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  • Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400
  • Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400
  • Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400
  • Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400
  • Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400
  • Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400
Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400
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Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400

  • >= 1 Sets
    $50
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Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Backflow Prevention: Designed to ensure unidirectional fluid flow, preventing reverse flow in water systems to avoid contamination or damage.
  • Dual Plate Butterfly Mechanism: Utilizes a vertical wafer butterfly flap for efficient sealing and low-pressure drop, optimized for manual operation in water-based applications.

Key features

  • 1. Durable Material Technology for Harsh Environments

    • With a combination of ductile iron (WCB) and corrosion-resistant stainless steel (CF8M), you can ensure long-lasting performance in harsh environments. The CF8M stainless steel body resists chemical corrosion and wear, making it ideal for industrial water systems. ~30% more corrosion-resistant than cast iron valves*.

  • 2. User-Friendly DIN Flange Design for Easy Installation

    • With a DIN flange design, you can achieve quick and secure installation in existing systems. The flange allows seamless integration with standard pipelines, reducing downtime during setup. Up to 20% faster installation compared to lug-style valves*.

  • 3. Efficient Butterfly Flap Mechanism for Rapid Closure

    • With a butterfly flap mechanism, you can achieve rapid closure to prevent backflow, ensuring efficient operation with minimal pressure loss. The spring-assisted flap design guarantees immediate response to reverse flow, reducing energy waste. Reduces pressure loss by 15% compared to globe valves*.

  • 4. Versatile Scenario Solutions for Industrial & Commercial Use

    • Designed for both industrial pipelines and commercial water systems, you can prevent contamination and ensure safe fluid flow in critical applications. The DN15-25 size range accommodates diverse pipe systems, from residential plumbing to high-capacity industrial setups.

  • 5. Compliance with Industry Safety Standards

    • Constructed with food-grade stainless steel (CF8M), it meets NSF/ANSI 61 standards for potable water systems, ensuring safety and compliance in applications where purity is critical. The robust design also complies with DIN flange specifications for industrial reliability.

Product details

Dual Plate Manual Power Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve with DIN Flange OEM DN40-DN1400

The Dual Plate Ductile Iron Universal Vertical Wafer Butterfly Flap Type Check Valve is engineered for reliable bidirectional fluid flow control in plumbing and industrial systems. Constructed with corrosion-resistant materials like stainless steel (CF8M) and ductile iron, it ensures durability in harsh environments. Its DIN flange design and spring-actuated flapper mechanism guarantee precise backflow prevention, making it ideal for water-based applications.

Technical specifications

FeatureSpecificationBenefit
MaterialStainless Steel (CF8M), Ductile IronCorrosion resistance for long service life
DesignVertical wafer butterfly flapLow-pressure drop and easy maintenance
Pressure RatingDN15-25 (Customizable)Adapts to diverse pipeline requirements
Flange StandardDIN-compliantSeamless integration with industrial systems
OperationManualSimple installation and control

Customization guide

Adjustable parameters:

  • Size/Pressure Rating: Customize DN15-25 to match pipe dimensions and system pressure needs.
  • Material: Choose stainless steel for chemical resistance or ductile iron for cost-effective durability.
  • Flange Configuration: Modify flange dimensions to align with existing infrastructure.

Get inspired

This check valve’s robust design and spring-loaded mechanism ensure reliable backflow prevention in water systems. Its DIN flange compatibility simplifies installation in industrial pipelines, while corrosion-resistant materials extend its lifespan in aggressive environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Pressure Rating150 psi225 psi (+50%)300 psi (+100%)
Temperature Range-20°C to 120°C-30°C to 150°C-40°C to 200°C
Corrosion ResistanceStandard (ASTM A276)Enhanced (316L Stainless)Premium (Duplex Steel)

Supplier's note

  1. Technical Breakthroughs:

    • Dual Plate Design: Reduces leakage by 40% compared to single-plate valves.
    • Spring Mechanism: Ensures consistent flapper positioning under fluctuating flow conditions.
    • Material Flexibility: Offers three grades of stainless steel to meet NSF/ANSI 61 or ISO 5211 standards.

  2. Optimal Version Selection:

    • Base Model: Ideal for residential water systems (e.g., domestic pipelines) where moderate pressure (≤150 psi) and standard corrosion resistance suffice.
    • Advanced Model: Suitable for industrial water treatment plants requiring higher pressure tolerance and resistance to chlorinated fluids.
    • Pro Model: Best for harsh chemical processing environments (e.g., acids, solvents) where extreme temperature ranges (-40°C to 200°C) and corrosion resistance are critical.

With its CF8M stainless steel construction, you can ensure durability in corrosive water systems. The Pro model’s Duplex Steel material provides 2x longer lifespan than traditional 304 stainless in chloride-rich environments. Pair its high-pressure rating with the flange design to achieve seamless integration in high-demand industrial setups.

Frequently asked questions

  • Which check valve model suits high-pressure water systems in industrial applications?

  • How do I clean the flapper mechanism of a stainless steel check valve?

  • Stainless Steel vs Ductile Iron: Which material is better for corrosive water systems?

  • Can this check valve be customized for specific pipe sizes and pressure needs?

  • Is the valve compliant with DIN standards for potable water systems?

  • What’s the maximum temperature rating for the ductile iron check valve?

  • Does the vertical design prevent backflow in upward-flowing pipelines?

  • Can this check valve be installed in tight spaces without maintenance access?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial pipelines, water treatmentIndustry Standard: WCB (ASTM A216)
Our Base: WCB + Ductile Iron (ASTM A536)
Our Advanced: 304 Stainless Steel (ASTM A312)▲		Base: Cost-effective for general use.
Advanced: Corrosion resistance for harsh fluids.▲		Advanced: Higher upfront cost.▲
Corrosion ResistanceChemical plants, seawater systemsIndustry Standard: 500+ hours neutral salt spray (ASTM B117)
Our Base: 800 hours▲
Our Advanced: 2,000 hours▲		Base: Outperforms standards in mildly corrosive environments.
Advanced: Ideal for aggressive chemicals.▲		Base: Limited for extreme acids.▲
Pressure RatingHigh-pressure industrial systemsIndustry Standard: 150 psi (Class 150 ANSI/ASME)
Our Base: 300 psi▲
Our Advanced: 600 psi▲		Base: Handles most industrial pipelines.
Advanced: For high-pressure applications like oil refineries.▲		Advanced: Requires thicker walls, bulkier design.▲
Noise LevelHospitals, office buildingsIndustry Standard: 45 dBA (ISO 3744)
Our Base: 38 dBA▲
Our Advanced: 32 dBA▲		Base: Quieter than standard valves (quieter than a whisper).
Advanced: Hospital-grade silence.▲		Advanced: More complex damping mechanisms increase cost.▲
Maintenance RequirementsContinuous operation systemsIndustry Standard: MTBF 5,000 hours
Our Base: MTBF 10,000 hours▲
Our Advanced: MTBF 20,000 hours▲		Base: Reduces downtime by 50%.
Advanced: Minimal servicing for 2 years.▲		Advanced: Requires specialized lubricants.▲
Installation FlexibilityRetrofitting legacy systemsIndustry Standard: Flange only (ISO 5211)
Our Base: Flange + Threaded▲
Our Advanced: Flange + Threaded + Push-fit▲		Base: Adapts to mixed systems.
Advanced: Plug-and-play for quick installations.▲		Advanced: Limited to specific pipe types.▲

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