Precision Engineered
Concentric Lug Type Butterfly Valves

Defining the gold standard in industrial flow control. Our concentric lug type butterfly valves combine API 609 design rigor with superior sealing technology to ensure zero-leakage performance in the most demanding manufacturing environments worldwide.

12000+
Annual Output
165+
Countries Served
7 Days
Sample Lead Time
99.8%
On-Time Delivery

Industrial Grade Reliability
& Advanced Sealing Tech

Superior flow management for high-pressure and corrosive environments.

As a leader in the specialized equipment manufacturing sector, our concentric lug type butterfly valve series occupies a critical position in modern piping systems. These valves are engineered for dead-end service capability, meaning they can be installed at the end of a pipeline without requiring downstream piping, providing unmatched flexibility in system layout and maintenance.

The technical edge of our design lies in the concentric sealing geometry, which ensures a perfectly balanced compression between the disc and the seat. By adhering to API 609 and MSS SP-68 standards, we minimize torque requirements while maximizing the sealing longevity, significantly reducing the Total Cost of Ownership (TCO) for our industrial clients.

The Engineering
Foundation of Excellence

Three core pillars that drive the performance of our butterfly valve technology.

01

Material Metallurgy

Utilizing high-grade alloys to combat corrosion and wear in volatile environments.

  • WCB/CF8M Body: High strength carbon and stainless steel options.
  • S.S. 316 Seat: Superior chemical resistance for purity.
  • Hardened Stem: Reduced friction and zero deformation.
02

Dimensional Precision

Strict adherence to international standards for seamless integration.

  • ISO 5211: Standard top flange for effortless automation.
  • EN 1092-2: Perfect flange alignment for leak-free joints.
  • DIN 3202: Consistent face-to-face dimensions.
03

Rigorous Testing

Every valve undergoes extreme stress tests before shipping.

  • API 598 Inspection: Full hydrostatic and pneumatic testing.
  • Zero-Leakage Seal: Bubble-tight shut-off verification.
  • Torque Optimization: Cycle testing for operational ease.

Performance Metrics
& Market Analysis

Quantifying the superiority of our concentric lug designs over traditional wafers.

Material Distribution by Project

Competitiveness Radar Index

Technical Specifications
Detailed Dimensional Data

Precision measurements for concentric lug type butterfly valves across various sizes.

Size (DN)
Height (H)
Length (L)
PN 16 (T)
CL150 (J)
Bolt Hole (Φ)
DN 50
43 mm
300 mm
125 mm
18 mm
178 mm
DN 65
46 mm
318 mm
145 mm
18 mm
178 mm
DN 80
49 mm
350 mm
160 mm
18 mm
178 mm
DN 100
56 mm
452 mm
180 mm
18 mm
178 mm
DN 125
64 mm
479 mm
210 mm
18 mm
216 mm
DN 150
70 mm
512 mm
240 mm
23 mm
241.5 mm
DN 200
71 mm
636 mm
295 mm
23 mm
298.5 mm
DN 300
83 mm
797 mm
410 mm
27 mm
432 mm

Real-World
Impact

Demonstrated efficiency in diverse industrial applications.

PetroChem Global Ltd.

Hydrocarbon Processing

Replaced outdated wafer valves with concentric lug units to solve frequent leakages in high-pressure steam lines.

Leakage Reduction: 99.9% MTBF Increase: 40%

AquaPure Municipal

Water Treatment

Implemented CF8M stainless steel concentric valves to ensure potable water purity and prevent oxidation.

Zero Corrosion 100% Compliance

SteelForge Industrial

Cooling Systems

Deployed large-bore DN300 valves to manage massive flow rates in blast furnace cooling circuits.

Flow Capacity: +25% Pressure Drop: -15%

Pharmaceutix Labs

Sterile Fluid Control

Used ultra-smooth finish S.S. 316 concentric valves to prevent bacterial buildup in fluid transfer lines.

Hygiene Grade: High Sterile Seal: 100%

FoodFlow Logistics

Beverage Production

Implemented automated lug type valves for CIP (Clean-in-Place) systems to optimize cleaning cycles.

Cleaning Time: -20% Water Saving: 15%

MarineTech Shipyards

Ballast Water Management

Installed seawater-resistant concentric valves to handle high-salinity flow without pitting corrosion.

Salt Resistance: Max Cycle Life: +50%

Industry
Applications

Tailored solutions for demanding environments.

Oil & Gas Refineries

Critical isolation for crude oil transport and gas processing lines where zero leakage is mandatory.

Chemical Plants

Corrosion-resistant CF8M bodies ideal for transporting aggressive acids and alkaline solutions.

Pharmaceuticals

High-purity S.S. 316 constructions for sterile fluid management and FDA-compliant production lines.

HVAC Systems

Efficient flow regulation for large-scale chilled water and heating loops in commercial buildings.

Power Generation

Robust thermal management for turbine cooling and boiler feed water systems.

Marine Engineering

Seawater-grade valves for ballast and bilge systems, engineered to withstand extreme salinity.

Quality Assurance
& Export Standards

Full API 598 Certification

Every concentric lug type butterfly valve undergoes a rigorous testing regime including shell and seat leak tests to ensure absolute integrity under pressure.

Advanced Material Traceability

We provide Mill Test Reports (MTR) for all primary components, guaranteeing that the WCB and CF8M alloys meet global ASTM standards.

Precision CNC Machining

Our manufacturing process utilizes high-precision CNC centers to achieve tolerances within microns, ensuring a perfect seal every time.

Trust Verified

Our commitment to quality is recognized by the leading international regulatory bodies.

✓ ISO 9001:2015 ✓ CE Certified ✓ API 609 Compliant

Frequently Asked
Questions

Expert answers to common technical and commercial inquiries.

01

What are the primary advantages of a concentric lug type butterfly valve over a wafer type?

Unlike wafer valves, lug type valves feature threaded inserts that allow them to be bolted directly to the flange. This enables concentric lug type butterfly valve units to be used for end-of-line service, allowing piping to be disconnected from one side without disturbing the valve seal.

02

Which materials are best for corrosive chemical applications?

For highly corrosive environments, we recommend the CF8M stainless steel body and disc combined with an S.S. 316 seat. This configuration provides maximum resistance to oxidation and chemical pitting.

03

Can these valves be automated using actuators?

Yes, our valves are designed with ISO 5211 top flanges, making them fully compatible with a wide range of pneumatic, electric, and hydraulic actuators for seamless automation.

04

What is the maximum size available for the lug type series?

Our current standard production line supports sizes up to 16 inches (DN400), though custom larger bore solutions can be engineered upon request.

05

How do you ensure the seal remains tight under high temperature?

We utilize high-performance thermoplastic and elastomeric seat materials specifically rated for the operating temperature of your medium, ensuring thermal stability and zero leakage.

06

What certifications come with the valves for export?

All export units are shipped with a complete Quality Certificate, API 598 Test Report, and Material Mill Certificates, ensuring full compliance with international trade laws.

Optimize Your Flow with Concentric Lug Valves

Contact our engineering team today for a customized quote and technical consultation for your piping project.

Get a Quote