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Manual Stainless Steel Flange 5 Inch butterfly Valve for Sea Water

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Fluid Control: Designed to regulate and shut off the flow of water, oil, and gas in pipelines through a manual stainless steel disc mechanism.
  • Sealing Efficiency: Equipped with PTFE seals to ensure leak-proof performance even under low-pressure conditions, ideal for corrosive environments like seawater systems.

Key features

  • 1. Corrosion-Resistant Material Technology

  • With a stainless steel body and PTFE seals, you can achieve 30% longer lifespan than cast iron valves in harsh environments like seawater*. The corrosion-resistant materials ensure durability against saltwater corrosion and chemical exposure, maintaining performance over extended use.

  • 2. User-Friendly Interactive Design

  • With a sturdy manual handle and bolted bonnet design, you can reduce maintenance downtime by up to 50% compared to welded alternatives*. The bolted bonnet allows easy access to the disc for cleaning or replacement without disassembling the pipeline, while the ergonomic handle ensures effortless manual operation.

  • 3. Versatile Performance Parameters

  • With compatibility for water, oil, and gas under low pressure, you can adapt to 3x more applications than single-media valves*. The valve’s design efficiently controls fluid flow across diverse media types, making it ideal for plumbing, marine, and light industrial systems.

  • 4. Marine-Grade Scenario Solutions

  • Designed for marine and industrial pipelines, this valve maintains performance in corrosive seawater, outlasting standard valves by 40% in durability*. The flange connections enable seamless integration into existing systems, ensuring reliable operation in harsh coastal or offshore environments.

  • 5. Certified Safety and Quality

  • With CE certification, you can ensure compliance with EU safety and quality standards, surpassing non-certified competitors*. The certification guarantees the valve meets strict requirements for pressure resistance, material integrity, and environmental safety.

Product details

Manual Stainless Steel Flange 5 Inch butterfly Valve for Sea Water

The Manual Stainless Steel Flange 5 Inch Butterfly Valve is designed for reliable fluid control in harsh environments, such as seawater systems. Built with corrosion-resistant stainless steel and PTFE sealing, it ensures durability and leak-proof performance under low pressure. Certified to CE standards, this valve supports manual operation for easy on/off control of water, oil, and gas in industrial or marine applications.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialStainless Steel (body), PTFE (sealing)Corrosion-prone environments like seawater pipelines
Size5 inches (flange connection)Medium-flow systems in industrial plants
Pressure RatingLow pressure (up to 10 bar)Residential or light industrial use
CertificationCE-compliantEU-standardized marine and oil facilities
Operation TypeManual handleManual control in remote or low-tech settings
Bolted Bonnet DesignEasy access for maintenanceFrequent inspection or disc replacement

Customization guide

Adjustable parameters include material composition (e.g., 316 stainless steel for extreme corrosion resistance) and pressure ratings (up to 16 bar for high-demand scenarios). Custom flange sizes or PTFE seal thickness can be tailored for specialized applications like offshore drilling or chemical processing.

Get inspired

With its robust stainless steel construction and PTFE seals, this valve provides long-term reliability in corrosive or abrasive media. Ideal for seawater desalination plants, oil pipelines, or gas distribution systems where low-pressure control and easy maintenance are critical.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Pressure Rating10 bar (low)+15% (11.5 bar)+30% (13 bar)*
Corrosion ResistanceStandard (SS304)+20% (SS316)+40% (Duplex Steel)
Sealing EfficiencyPTFE (standard)PTFE + GraphitePTFE + Carbon Fiber

Supplier's note

  1. Three Technical Breakthroughs:

    • Stainless Steel Body: Withstands seawater corrosion 30% better than carbon steel valves.
    • PTFE Sealing: Eliminates leakage in high-temperature oil systems (up to 230°C).
    • CE Certification: Meets EU safety standards for pressure and material durability.
  2. Optimal Version Selection:

    • Base Model: Ideal for general industrial use (e.g., water treatment plants) where cost efficiency is prioritized.
    • Advanced Model: Suitable for offshore platforms or chemical plants needing SS316 corrosion resistance and enhanced sealing.
    • Pro Model: Best for high-pressure marine applications (e.g., desalination systems) with its duplex steel body and carbon fiber-reinforced seals, offering 50% longer lifespan than competitors.

*Pro Model pressure rating exceeds industry benchmarks by 30% for heavy-duty scenarios.

Frequently asked questions

  • Which butterfly valve is suitable for seawater applications in marine environments?

  • How do I clean and maintain the disc of a manual stainless steel butterfly valve?

  • Stainless Steel vs Cast Iron: Which material is better for corrosive seawater valves?

  • Can this 5-inch butterfly valve be customized for higher pressure ratings or flange sizes?

  • Is the stainless steel butterfly valve CE-certified for industrial use?

  • Why choose a manual butterfly valve over electric models for low-pressure systems?

  • How does PTFE sealing ensure leak-proof performance in butterfly valves?

  • What makes this 5-inch butterfly valve ideal for low-pressure pipelines?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Industry Standard Butterfly ValveBasic industrial pipelines (low pressure)Cast Iron Body (ASTM A48), EPDM Seals (ASTM D2000), Class 150 (14.5 bar)
Medium: Water, Oil
Cost-effective, widely available, simple design.Prone to corrosion, limited to non-corrosive fluids, lower pressure rating.
Our Base Butterfly ValveGeneral industrial use (factories, HVAC)Stainless Steel Body (ASTM A276), PTFE Seals (ASTM D1777)
Class 150 (14.5 bar)
Medium: Water, Oil, Gas
Corrosion-resistant, chemical compatibility, manual operation simplicity.Lower pressure capacity, no advanced sealing for extreme conditions.
Our Advanced Butterfly ValveHigh-pressure, corrosive environments▲▲ 316L Stainless Steel (ASTM A276), ▲ PTFE + Backup Rings (ASTM D1777)
Class 300 (42 bar)
Certified for acids/chemicals
▲▲ High-pressure tolerance, ▲ Enhanced sealing for harsh fluids, CE-compliant.Higher cost, heavier, requires skilled installation.
Ball ValveHigh-pressure fluid systems (oil/gas)Quarter-turn design, full bore, Trunnion-mounted for high-pressure (Class 900+)Minimal pressure drop, tight shutoff, durable under high pressure.Costly, complex design, not suitable for slurry or abrasive fluids.
Gate ValveFull-flow applications (water pipelines)Linear motion, full-bore design (ASME B16.34), Ductile Iron Body (ASTM A487)Zero flow restriction, ideal for full-open use, long lifespan.Cannot throttle flow, slow operation, vulnerable to debris.
Diaphragm ValveSlurry, viscous, or abrasive fluidsFlexible EPDM/Nitrile Diaphragm (ISO 5208), No internal leakage pathsHandles abrasive fluids, hygienic design, no moving parts in fluid path.Low pressure rating (Class 15 max), limited to specific media types.

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