Off Set Disc Double Flange Butter Fly Valve

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Off Set Disc Double Flange Butter Fly Valve Specification

Connection
Double Flanged

Valve Type
Off Set Disc Double Flange Butterfly Valve

Material
Ductile Iron / Stainless Steel

Power Source
Manual / Electric / Pneumatic

Pressure
PN10, PN16, PN25

Media
Water, Oil, Gas, Air

Working Temperature
-10C to 120C

Port Size
DN 100 to DN 2400

Shape
Circular

Face to Face
EN 558 Series 13 / 14

Disc Material
Stainless Steel / Ductile Iron

Operation Type
Gear Operated / Lever Operated

Seat Type
Replaceable Rubber / Metal

Application
Water Treatment, HVAC, Fire Fighting, Oil & Gas

Design Standard
BS EN 593 / API 609

Body Coating
Epoxy Powder Coated

Flange Drilling
EN 1092-2

Flow Direction
Bi-Directional

Testing Standard
EN 12266

Off Set Disc Double Flange Butter Fly Valve Trade Information

Payment Terms
Cheque

Packaging Details
As per requirement

Main Domestic Market
All India

Certifications
An ISO 9001 Certified Company

About Off Set Disc Double Flange Butter Fly Valve

We have established ourselves as a trusted name in the industry in offering a quality assured assortment of Off Set Disc Double Flange Butter Fly Valve. These valves are manufactured from high grade basic material under the supervision of highly experienced professionals in accordance with the defined industry norms. These valves are widely demanded across the industry for their dimensional accuracy and flawless finishing. One can avail these valves at nominal market price.

Features:

Excellent service life
Sturdy construction
Rust proof

Specification :

Construction Type	Double Eccentric Disc Design
Body	A216WCB/A351 CF8/A351 CF8M / D.I. / Etc
Disc	A216WCB/A351 CF8/A351 CF8M / D.I. / Etc
Seat	PTFE / R PTFE / NBR / EPDM / Viton
Shaft	AISI 410 / AISI 304 / AISI 316 etc \|
Pressure Rating	150#/PN 10/PN 16/PN25
End Connection	Double Flange Type
Operating Temp.	NBR Seat - 0 C to 90 C / EPDM Seat - -10 C to 120 C / Viton Seat 0 C to 220 C / PTFE Seat - -25 C to 180 C / RPTFE Seat - -25 C to 250 C
Operating	Lever Operated / Manual Worm Gear Actuator / Pneumatic Actuator / Electrical Actuator

Advanced Bi-Directional Flow

This butterfly valve supports bi-directional flow, making it versatile for complex piping systems. The offset design ensures reduced torque, which lowers wear on the seals and extends service life. Its dual-flange construction strengthens installation stability, supporting high pressures and large port sizes (DN 100 to DN 2400).

Superior Build & Protection

Engineered from stainless steel or ductile iron and finished with an epoxy powder coating, this valve excels in both corrosion resistance and durability. Its replaceable seat, available in rubber or metal, allows easy maintenance, ensuring continued reliability even in tough environments such as water treatment plants or oil and gas facilities.

FAQs of Off Set Disc Double Flange Butter Fly Valve:

Q: How is the Off Set Disc Double Flange Butterfly Valve operated?

A: This valve offers flexible operation options including hand lever, gear operator, as well as electric or pneumatic actuators. This allows adaptation to various automation and manual control needs in different setups.

Q: What are the main benefits of the double flange and off set disc design?

A: The double flange provides secure installation and superior sealing, while the off set disc reduces seat wear and required torque, resulting in longer lifespan and reliable, leak-proof operation.

Q: When should I choose a rubber seat versus a metal seat for this valve?

A: A rubber seat is optimal for water, air, and non-corrosive media, offering tight sealing and easier replacement. A metal seat is preferable for higher temperatures, abrasive, or corrosive applications, providing enhanced durability.

Q: Where can this butterfly valve be applied?

A: This valve is suitable for use in water treatment, HVAC systems, fire protection, and oil & gas pipelines. Its versatile design and robust materials allow installation in both industrial and municipal settings.

Q: What standards does the valve conform to in terms of design, testing, and drilling?

A: It is designed and tested according to BS EN 593 and API 609 for design, EN 12266 for leak testing, and EN 1092-2 for flange drilling, ensuring compatibility with international piping systems.

Q: How do I select the appropriate valve size and pressure rating?

A: Valve sizing (from DN 100 to DN 2400) and pressure classes (PN10, PN16, PN25) should be chosen based on your systems flow requirements, operating pressure, and piping standards. Consult with your supplier or manufacturer for expert sizing assistance.

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