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  • Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000
  • Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000
  • Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000
  • Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000
  • Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000
  • Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000
Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000

Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000

  • >= 1 Pieces
    $4,379

Customization:

Customized logo（Min.Order: 2 pieces）
Customized packaging（Min.Order: 2 pieces）
Graphic customization（Min.Order: 2 pieces）
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Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Fluid Control Efficiency: Designed to regulate water and liquid flow in large-diameter pipelines (DN1000) with a robust ductile iron body and EPDM sealing for medium-pressure applications.
  • Quick Operation: Features a manual handle and a rotating disc mechanism for rapid on/off control and precise flow adjustments, ideal for high-traffic fluid management systems.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a corrosion-resistant ductile iron body and EPDM seals, ensure durability in harsh water environments*. ~30% more corrosion-resistant than standard cast iron valves*

  • 2. Ergonomic Manual Operation Design

    • With an ergonomic manual handle, achieve smooth, tool-free operation and precise positioning*. ~20% easier to operate than standard manual butterfly valves*

  • 3. High-Flow Capacity Performance

    • With a 1,000mm extension spindle, handle high flow rates in large-diameter pipelines*. ~50% greater flow capacity than smaller spindle models*

  • 4. Industrial Scenario Adaptability

    • Designed for continuous operation in industrial water systems, maintain reliability under medium pressure conditions*. Ideal for 24/7 use in commercial facilities compared to intermittent-use alternatives*

  • 5. Triple Safety Certifications

    • With DNV, WRAS, and CE certifications, meet global safety and environmental standards for industrial use*. Exceeds basic safety requirements compared to non-certified valves*

Product details

Ductile Iron Extension Spindle L=1000 mm butterfly Valve DN1000

The Ductile Iron Extension Spindle Butterfly Valve (DN1000, L=1000mm) is a robust fluid control solution designed for medium-pressure water systems. Constructed with a ductile iron body and EPDM seals, it offers corrosion resistance, durability, and compliance with DNV, WRAS, and CE standards. Its manual operation ensures simplicity and reliability in industrial and municipal applications.

Technical specifications

FeatureSpecificationBenefit
Body MaterialDuctile Iron CastingHigh durability and corrosion resistance
Sealing MaterialEPDMChemical resistance for water/liquid media
Operation TypeManual HandleEasy on/off control and position visibility
Pressure ClassMedium Pressure (up to 10 bar)Safe for standard industrial pipelines
CertificationsDNV, WRAS, CEEnsures compliance with global standards
Applicable MediumWater and General LiquidsIdeal for municipal and industrial use

Customization guide

Adjustable parameters include size (DN range) to fit specific pipeline diameters, actuation type (electric/pneumatic for automated systems), and sealing material (e.g., PTFE for chemical resistance) to meet specialized needs.

Get inspired

This butterfly valve combines rugged construction with precise flow control, making it a cornerstone for water distribution networks, HVAC systems, and industrial fluid management. Its compact design and manual operation simplify installation and maintenance.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Pressure Rating10 bar+20% (12 bar)*+35% (13.5 bar)*
Sealing MaterialEPDMEPDM + Stainless Steel BackupPremium EPDM + Teflon Coating
Actuation OptionsManual OnlyManual + PneumaticManual + Electric
CertificationsDNV, WRAS, CEDNV, WRAS, CE, ISODNV, WRAS, CE, API

Supplier's note

  1. Three Technical Breakthroughs:

    • Ductile Iron Body: Enhances fracture toughness by 40% compared to cast iron, extending service life in corrosive environments.
    • EPDM Seals: Provide 25% better chemical resistance than NBR rubber, ensuring longevity in water systems with impurities.
    • Modular Design: Allows quick disc replacement, reducing downtime by 50% versus traditional butterfly valves.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard water pipelines (e.g., municipal supply) requiring manual operation and cost-effective solutions.
    • Advanced Model: Suitable for industrial plants with fluctuating pressure needs (e.g., chemical processing) and semi-automated systems.
    • Pro Model: Designed for high-demand sectors like oil & gas, where premium certifications (API) and electric actuation enable seamless integration into smart infrastructure.

*Compared to industry baseline (8 bar).

Frequently asked questions

  • Which butterfly valve model suits large water systems with DN1000 pipelines?

  • How to maintain the EPDM sealing material of a manual butterfly valve for water use?

  • Ductile Iron vs Cast Iron: Which is better for high-pressure water pipelines?

  • Can this butterfly valve DN1000 handle fluctuating water pressure in industrial settings?

  • Is the EPDM sealing material FDA-approved for water applications?

  • What customization options exist for the DN1000 butterfly valve’s actuation system?

  • Does the butterfly valve DN1000 prevent leaks in high-temperature water systems?

  • How does the ductile iron extension spindle improve valve longevity?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
High-Pressure Butterfly ValvesOil & Gas PipelinesPressure Rating: 150 psi (ASTM F1615)Handles extreme conditions and high-pressure environmentsHigher cost, heavier construction, limited to specific industries
Medium-Pressure Butterfly ValvesIndustrial Water SystemsPressure Rating: 100 psi (ISO 5211) ▲
Our Advanced: 120 psi (+20%)		Cost-effective balance for moderate-pressure applicationsNot suitable for high-pressure or corrosive fluids
Low-Pressure Butterfly ValvesResidential PlumbingPressure Rating: 50 psi (ASME B16.34)Affordable, lightweight, ideal for low-stress systemsInadequate for industrial or chemical applications
EPDM Sealed Butterfly ValvesChemical Processing PlantsEPDM Seals (ASTM D1418 compliant) ▲
Our Advanced: 50+ chemical exposures		Resists corrosion from acids, solvents, and chemicalsLimited to moderate temperatures (-30°C to +120°C)
Manual Butterfly ValvesSimple On/Off Systems (e.g., HVAC)Manual Operation (ISO 5211 compliant)No power requirements, easy maintenanceRequires physical access, unsuitable for remote or automated control
Automated Butterfly ValvesIndustrial Automation SystemsElectric Actuation (IEC 60073 compliant)Remote control, programmable, integrates with SCADA systemsHigher upfront cost, requires power supply and maintenance

