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ივლ . 31, 2025 19:20 Back to list

Precise 3-Inch Butterfly Valve Dimensions | Durable Flow



Discover comprehensive insights into 3 butterfly valve dimensions and their critical role in modern piping solutions. Explore trends, technical parameters, production processes, and real-world applications—whether you’re sourcing from a leading 3 butterfly valve dimensions factory, evaluating suppliers, or comparing advanced lug style butterfly valves in 4-lug or 6-lug designs.

Industry Trends: The Evolution of 3 Butterfly Valve Designs

The butterfly valve market, projected to reach USD 13.7 billion by 2028 (MarketsandMarkets Report), is experiencing robust innovation, especially in compact sizes like 3-inch and 4-inch variants. The adoption of LUG TYPE BUTTERFLY VALVES—noted for their ease of installation and superior sealing under pressure—has become increasingly prevalent in sectors such as petrochemicals, metallurgy, water supply, and HVAC.

Table 1: 3 Butterfly Valve Dimensions – Standard Sizing & Key Parameters
Parameter 3" Wafer Type 3" Lug Type Description (Industry Standard)
Face-to-Face Length (mm) 64 64 EN558-1, ISO5752
Flange Compatibility ANSI 150/PN10/PN16 ANSI 150/PN10/PN16 Lug types allow dead-end service
Bolt Hole Diameter (mm) 19.1 19.1 6~8 holes, varies by standard
Overall Height (mm) 188 188 Handle/actuator excluded
Valve Disc Diameter (mm) 80 80 Full-bore design
Pressure Rating PN10/16, Class 150 PN10/16, Class 150 Standard test pressure as per ISO 5208
Temperature Range (°C) -20~+200 -20~+200 Depends on seat material
Material Options Cast iron, Ductile iron, SS Cast iron, Ductile iron, SS Body/disc customization available
Typical Application General purpose, low pressure Critical isolation, dead-end HVAC, Water, Industrial
Technical Advantages of LUG TYPE BUTTERFLY VALVE

LUG TYPE BUTTERFLY VALVE stands out for its robust mechanical structure and versatile usability. The unique lug design enables easy installation between two flanges and assures full tightness, even if one side of the pipeline is removed (dead-end service). Key technical enhancements include:

  • Material Excellence: Body crafted from ductile iron or high-strength stainless steel; disc frequently in A351 CF8/CF8M for corrosion resistance; seat in resilient EPDM/PTFE/NBR, suitable for aggressive chemicals.
  • Manufacturing Technology: Precision CNC machining for critical dimensions; shell & seat tested to API 598, ISO 5208, and EN 12266-1 leak-tightness standards.
  • Service Life: Tested cycles & mechanical reliability; typical life expectancy exceeds 50,000 cycles before maintenance.
  • Industry Certifications: Factory certified by ISO 9001:2015 and compliant with ANSI/ASME and DIN/EN standards.
  • Size Versatility: Available from 2" to 48" (DN50 - DN1200), with 3 butterfly valve dimensions as a standard offering for precise flow control.
Precise 3-Inch Butterfly Valve Dimensions | Durable Flow
Raw Material
Quality alloys, cast iron
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Precise 3-Inch Butterfly Valve Dimensions | Durable Flow
Casting & Forging
Valve body/disc pre-forming
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Precise 3-Inch Butterfly Valve Dimensions | Durable Flow
CNC Machining
Precision seat/disc finish
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Precise 3-Inch Butterfly Valve Dimensions | Durable Flow
Assembly
Disc, stem, seat integration
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Precise 3-Inch Butterfly Valve Dimensions | Durable Flow
Quality Testing
API/ISO seat & shell test
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Precise 3-Inch Butterfly Valve Dimensions | Durable Flow
Packing & Delivery
Secured, export-grade packaging
Manufacturing steps for 3 butterfly valve dimensions products. Each process follows ISO/ANSI standards for dimensional precision and functionality.
Application Scenarios & Advantages in Real-world Industries
Precise 3-Inch Butterfly Valve Dimensions | Durable Flow
  • Petrochemical: Resilient seats withstand hydrocarbon trasport; reliable shut-off for emergency lines; ATEX-certified models for explosion-proof environments.
  • Metallurgy: Used in water cooling lines, chemical dosing, and slurry management. Corrosion-resistant lug style butterfly valves support harsh process fluids.
  • Municipal Water & Wastewater: Zero leakage (
  • HVAC: Compact 3” valves offer tight control for chilled/hot water loops, reducing installation footprint.
  • Fire Protection: UL/FM listed designs support critical fire mains; proven in global pump house installations.

Customer feedback from 3 butterfly valve dimensions supplier surveys (2023) shows a 96.2% satisfaction rate for product reliability and delivery traceability.

