Double Eccentric Design Offset Disc Double Flange Butterfly Valve

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Double Eccentric Design Offset Disc Double Flange Butterfly Valve

Price 6000 INR/ Unit

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MOQ : 1 Number

Double Eccentric Design Offset Disc Double Flange Butterfly Valve Specification

Structure
Double Flange, Double Eccentric Design

Pressure
10kg/ cm to 25kg/ cm

Caliber
Standard

Connection
Double Flanged

Channels
One Way

Material
Carbon Steel / Cast Iron / Stainless Steel

Power
Manual / Electric / Pneumatic

Media
Water, Oil, Gas, Steam

Temperature of Media
-10C to 120C

Port Size
DN100 - DN1200

Flange
PN10, PN16, PN25

Finish
Epoxy Painted / Powder Coated

Application
Water Supply, Wastewater, Industrial Pipelines

Coating Thickness
250m

Body Type
Double Eccentric Offset

Seal Type
Bubble Tight, Zero Leakage

Testing
Hydrostatic and Air Tightness Test

Disc Material
Ductile Iron / Stainless Steel

Seat Material
EPDM / NBR / PTFE

Design Feature
Corrosion Resistance, Long Service Life

Gasket Material
Rubber / PTFE

Operation Method
Handwheel, Gear Operated, Electric Actuator, Pneumatic Actuator

Flow Characteristic
Bidirectional with Low Torque

Mounting
Horizontal or Vertical

Face to Face
EN558 Series 13/14

End Connection
Double Flanged

About Double Eccentric Design Offset Disc Double Flange Butterfly Valve

The main features of the Double Eccentric Butterfly valves are that it has a double offset shaft position

The user has an option for a polymer or metal seat. The seat is easily replaceable, and the end connections are standardized.

Size Range: 2 inches to 48 inches (65mm to 1200mm)

Standard:

Design and Manufacturing: API 609 / BS 5155 / BSEN 593 / IS 13095 / AWWA C - 504

Valve Face-to-Face Dimensions: API 609 (Short Pattern) / BS 5155 (Short Pattern)

: / IS 13095 (Short Pattern) / AWWA C - 504 (Short Pattern)

Flange Standard Conformity: ASME B 16.5 Class 150 (Upto 24): ASME B 16.47 Series A Class 150 (Above 26 to 48): AWWA C - 207, IS 1538, BS 5404, IS 6392

Inspection And Testing: API 598 / BS 6755 / AWWA C - 504,

Pressure Temperature Rating: ASME B16.34

Top Flange Dimensions: Bolt Hole ISO 5211

Stem Dimensions: Square Drive to ISO 5211

Leakage Class: Class VI as par ANSI B 16, 16.104

Double Eccentric Engineering for Enhanced Performance

This valve's double eccentric offset design significantly reduces wear on the sealing surface, providing a bubble-tight seal with minimal torque. Maintenance cycles are extended due to the reduced friction, resulting in a valve that is both cost-effective and long-lasting. The robust construction and available coating options make it ideally suited to demanding environments where corrosion resistance is crucial.

Versatile Operation and Easy Integration

With options for handwheel, gear operator, electric actuator, and pneumatic actuator, this valve accommodates a range of automation and manual requirements. Its double flange structure and standardized EN558 Series 13/14 face-to-face dimensions make installation and replacement straightforward in a variety of pipeline systems, whether mounted horizontally or vertically.

FAQ's of Double Eccentric Design Offset Disc Double Flange Butterfly Valve:

Q: How does the double eccentric offset design benefit the valve's performance?

A: The double eccentric offset design minimizes contact between the disc and seat during operation, which reduces friction and wear, ensuring longer service life, easier operation with lower torque, and superior bubble-tight sealing.

Q: What applications is this butterfly valve suitable for?

A: This valve is ideal for water supply, wastewater management, and various industrial pipelines. Its robust construction allows it to handle media such as water, oil, gas, and steam at pressures from 10 to 25kg/cm2 and temperatures between -10C and 120C.

Q: What materials are available for the disc and seat, and how are they chosen?

A: The disc can be made from ductile iron or stainless steel, selected based on the fluid's corrosiveness and required strength. Seats are available in EPDM, NBR, or PTFE to ensure compatibility with different media, offering flexibility for use in diverse chemical environments.

Q: How is the valve operated, and can it be automated?

A: Operation methods include handwheel, gear operator, electric, or pneumatic actuators. It can be easily automated for process control or operated manually for smaller-scale installations, enabling versatile application across industries.

Q: What standards does the valve meet for dimensions and pressure ratings?

A: The valve conforms to EN558 Series 13/14 face-to-face dimensions and is available with double flanged connections rated for PN10, PN16, and PN25, supporting port sizes from DN100 to DN1200.

Q: What ensures the valve's corrosion resistance and long service life?

A: The valve body and components are coated with at least 250m of epoxy paint or powder coating, providing superior protection against corrosive environments. Combined with highly durable materials and design features, this guarantees extended operational life and minimal maintenance.

Q: How is quality ensured during the manufacturing process?

A: Each valve undergoes rigorous hydrostatic and air tightness testing to verify integrity and zero leakage, ensuring all valves delivered are compliant with industry standards and suitable for critical applications.

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