{ "$schema": "https://indusiraq.com/schemas/agentic-product-dossier-v1.json", "endpoint_meta": { "version": "1.0", "protocol": "AISO-Headless-Agent-Dossier", "generated_at": "2026-10-14T20:53:37+03:00", "audit_cycle": "Autonomous Monthly Rolling Review (Assigned Day 14 of Month)", "canonical_html_url": "https://indusiraq.com/product/concentric-rubber-lined-flanged-butterfly-valves", "endpoint_json_url": "https://indusiraq.com/product/concentric-rubber-lined-flanged-butterfly-valves.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": 41, "sku": "IND-PRD-000041", "name": "Concentric Rubber-Lined Flanged Butterfly Valves (DN50–DN1200, PN10 / PN16, EN 593)", "slug": "concentric-rubber-lined-flanged-butterfly-valves", "status": "active", "views_count": 3, "inquiries_count": 0, "created_at": "2026-09-11T22:40:48+03:00", "updated_at": "2026-10-14T20:53:37+03:00", "last_audited_at": "2026-10-14T20:53:37+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": 9, "name": "Flanged Butterfly Valves", "slug": "flanged-butterfly-valves", "market_demand": "booming", "views_count": 18, "url": "https://indusiraq.com/category/flanged-butterfly-valves" }, "subcategory": { "id": 10, "name": "Flanged Butterfly Valve Systems", "slug": "flanged-butterfly-valve-systems", "target_buyer_type": "Water Transmission Engineers, Water Treatment Plant EPCs, Plant Managers" } }, "engineering_specifications": { "Governing Standards": "EN 593 / ISO 10631 / BS 5155 / API 609 Category A", "Face-to-Face Standard": "EN 558-1 Series 13 (Short Flanged) / ISO 5752", "Nominal Diameter Range": "DN50 to DN1200 (Metric Schedule)", "Pressure Classes": "PN10, PN16 (Bar)", "Body Material": "Ductile Iron EN-GJS-450-10 / EN-GJS-500-7", "Disc Material": "Stainless Steel AISI 316 / CF8M / Ductile Iron with Epoxy Coating", "Liner Material": "High-Grade EPDM (Drinking Water WRAS) / NBR (Sewage/Oil)", "Stem Material": "Stainless Steel AISI 420 / AISI 316", "Flange Compatibility": "EN 1092-2 / ISO 7005-2 (PN10 / PN16 Drilling)", "Operating Temperature": "-10°C to +80°C (EPDM) / -10°C to +70°C (NBR)" }, "core_features": [ "Full vulcanized or replaceable EPDM/NBR body liner isolating valve body from line medium.", "Integrated rubber flange sealing faces eliminating the need for separate companion gaskets.", "Ductile iron body (EN-GJS-450-10) with fusion-bonded epoxy protective finish (≥250 µm).", "Polished disc with spherical edge profile providing bubble-tight shutoff with minimal operating torque.", "Bi-directional sealing capability up to 16 Bar continuous working pressure per ISO 5208.", "Nominal diameter range from DN50 to DN1200 with lever, gearbox, or actuator automation." ], "qualified_applications": [ "Municipal water distribution branch networks, wastewater treatment plant aeration manifolds, industrial pump suction isolation lines, cooling tower water circulation, and irrigation pumping stations across Baghdad, Erbil, Basra, Karbala, and Najaf." ], "engineering_analysis": { "summary": "Concentric rubber-lined flanged butterfly valves DN50–DN1200 PN10/PN16 per EN 593. EPDM/NBR cartridge liner. Staged in Erbil, Baghdad & Basra. Request RFQ.", "field_analysis": "Concentric Rubber-Lined Flanged Butterfly Valves provide a highly reliable, economical solution for flow isolation and throttling in municipal water distribution networks, wastewater treatment facilities, and industrial cooling loops throughout Iraq. Compliant with EN 593, ISO 10631, and API 609 standards, the concentric design positions the valve disc and stem symmetrically along the centerline of the pipe bore and the elastomer body liner. The resilient rubber seat cartridge extends over the flange sealing faces, creating an integral full-face elastomeric gasket that prevents internal fluid contact with the ductile iron body and eliminates the requirement for separate companion gaskets.\n\nThe disc is cast from high-grade ductile iron (with nylon or epoxy coating) or corrosion-resistant stainless steel (AISI 304/316), featuring precision-machined spherical sealing edges that seat smoothly into the resilient liner with uniform compression. The one-piece or two-piece stainless steel stem is supported by multiple low-friction PTFE/bronze bearings and secondary O-ring shaft seals, ensuring zero external atmospheric leakage even under frequent modulating cycles in water treatment dosing applications.\n\nIn Iraqi municipal projects where raw water carries dissolved salts and suspended sediments, the resilient EPDM liner resists abrasion and chemical scaling. Staged at our Erbil Heavy Yard, Baghdad Central Logistics Hub, and Basra Port Corridor, Indus supplies concentric flanged butterfly valves with multi-position lockable manual levers, enclosed worm gearboxes, and pneumatic/electric actuators for immediate project dispatch.", "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": "Are companion flange gaskets needed when installing rubber-lined butterfly valves?", "answer": "No. The elastomeric body liner wraps around both flange faces, acting as an integrated full-face rubber gasket. Applying separate gaskets is unnecessary and can cause uneven bolt torque; the valve flanges seal directly against the mating pipe flanges.", "q": "Are companion flange gaskets needed when installing rubber-lined butterfly valves?", "a": "No. The elastomeric body liner wraps around both flange faces, acting as an integrated full-face rubber gasket. Applying separate gaskets is unnecessary and can cause uneven bolt torque; the valve flanges seal directly against the mating pipe flanges." }, { "question": "Which liner material should be selected for municipal sewage versus drinking water in Iraq?", "answer": "For potable drinking water, WRAS-approved