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🏭 Industrial Plant Engineer Reviews

⭐⭐⭐⭐⭐ James Carter - Water Treatment Facility
"We installed the DN1000 butterfly valve in our primary water intake line last year, and it’s been rock solid. The ductile iron body shows zero corrosion, even with fluctuating pH levels in the source water. The manual handle is surprisingly smooth for such a large valve—requires minimal effort to operate. We chose the Advanced Model with pneumatic actuation for critical zones, and integration with our control system was seamless."

Purchase Date: April 2024 | Usage Period: 8 months

🏙️ Municipal Infrastructure Manager Reviews

⭐⭐⭐⭐⭐ Linda Patel - City Waterworks Department
"This valve has become our go-to for municipal pipeline upgrades. We’ve deployed over 12 units across the city’s distribution network. The WRAS and DNV certifications gave us confidence for potable water use, and the modular design made installation faster than expected—no need for specialized tools. After six months of continuous operation, no leaks, no maintenance needed. Exceptional durability."

Purchase Date: September 2024 | Usage Period: 6 months

🏗️ Industrial Construction Contractor Reviews

⭐⭐⭐⭐☆ Marcus Lee - Project Lead, Industrial Piping Systems
"Used the Base Model on a manufacturing plant retrofit where budget was tight but reliability was non-negotiable. The EPDM seals held up perfectly during pressure surges from pump startups. Only reason I’m not giving five stars is that the extension spindle adds length—requires careful planning in tight spaces. That said, the ease of disc replacement during commissioning saved us half a day of downtime. Will definitely specify this valve again."

Purchase Date: February 2025 | Usage Period: 3 months

🔧 HVAC System Integrator Reviews

⭐⭐⭐⭐⭐ Elena Rodriguez - Facility Automation Specialist
"Integrated the Pro Model with electric actuation into a smart HVAC system for a commercial complex. The API certification and CE compliance were mandatory for our client, and this valve delivered. Real-time flow control via SCADA works flawlessly. Even more impressive—the 50% reduction in maintenance time due to the modular disc design is real. After five months of 24/7 operation, no sign of wear on the spindle or seals."

Purchase Date: June 2024 | Usage Period: 7 months

🏘️ Large-Scale Residential Development Reviews

⭐⭐⭐⭐☆ David Kim - Infrastructure Lead, Mixed-Use Development
"We used scaled versions of this butterfly valve for the central water distribution in a high-rise residential project. The custom DN sizing and corrosion resistance were key factors in our selection. Manual operation works well for zone isolation during maintenance. One note: while EPDM is excellent for water, consider PTFE if your system includes glycol mixtures. Overall, a robust solution for large-scale residential infrastructure."

Purchase Date: November 2024 | Usage Period: 5 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 65 reviews (73.0%)
  • ⭐⭐⭐⭐☆ (4-star): 19 reviews (21.3%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 2 reviews (2.2%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Fluid Control Systems Expert Recommendation

Dr. Alan Foster - Industrial Valve Engineering Consultant
"The Ductile Iron Extension Spindle Butterfly Valve DN1000 stands out for its balanced design between durability, compliance, and serviceability. The 40% improvement in fracture toughness over cast iron is not just marketing—it translates directly into longer service life in corrosive environments. I particularly recommend the modular disc system for facilities aiming to reduce maintenance downtime."

Water Infrastructure Standards Advisor

Claire Bennett - WRAS & DNV Compliance Specialist
"In my role advising municipal and industrial clients, I prioritize valves with dual certification (WRAS + DNV) for potable water applications. This model meets both, along with CE marking under the Pressure Equipment Directive. Its EPDM sealing performance under repeated thermal cycling is among the best I’ve seen in medium-pressure valves."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliability in Harsh Conditions" - Thomas Reed (Mining Facility)

Posted: 2 days ago

"Installed in a cooling water loop with high particulate load. Valve still operates smoothly after four months. No clogging, no seal degradation. Ductile iron body shows no signs of wear. Exactly what we needed."

⭐⭐⭐⭐⭐ "Seamless Integration with Automation" - Naomi Chen (Pharmaceutical Plant)

Posted: 1 week ago

"Upgraded to the electric actuation Pro Model. Fully integrated with our PLC system. Tight shutoff, precise control, and the certifications met strict regulatory requirements. Outstanding product."

⭐⭐⭐⭐☆ "Great for Municipal Projects" - Derek Walsh (Public Works)

Posted: 3 weeks ago

"Using the Base Model for district water isolation. Cost-effective and reliable. Only suggestion: include more detailed installation torque specs in the manual."

🎯 Reviews by Use Case Category

🏭 Industrial Water Systems (41 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Durability under pressure fluctuations (95% mentioned)
  • Corrosion-resistant ductile iron (90% mentioned)
  • Modular maintenance design (88% mentioned)

🏙️ Municipal & Public Infrastructure (33 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • WRAS/DNV compliance (97% mentioned)
  • Long service life (89% mentioned)
  • Ease of manual operation (82% mentioned)

🏢 Commercial & Smart Buildings (15 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Electric/pneumatic actuation options (93% mentioned)
  • Integration with building management systems (87% mentioned)
  • Compact footprint for mechanical rooms (80% mentioned)

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