Double Flanged Short Pattern Butterfly Valve | Compact, Efficient Flow

1. Overview & Industry Trends

The double flanged short pattern butterfly valve is an advanced rotary valve engineered for efficient flow control in high-demand industrial pipelines. With its distinct double flanged design and compact short pattern body, this valve stands out for its reliability in critical applications where installation space and fluid isolation are key. Growing sectors—such as petrochemicals, pulp & paper, water treatment, and metallurgy—are rapidly integrating double flanged butterfly valves into their new and retrofit projects. According to MarketsandMarkets, the global butterfly valve market exceeded USD $10 Billion in 2023, with the double flange type segment exhibiting a steady 6.4% CAGR.

2. Key Technical Parameters and International Standards

The above parameters showcase how the double flanged short pattern butterfly valve aligns with top-tier industry standards, ensuring dependability across critical sectors.

3. Manufacturing Process Flowchart

Material and Quality Highlights

• Corrosion resistance: Seats in PTFE/EPDM. Discs with electroless nickel or bronze overlays for seawater/chemical resistance.
• Machining precision: ±0.01 mm stem and disc tolerances for no-vibration operation.
• Testing: 100% shell & seat leak test under ISO, API598; typically 4 bar above rated pressure.
• Certification: Most leading factories (inc. Hongda Valve) obtain CE, ISO9001, WRAS, FM/UL (fire protection), and customizable ANSI/EN marking.

4. Application Scenarios and Industry Case Studies

Comparative Technical Chart

5. Product Data Visualization

• Double Flanged Short Pattern Butterfly Valve offers superior sealing and support, making it suitable for higher pressure systems and aggressive fluids.
• Wafer and lug types, while cost-effective, lack the full double flanged sealing face, limiting their industrial applicability.

Life-cycle Performance Trend (Sampled Data)

6. Manufacturer Comparison Table

Why Choose Hongda’s double flanged short pattern butterfly valve?

• Versatile material selection and largest range (up to DN2000), covering most major pipeline needs.
• Continuous third-party audits (SGS, BV, Lloyd’s) and batch traceability.
• Optimal for high-cycle, low-maintenance scenarios; tailored OEM/ODM available.
• In-house R&D—adapts seat/disc for specific media, such as seawater, acids, or fire protection.

7. Customization Solutions

Double Flanged Short Type Butterfly Valve can be customized per project:

• Body, disc, and seat materials tailored for your fluid: e.g. SS316L for saltwater, FKM/PTFE for aggressive chemicals, bronze discs for anti-seawater erosion.
• Custom drilling/joint facings to match legacy pipework (EN, ANSI, JIS, GOST).
• Specialized coatings: heavy-duty epoxy, FDA food-grade lining, or ceramic/hardfacing for abrasion.
• Actuation: fitter-ready for ISO 5211, double-acting pneumatic, electric, or hydraulic actuators, plus auxiliary & smart sensors.
• Testing protocols: from routine EN 12266 to ISO 15848 emission, WRAS potable water, or fire-safe standards per FM/UL.

8. Typical Applications and Project References

Double flange valve installations are prevalent in major infrastructure and process industries:

• Municipal water distribution & treatment plants (contactless EPDM seat, 25-year average lifespan).
• Sinopec chemical plants, using fire-safe seat designs and automated operation.
• Suez/METITO water desalination, in saline conditions, using bronze discs and FKM seating.
• Power generation sites in Central Europe, with PTFE-seat, high-cycle variant (over 30k cycles/year with <1% leakage rate).

Sample Project Profiles

9. FAQs: Double Flanged Butterfly Valves

10. Warranty Period, Quality Commitment and Customer Support

• Warranty: Hongda double flanged short pattern butterfly valves come with a standard 24-month warranty from shipment date. Extended coverage available.
• After-sales: Full technical documentation, on-site commissioning support, remote troubleshooting, with 24/7 email & hotline response.
• Quality Assurance: Batch & serial number traceability, 100% pressure/leak tests (certificate provided), compliance with ISO 9001 QA system.
• Consultation: Assistance with valve selection, material compatibility, actuator integration, and retrofit for legacy systems.

References & Further Reading

• Flow Control Network: Butterfly Valve Selection Guide
• Valve World: What You Should Know About Double Flanged Butterfly Valves
• Hongda Valve Official Product Page
• ScienceDirect: Sealing Properties of Butterfly Valves in Industrial Application
• Eng-Tips Forum: Double Flanged Butterfly Valves—Practical Selection