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Jul . 22, 2025 13:01 Back to list

3 Butterfly Valve Dimensions with Reliable Factory & Supplier Options



3 Butterfly Valve Dimensions with Reliable Factory & Supplier Options
Company: NINGJIN COUNTY HONGDA VALVE CO.,LTD.
Website: https://www.hongdavalve.com
Tel: +86 18633052223
Mobile: +86 18633866685
Email: njhdvlz@163.com
Address: Development area of Huanmadian, NingJin county, Hebei province, China.

Industry Overview: Trends in Butterfly Valve Dimensioning

The declining cost of raw materials and adoption of automation systems have led to significant growth in the global valve industry. As industries such as chemical processing, water treatment, oil & gas, and HVAC strengthen their requirements for flow control and isolation, precision in 3 butterfly valve dimensions is becoming increasingly critical.

Technical standardization—spanning from 3 butterfly valve dimensions to 6 lug butterfly valve and even more complex assemblies—facilitates interoperability, ease of maintenance, and regulatory compliance. The emergence of smart actuation and predictive maintenance further demands exact technical parameters, enhancing the need for reliable 3 butterfly valve dimensions supplier and reputable factories.

3 Butterfly Valve Dimensions with Reliable Factory & Supplier Options 3 Butterfly Valve Dimensions with Reliable Factory & Supplier Options

Product Highlight: LUG TYPE BUTTERFLY VALVE

LUG TYPE BUTTERFLY VALVE
Key Features:

  • Available with handles (2″ to 12″), manual gear operators (2″ to 12″), and electric/pneumatic actuators (2″ to 12″)
  • Multiple body/trim combinations—versatile for a wide range of applications
  • Complies with major international standards—API, ASME, ISO
  • Low operational torque, tight shutoff, zero-leakage in resilient seat models
  • Traceable material certificates and factory inspections for each batch
Product URL: https://www.hongdavalve.com/lug-type-butterfly-valve.html

Understanding 3 butterfly valve dimensions

The term 3 butterfly valve dimensions typically refers to valves sized for a 3-inch nominal diameter. These dimensions are crucial in ensuring interchangeability and ease of installation, as well as guaranteeing reliable shut-off and control in industrial pipelines. Below is a consolidated reference of 3 butterfly valve dimensions sourced from industry manufacturers and standards:

Parameter Imperial (inches) Metric (mm) Description
Valve Size 3" 80 Nominal bore diameter
Face-to-Face (A) 1.69 – 2.16 43 – 55 Distance between valve faces
Flange OD (B) 6.62 – 7.5 168 – 190 Outside diameter of mating flange
Number of Lugs 4 / 6 4 / 6 Varies by model (see 4 & 6 lug)
Standard Pressure Rating 150 psi 10 bar Most common for industrial use
Top Flange ISO 5211 F05 — Mounting pad type
Port Diameter 2.95 – 3.00 75 – 76 Free flow area
Bolt Hole Diameter 0.62 – 0.75 16 – 19 For flange bolts
*Values vary by standard (ANSI, EN, JIS). Always verify with supplier datasheet.

Technical Parameter Trends: 3 butterfly valve dimensions (Visualization)

Comparative Data Visualization: LUG TYPE BUTTERFLY VALVE

The following charts enable industrial buyers and engineers to evaluate the main technical indicators for LUG TYPE BUTTERFLY VALVE—a product line used extensively for its ease of installation and flexibility:

Material Selection (Pie Chart)

Pressure Ratings by Valve Size (Line Chart)

Industry Perspective: Application Scenarios of 3 Butterfly Valve Dimensions

  • Water Treatment and Distribution: Used for flow control and isolation in pipelines, thanks to standardized 3 butterfly valve dimensions enabling universal fit.
  • Oil & Gas Transmission: 4 lug style butterfly valve variants are applied where two-sided maintenance is needed.
  • Chemical Processing: High corrosion-resistant alloys and precise dimensioning prevent leaks and process contamination.
  • HVAC Systems: Compact design with 6 lug style butterfly valve ensures secure mounting and uninterrupted operation.
  • Fire Protection Systems: Quick-actuating LUG TYPE BUTTERFLY VALVE is used to isolate zones efficiently.
  • Pulp & Paper, Mining: Handles abrasives, and the modular dimensioning (e.g., 6 lug butterfly valve) ensures robust service and rapid changes.

Supplier & Factory Expertise: NINGJIN COUNTY HONGDA VALVE CO.,LTD.

As a leading 3 butterfly valve dimensions factory and trustworthy 3 butterfly valve dimensions supplier, NINGJIN COUNTY HONGDA VALVE CO.,LTD. distinguishes itself by:

  • Adhering rigorously to ISO 9001:2015 and API certifications
  • Full-cycle testing—hydrostatic, pneumatic, seat leakage
  • Extensive in-house metallurgy and surface treatment capabilities
  • Custom engineering for non-standard valve dimensions and smart automation requirements
  • Rapid prototyping and on-time delivery across industries
For detailed technical drawings, datasheets, or to discuss large volume imports, visit their updated LUG TYPE BUTTERFLY VALVE product page: 3 butterfly valve dimensions.

Expert FAQ: Butterfly Valve Technology and Specification

Q1: What materials are typically used for lug style butterfly valves?

A: Common materials include ductile iron (for body), stainless steel (for disk and stem), and EPDM/PTFE (for seat). The selection depends on media compatibility and pressure rating requirements. Consult supplier material certificates for exact compositions.

Q2: What standards govern 3 butterfly valve dimensions?

A: ANSI (ASME B16.10), EN (DIN 3202), and JIS B2032 are globally recognized norms. Each defines the permitted face-to-face length, flange compatibility, and port diameter for 3-inch butterfly valves.

Q3: How is a 4 lug style butterfly valve installed, and when is it preferred?

A: A 4 lug style butterfly valve contains four threaded lugs allowing direct bolting between two flanges. It is preferred in low-pressure, low-torque scenarios or where full isolation is not required during pipeline maintenance.

Q4: What are the pressure ratings typically available for 6 lug butterfly valve models?

A: 6 lug butterfly valve variants can handle up to 150 psi (10 bar) for 3-inch sizes, with higher lug counts providing better pressure resistance and versatility in dead-end service.

Q5: What is the importance of the ISO 5211 top flange standard?

A: ISO 5211 standardizes actuator mounting pads, enabling direct coupling of pneumatic/electric actuators and ensuring inter-brand compatibility for installed valves.

Q6: How do handle, gear, and actuator operations differ?

A: Handles offer rapid quarter-turn manual control up to 12", gears provide torque-multiplied control for larger or high-pressure valves, and actuators (electric/pneumatic) automate operation for remote or process-critical systems.

Q7: What traceability and certification are critical for project procurement?

A: Full traceability includes material heat numbers, valve serials, certified pressure/hydrostatic test reports, and compliance with ISO/API standards. This is especially vital when sourcing from a 3 butterfly valve dimensions factory for regulated industries.

Conclusion: The Evolution and Future of 3 butterfly valve dimensions

In conclusion, specifying 3 butterfly valve dimensions with precision ensures modularity and durability in industrial systems, while the rise of adaptable 4 lug style butterfly valve, 6 lug butterfly valve, and smart actuation technologies continues to propel the industry forward.

Choosing a proven supplier such as NINGJIN COUNTY HONGDA VALVE CO.,LTD. guarantees not only conformance to global standards but also delivery of innovation, traceability, and after-sales support. For orders, collaborations, or technical discussions, contact:
+86 18633052223  |  njhdvlz@163.com

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