EPDM is recommended due to its hygiene certification and chlorine resistance. For wastewater, sewage containing fats/greases, or oily water, NBR (Nitrile) is selected to prevent hydrocarbon swelling.", "q": "Which liner material should be selected for municipal sewage versus drinking water in Iraq?", "a": "For potable drinking water, WRAS-approved EPDM is recommended due to its hygiene certification and chlorine resistance. For wastewater, sewage containing fats/greases, or oily water, NBR (Nitrile) is selected to prevent hydrocarbon swelling." }, { "question": "What is the delivery availability for large diameter butterfly valves in Iraq?", "answer": "Standard sizes up to DN600 are physically stocked in high volume at our Erbil, Baghdad, and Basra staging yards for 24-hour dispatch. Large transmission sizes (DN700 to DN1200) are staged for project deployment across all 19 governorates.", "q": "What is the delivery availability for large diameter butterfly valves in Iraq?", "a": "Standard sizes up to DN600 are physically stocked in high volume at our Erbil, Baghdad, and Basra staging yards for 24-hour dispatch. 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EPDM/NBR cartridge liner. Staged in Erbil, Baghdad & Basra. Request RFQ.", "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/concentric-rubber-lined-flanged-butterfly-valves#product" }, "breadcrumb": { "@id": "https://indusiraq.com/product/concentric-rubber-lined-flanged-butterfly-valves#breadcrumbs" }, "keywords": "Concentric Rubber-Lined Flanged Butterfly Valves (DN50–DN1200, PN10 / PN16, EN 593) Iraq, Concentric Rubber-Lined Flanged Butterfly Valves (DN50–DN1200, PN10 / PN16, EN 593), rubber lined butterfly valve iraq, concentric butterfly valve baghdad, epdm lined valve erbil, flanged butterfly valve pn16 basra, sewage butterfly valve nbr, drinking water butterfly valve iraq, indus butterfly valve supply, 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/concentric-rubber-lined-flanged-butterfly-valves#technical-brief", "headline": "Technical Field Evaluation: Concentric Rubber-Lined Flanged Butterfly Valves (DN50–DN1200, PN10 / PN16, EN 593)", "name": "Engineering Datasheet & Field Compliance Dossier", "description": "Concentric Rubber-Lined Flanged Butterfly Valves provide a highly reliable, economical solution for flow isolation and throttling in municipal water distribution networks, wastewater treatment...", "articleBody": "Concentric Rubber-Lined Flanged Butterfly Valves provide a highly reliable, economical solution for flow isolation and throttling in municipal water distribution networks, wastewater treatment facilities, and industrial cooling loops throughout Iraq. Compliant with EN 593, ISO 10631, and API 609 standards, the concentric design positions the valve disc and stem symmetrically along the centerline of the pipe bore and the elastomer body liner. The resilient rubber seat cartridge extends over the flange sealing faces, creating an integral full-face elastomeric gasket that prevents internal fluid contact with the ductile iron body and eliminates the requirement for separate companion gaskets.\n\nThe disc is cast from high-grade ductile iron (with nylon or epoxy coating) or corrosion-resistant stainless steel (AISI 304/316), featuring precision-machined spherical sealing edges that seat smoothly into the resilient liner with uniform compression. The one-piece or two-piece stainless steel stem is supported by multiple low-friction PTFE/bronze bearings and secondary O-ring shaft seals, ensuring zero external atmospheric leakage even under frequent modulating cycles in water treatment dosing applications.\n\nIn Iraqi municipal projects where raw water carries dissolved salts and suspended sediments, the resilient EPDM liner resists abrasion and chemical scaling. Staged at our Erbil Heavy Yard, Baghdad Central Logistics Hub, and Basra Port Corridor, Indus supplies concentric flanged butterfly valves with multi-position lockable manual levers, enclosed worm gearboxes, and pneumatic/electric actuators for immediate project dispatch.", "image": [ "https://indusiraq.com/assets/images/indus_logo.png" ], "datePublished": "2026-09-11T22:40:48+03:00", "dateModified": "2026-10-14T20:53:37+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/concentric-rubber-lined-flanged-butterfly-valves#product" } }, { "@type": "FAQPage", "@id": "https://indusiraq.com/product/concentric-rubber-lined-flanged-butterfly-valves#faq", "mainEntity": [ { "@type": "Question", "name": "Are companion flange gaskets needed when installing rubber-lined butterfly valves?", "acceptedAnswer": { "@type": "Answer", "text": "No. The elastomeric body liner wraps around both flange faces, acting as an integrated full-face rubber gasket. Applying separate gaskets is unnecessary and can cause uneven bolt torque; the valve flanges seal directly against the mating pipe flanges." } }, { "@type": "Question", "name": "Which liner material should be selected for municipal sewage versus drinking water in Iraq?", "acceptedAnswer": { "@type": "Answer", "text": "For potable drinking water, WRAS-approved EPDM is recommended due to its hygiene certification and chlorine resistance. For wastewater, sewage containing fats/greases, or oily water, NBR (Nitrile) is selected to prevent hydrocarbon swelling." } }, { "@type": "Question", "name": "What is the delivery availability for large diameter butterfly valves in Iraq?", "acceptedAnswer": { "@type": "Answer", "text": "Standard sizes up to DN600 are physically stocked in high volume at our Erbil, Baghdad, and Basra staging yards for 24-hour dispatch. Large transmission sizes (DN700 to DN1200) are staged for project deployment across all 19 governorates." } } ] } ] } }