A butterfly valve is a type of quarter-turn valve that uses a disc or plate, known as a butterfly, to control the flow of fluid within a pipeline. The disc is positioned perpendicular to the flow in the closed position and rotates 90 degrees to allow full flow in the open position.
Double Offset Butterfly Valve Manufacturer in Mumbai, India
When compared to a concentric butterfly valve, a double-offset butterfly valve has two offsets.
We are leading Double Offset Butterfly Valve Manufacturer in Mumbai, India. The first offset is the shaft, which is not at the centre of the disc but slightly behind it. Because of this misalignment, the valve will have a continuous sealing surface on the disc.
The second offset is the shaft, which is not in the centre of the pipe but slightly to the right of it. When the valve is fully opened, this offset ensures that it does not come into contact with the seat (see illustration above). This configuration causes less friction in the seat than the concentric type butterfly valve, extending its life. In a typical application, this double-offset butterfly valve is only available in class 600.
End Connection: Flange (B16.5) / Lug Type / Wafer Type
Size: 15 NB - 600 NB
Pressure Rating: #150- #600 - PN 10 - PN 16
Temperature Range: -190° C to 350 ° C
MOC: Carbon Steel / Stainless Steel / Alloy
Seat: Soft Seat- Nitrile Rubber, EPDM, Viton / Metal Seat
Design Standard: EN 593 (BS 5155), API 609, MSS SP-67
Operation: Manual / Actuator / Gear
Face to Face: API 609 CAT A / MSS SP-67 (Narrow Body), ISO 5752 (Short)
Fire safe design: API 607
Testing: API 598 Rev 2009
Documents: BS/EN 10204-3.1 REV 2019
Have a question before you buy our products? Take a look at the FAQs below.
If you don’t find the answer you’re looking for, get in touch with us here.
What is a butterfly valve?
Are Butterfly Valves safe?
Butterfly Valves are one of the safest valves to use. It works very well in high temperature and high-pressure services, making it safe for all types of use. At Freture, all our valves are manufactured as per international standards. Are 100% leak-proof and emission free. Saves down-time and process media. Maintenance free. Easy to install and remove.
How Do Butterfly Valves Work?
When the disc is in the open position, it allows fluid to flow through the valve. When the disc is in the closed position, it blocks the flow of fluid. The disc is typically rotated by a handwheel or a pneumatic or electric actuator
Do I really need a Butterfly Valve for my factory?
If you are in one of the following industries, a Butterfly Valve will definitely help you improve the efficiency and safety.
- Chemical Manufacturing
- Oil & Gas Refineries
- Boiler / Reactor Manufacturing
- EPC Contractor company
- Local Traders
If you’re from another industry looking for more details about how you can benefit from using a Butterfly Valve, please get in touch with us here for further discussion.
How do I know which type of Butterfly Valve is ideal for me?
Why is Freture the best place to buy Butterfly Valves from?
Most of the time our clients are local hence we are easily accessible
Our products are manufactured & Tested as per international Std. & we offered only best quality product
We will keep stock of Std. Product for last minute urgency
We provide products only from reputed & highly reliable manufactured
We have an experienced technical team who will be able to understand client’s exact requirements & accordingly we will offer solutions
What are the advantages of Butterfly Valves?
There are three main types of butterfly valves:
- Wafer butterfly valves: These valves have a wafer-like body that fits between two flanges, allowing them to be installed in pipelines without additional support.
- Lug butterfly valves: Lug butterfly valves have threaded inserts on both sides of the valve body, enabling them to be bolted onto the pipeline.
- Double-flanged butterfly valves: These valves have flanges on both ends of the body, allowing them to be connected directly between pipe flanges.
Can Butterfly Valves be used in both liquid and gas applications?
Yes, Butterfly Valves can be used in both liquid and gas applications. The selection of materials and proper sizing of the valve should be based on the specific characteristics of the fluid or gas being controlled.
What maintenance is required for Butterfly valves?
Regular maintenance for Butterfly Valves includes inspection, lubrication, and periodic testing of the valve components. This helps ensure proper functioning, prevent leakage, and extend the valve's lifespan. Maintenance requirements may vary based on the specific valve design, materials used, and the operating conditions.
Industries where Butterfly Valve is Used
Oil & Gas Refineries
Boiler / Reactor Manufacturing
EPC Contractor company
Applications of Butterfly Valve
- Fluid services
- Slurry applications
- Liquids, steam, cryogenics, cooling water air, gases, fire-fighting, vacuum services
- Works week in high-pressure and high-temperature services