Answer", "text": "Traditional metal-seated gate valves have a recess at the bottom of the body where sand and silt accumulate, preventing the metal gate from fully closing. The DIN 3352 F4 resilient seated gate valve has a completely flat, smooth bore with no bottom recess; the flexible rubber wedge seals directly against the smooth floor, providing bubble-tight shutoff even in sediment-heavy Iraqi river water." } }, { "@type": "Question", "name": "Can the stem O-ring seals be replaced while the water line is pressurized?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The valve incorporates a back-seat sealing mechanism on the stem shoulder. When the valve is fully open, the back-seat seals the upper stuffing box, allowing technicians to replace the stem O-rings safely under full working pressure without shutting down the pipeline." } }, { "@type": "Question", "name": "What operating options are provided from Indus stock in Iraq?", "acceptedAnswer": { "@type": "Answer", "text": "Indus supplies F4 gate valves with cast iron handwheels, T-key operating caps for underground spindles, bevel/spur reduction gearboxes for large diameters (DN350+), and ISO 5211 top flanges for electric actuator mounting across all Iraqi governorates." } } ] } ] } }