Product Specification Comparison: 3" vs 4-Lug & 6-Lug Styles
Table 2: Lug Style Butterfly Valve Comparison (3", 4-Lug, 6-Lug)
Feature 3” Lug Type
Butterfly Valve		 4 Lug Style
Butterfly Valve		 6 Lug Style
Butterfly Valve
Mounting Holes 8 4 6
PN/Class Rating PN10/16,
Class 150		 PN10/16,
Class 150		 PN10/16,
Class 150
Face-to-Face (mm) 64 70 70
Body Material Ductile Iron/
CF8/CF8M		 Ductile Iron/
WCB		 Ductile Iron/
WCB
Disc/Stem Material SS 304/316 SS 304/316 SS 304/316
Dead-end Service Yes No No
Corrosive Media Capability High Medium Medium
Custom Options Body/Seat/Disc Limited Limited
4 lug style butterfly valve and 6 lug butterfly valve designs typically suit regional standards and offer mounting flexibility, but only the classic 8-lug design supports reliable dead-end service.
Technical Indicator Dashboard: Data Visualization
Charts: Visual comparison of LUG TYPE BUTTERFLY VALVE (3 inch) technical data, real-world material selection (2023), and verified user feedback ratio.
Leading Factories & Supplier Comparison

When selecting a 3 butterfly valve dimensions factory or supplier, essential criteria include ISO certification, production capacity, traceability systems, and custom engineering support.

Table 3: Supplier Overview – Core Strengths
Factory/Supplier Certifications Key Product Size Annual Output After-Sales Service
Hongda Valve
LUG TYPE 		ISO 9001:2015, CE 2"–48"
3 butterfly valve dimensions		 60,000 pcs 7x24h
Online tracking
Zhejiang X* Valve Co. API 609, ISO 9001 2"–36" 32,000 pcs Email only
Shanghai Y* Control ISO 14001, PED 4"–24"
Specialty: 4 lug style butterfly valve		 25,000 pcs Limited
Benchmark based on 2023 public data. Only select suppliers can offer true project-based customization (special alloys, actuator kits, 6 lug butterfly valve configurations).
Tailored Solutions & Custom Engineering Options

Modern process systems may demand modifications beyond the base 3 butterfly valve dimensions standard. Key customization and engineering options include:

  • Exotic Alloys: Nickel-aluminum bronze or duplex SS for seawater or chloride-rich environments.
  • Fire-Safe Seals: API607 certified, for oil & gas pipelines.
  • Smart Actuation: Electric & pneumatic actuators with Modbus/HART feedback.
  • Face-to-Face Customization: Compliant with EN558, ASME B16.10 for legacy systems or compact installations.
  • Valve Lock-Outs: OSHA-compliant locking handlegear for safety protocols.
Need tailored advice on 3 butterfly valve dimensions? Contact our engineering team for instant configuration guidance!
Application Case: Large Metallurgical Project (2023)

Project: Cooling circuit automation in Shandong Steel, China
Scope: 42 sets of 3 butterfly valve dimensions in high-chloride water loops
Solution: Valves specified in CF8M + PTFE seats + electric actuators. Advanced CNC precision cut seat seats ensured ISO5208 Class A tightness.
Outcome: Zero leakage after 18 months; remote commissioning via plant DCS; maintenance cost savings of 23% versus previous ball valves.

Real-world case verified by end-user data and DCS operations records. See industry validation: Valve Magazine / Spring 2023
FAQ: Technical FAQ for 3 Butterfly Valve Dimensions
Q1: What are the main material options for 3 butterfly valves?
A: Common materials include ductile iron (EN-GJS-450), cast stainless steel (CF8/CF8M), and carbon steel (WCB). Seat materials range from EPDM, NBR to PTFE depending on media compatibility and temperature resistance.
Q2: How are 3 butterfly valve dimensions standardized?
A: Standardization follows ISO 5752/EN558 for face-to-face, ISO 5211 for actuator mounting, and flange compatibility as per ANSI B16.5/EN1092.
Q3: What is the difference between 4 lug and 6 lug butterfly valves?
A: The number of lugs refers to flange bolt holes; 4-lug is typical for small, low-pressure lines, while 6-lug is used in specific regional or higher-load applications. 8-lug (standard for 3" valves) enables safe dead-end service.
Q4: Are these valves suitable for food/pharma lines?
A: Yes, with FDA/EC1935-compliant PTFE seats and polished stainless steel bodies, butterfly valves can meet hygiene and traceability requirements.
Q5: What's the typical delivery time for a custom 3” lug type butterfly valve?
A: Standard units: 5–10 working days; custom alloys/automation: 18–25 working days after approval drawing confirmation.
Q6: How is product quality assured?
A: 100% tested to ISO 5208 and API 598, with traceable serial numbers and factory quality certificates. Major suppliers offer full video inspection and batch documentation.
Q7: What warranty and technical support do suppliers provide?
A: Most 3 butterfly valve dimensions supplier companies offer 18–36 month warranty coverage, with 24/7 hotline and remote video technical support.
Delivery Timeline & Support Commitments
  • Delivery: Stock items in 7–14 days; custom-engineered solutions 18–28 days worldwide (EXW/FOB/CIF options).
  • Warranty: 24 months standard (parts & labor); extended programs for key accounts.
  • Technical Assistance: 7x24h engineering hotline, field commissioning, actuator setup tutorials.
  • Traceability: Every valve marked for full production, test, and QA tracking.
Ready to specify 3 butterfly valve dimensions? Our direct factory experts are standing by for your RFQ and design consultation!
References & Professional Literature

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