High Performance Double Eccentric Butterfly Valve

Description
Technical
Standard
Q&A

DESCRIPTION

Advanced Double Eccentric Design for Reliable Performance

Our High Performance Double Eccentric Butterfly Valve adopts an advanced double offset design that improves sealing reliability and operational efficiency.

The disc and shaft are connected through a precision key and keyway system. Two set screws securely fix the key position, preventing movement caused by fluid vibration and operating forces.

For large-size valves, the disc is reinforced with stainless steel drive dowels combined with the key and keyway structure. This ensures stable operation even under demanding working conditions.

Durable Metal Seated Design

The valve features a robust metal seated structure designed for harsh industrial environments.

The integral seat incorporates a ductile iron seat that is machined and coated with epoxy for enhanced corrosion resistance. A replaceable stainless steel seat ring with an O-ring sealing system prevents leakage behind the seat area.

This metal seated butterfly valve design provides:

Excellent sealing performance
High temperature resistance
Long operating life
Reduced maintenance requirements

The high-quality elastomer sealing material also minimizes closing torque while maintaining reliable sealing performance.

TECHNICAL SPECS

Size DN50-DN2000

Rating 150LB-900LB

Material Cast iron, ductile iron, WCB, LCB, LCC, WC5, WC6, WC9, CF8, CF8M, CF3, CF3M, B148, UB6, CN7M, CK20, etc

Connection Wafer type, lug type, flange

Operate Handwheel, gearbox, pneumatic

Supply ability 10000 piece/pieces per month

Port Wenzhou/shanghai

Payment terms L/C, D/A, D/P, T/T

Delivery time 7-10 Working day

Key Benefits of High Performance Double Eccentric Butterfly Valve

The High Performance Double Eccentric Butterfly Valve provides multiple advantages compared with traditional valve solutions.

1. Combined Shut-Off and Control Function

This valve works as both a shut-off valve and a control valve, reducing the need for separate equipment. Its compact design requires less installation space compared with similar-size ball valves.

2. Excellent Performance in Difficult Media

For applications involving crystallization, coking, or challenging process media, the double eccentric butterfly valve provides better adaptability, operational reliability, and service life.

3. Low Operating Torque

The optimized sealing design reduces compression between the disc and seat, resulting in lower operating torque and improved energy efficiency.

4. Long Service Life and Low Maintenance

The durable construction, corrosion-resistant materials, and reliable sealing system reduce maintenance frequency and lifecycle costs.

Main Features

This valve includes the following features:

Double eccentric structure
Metal-to-metal seat design
High temperature and high pressure resistance
Corrosion-resistant construction
Flow adjustment and shut-off functions
Fire-safe design
Bi-directional sealing capability
Easy installation and maintenance
ISO 5211 top flange actuator mounting option
Compact structure and lightweight design
Long service life with low maintenance costs

Applications

This valve is suitable for various industrial applications, including:

Oil and gas processing
Chemical industries
Power generation
Water treatment
Petrochemical systems
High-temperature process pipelines
Industrial fluid control systems

Its reliable sealing performance makes it an ideal choice for applications requiring a high pressure butterfly valve or high temperature butterfly valve solution.

Design Standards and Specifications

Design and Manufacture:

API 609
MSS SP-67

Pressure Temperature Rating:

ASME B16.34

Face-to-Face Dimensions:

ASME B16.10

End Connections:

2″–24″: ASME B16.5
26″–42″: ASME B16.47

Butt Weld End Connection:

ASME B16.25

Testing and Inspection:

API 598
ISO 5208

"</p

Standard

Why Choose Our High Performance Double Eccentric Butterfly Valve?

With advanced double eccentric technology, reliable metal seating, and excellent operating performance, this valve provides a cost-effective solution for demanding industrial applications.

It combines durability, efficiency, and low maintenance requirements, making it a preferred choice for engineers and operators looking for a dependable double offset butterfly valve solution.

Q&A

Can we order goods from you directly?

Yes, we look forward to receiving your order. However, please note our minimum purchase quantity. If you require smaller quantities we will be happy to arrange an individual delivery. We would be delighted to assist you.

Can I get a discount?

This depends on the specific situation, you can call directly to consult.

Inquire with us directly