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Jul . 22, 2025 00:01 Back to list

2 Inch Butterfly Valve | High-Performance & Compact



Butterfly valves represent critical flow control solutions across industrial applications, with the 2 inch butterfly valve being one of the most versatile and commonly specified sizes. As industries increasingly demand precision fluid handling, understanding the engineering specifications, material science, and operational parameters of these components becomes essential. This guide examines the 2 in butterfly valve alongside larger variants like the 16 inch butterfly valve and 18 inch butterfly valve, providing technical insights validated by industry standards.

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NINGJIN COUNTY HONGDA VALVE CO.,LTD.

Global manufacturer of industrial valves meeting international quality standards since 1998

Phone: +8618633052223
Mobile: +8618633866685
Email: njhdvlz@163.com
Address: Development area of Huanmadian, NingJin county, Hebei province, China

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Featured Product: Series F101 U-Section Wafer Type Butterfly Valve

2 Inch Butterfly Valve | High-Performance & Compact

Technical Compliance: MSS SP-67, BS5155, API 609

Flange Compatibility: GB, ANSI, DIN, BS, JIS

Sizes: 1½″ to 48″ (including standard 2 inch butterfly valve and custom 18 inch butterfly valve)

Design Variants: Wafer type, Lug type, U-section wafer type body

Full Technical Specifications
2 Inch Butterfly Valve | High-Performance & Compact 2 Inch Butterfly Valve | High-Performance & Compact

Technical Parameters & Performance Metrics

Standard Specifications for 2 Inch Butterfly Valves
Parameter Standard Range High-Performance Sanitary Grade
Pressure Rating 150 PSI 250 PSI 100 PSI
Temperature Range -20°F to 400°F -320°F to 1000°F 32°F to 250°F
Flow Coefficient (Cv) 55-65 48-58 60-70
Seat Materials EPDM, Buna-N PTFE, PEEK Silicone, EPDM

Pressure Tolerance Comparison by Valve Size

Material Selection by Application

Flow Efficiency (Cv) by Valve Design

Industrial Applications by Valve Size

2 inch butterfly valve Applications

  • Chemical dosing systems
  • HVAC chilled water circuits
  • Food processing lines
  • Pharmaceutical transfer systems
  • Semiconductor cooling systems

16/18 inch butterfly valve Applications

  • Municipal water treatment plants
  • Power plant cooling systems
  • Bulk chemical transfer
  • Oil & gas pipeline manifolds
  • Shipboard firefighting systems
"The shift toward engineered polymers in valve seating has increased the reliability of 2 in butterfly valve components in abrasive media applications by 60% compared to traditional elastomers."

Technical FAQ: Butterfly Valve Engineering

Q1: What design advantages does a U-section wafer valve offer?
The U-section design creates superior flange clamping force distribution, preventing line distortion especially in higher pressure applications of 2 inch butterfly valve installations.
Q2: How does API 609 certification impact valve selection?
API 609 certification ensures the valve meets rigorous fire-safe testing protocols and double-offset design standards required in hydrocarbon processing applications.
Q3: What factors determine disc material selection?
Selection depends on media compatibility, temperature, pressure and corrosion requirements. Common options include aluminum bronze for seawater applications and 316L stainless steel for sanitary processes.
Q4: Can a 18 butterfly valve handle steam applications?
With appropriate PTFE/PFA seat materials and extended gland packing, specially engineered butterfly valves can handle saturated steam up to 356°F at 150 PSI.
Q5: What installation errors cause premature failure?
Common issues include inadequate piping support near flange connections, improper actuator torque calibration, and failure to clean pipe interiors before commissioning.
Q6: How do triple-offset designs differ?
Triple-offset valves feature conical seat geometry and metal-to-metal sealing surfaces, eliminating friction during operation and enabling zero-leakage performance in critical applications.
Q7: What are the key automation considerations?
Actuator selection must account for required torque values, fail-safe positions, control signals (4-20mA, digital), and explosion-proof certifications where applicable.

Emerging Industry Developments

The valve industry is witnessing increased demand for specialized solutions:

Smart Valve Integration

Embedded IoT sensors in industrial valves provide real-time monitoring of operating parameters. As noted in Flow Control Magazine, modern 2 in butterfly valve installations increasingly feature wireless torque monitoring.

Material Advancements

Development of reinforced thermoplastic composites for seats and seals has enabled 300% longer service life in abrasive slurry applications according to Materials Engineering Journal studies.

Standardization Efforts

The European Committee for Standardization is developing new testing protocols for high-cycle valves, impacting manufacturing requirements for 18 inch butterfly valve products in water treatment applications.

Technical References & Industry Citations


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