Your Professional Butterfly Valve Supplier
Tiansu (Tianjin) Valve Group Co., Ltd is a comprehensive, technology-based enterprise integrating valve research and development, production, sales, and after-sales service. The company primarily develops, manufactures, and sells various types of valves for natural gas, fully welded ball valves, carbon steel ball valves, HVAC-specific valves, fire protection valves, water supply and drainage valves, and water conservancy control valves, among other series of products.
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![Worm Gear Operated Flange Butterfly Valve]()
Worm Gear Operated Flange Butterfly ValveUtilizes a circular disc as the closing element. The center of rotation of the disc (i.e., the center of the valve stem) is located on the centerline of the valve body and the sealing surface section -
![Worm Gear Butterfly Valve]()
Worm Gear Butterfly ValveThe worm gear type butterfly valve uses a worm gear mechanism for torque amplification and precise control: manually rotating the handwheel drives the worm, which turns the worm gear at reduced -
![Lever Operated Butterfly Valve]()
Lever Operated Butterfly ValveThe wafer type hand lever operated butterfly valve is the conventional butterfly valve preferred for pipelines, featuring a simple structure, low flow resistance coefficient, nearly linear flow -
![Gear Operated Butterfly Valve]()
Gear Operated Butterfly ValveA gear butterfly valve is a common valve combining wafer connection and worm gear drive. Main components include body, disc, stem, and worm gear drive mechanism. The disc is circular, connected to -
![Stainless Steel Butterfly Valve]()
Stainless Steel Butterfly ValveA stainless steel wafer butterfly valve is made from stainless steel, uses wafer connection, and is hand-operated via a handle. It is widely used in fluid systems due to its compact design, easy
Why Choose Us
Production Market
Our products are centered in Tianjin and radiate to all parts of China. They are exported to multiple countries and regions, forming a challenging global marketing network.
Quality System
The company consistently implements the ISO9001 quality management system strictly, and implements quality control throughout the full process from market research, product design and development, raw material purchase, processing and assembly, factory inspection, to after-sales service.
Excellent Quality, Wholehearted Service
Our Based on customers' personalized and high-quality needs, we continuously improve and enrich our product offerings to provide customers with more comprehensive and high-quality services.
Core Values
We persistent pursuit of goals, strong team spirit, strong execution ability to keep one's word, and a full spirit of service.
Advantages of Butterfly Valve
Lightweight and Compact
Butterfly valves are great for several applications because they are very lightweight and provide reasonable flow control in a compact design. You will generally want to use a metal-seated valve for more extreme fluid processing, while a soft-seated butterfly valve is best for applications with low pressures and temperatures. The butterfly disc takes up little space but offers enough strength for most pump systems.
Simple and Cost Effective
Butterfly valves are very simple in design and have minimal maintenance requirements. They are easy to install and operate. Plus, they are typically much less expensive than a ball valve of the same size. They do not require much torque to operate effectively and can be automated for energy-efficient operation.
Quick and Efficient
The 90-degree turning radius allows for quick sealing upon actuation, which provides more accurate flow control with minimal effort to turn the valve on and off. Different butterfly valves are to consider, including zero-offset, double-offset, and triple-offset. The pressure will usually determine which type you need. The higher the offset, the more pressure the valve can handle.
Pressure Control
In addition to precision flow control, butterfly valves are excellent for pressure control. They experience minimal pressure drop during operation before the fluids recover energy quickly after leaving the valve. This keeps the pump system running efficiently with consistent fluid pressures.
Types of Butterfly Valve
Concentric Butterfly Valve
This type of butterfly valve is also known as the “Zero Offset Butterfly Valve”. In this butterfly valve type, the disc and shaft are placed centered on the valve seat. As a result, the disc stays constantly in contact with the seat, which reduces valve seat life over time.
Double Eccentric Butterfly Valve
This butterfly valve type is also called a Double Offset Butterfly Valve or High-Performance Butterfly Valve. In this valve, there are two offsets from the center. First, the axis of the shaft is eccentric to the backside of the disc and behind the centerline of the sealing point. Second, the shaft axis is also not positioned at the center of the valve or pipe.
Triple Eccentric Butterfly Valve
This valve is also known as the Triple Offset Butterfly Valve. The first two offsets are similar to double offset butterfly valves, while the third offset is created through a geometrically designed seat surface.
Wafer Type Butterfly Valve
This type of butterfly valve is installed between two flanged-end pipes. As shown below, the wafer type butterfly valve fits with the help of studs that pass through pipe flanges and tighten the valve between two flanges.
Lug Type Butterfly Valve
The lug type butterfly valve is also connected between flange-ended pipelines. There are threaded inserts on both sides of the valve body. Both sides of the flange-ended pipe connect to these threaded inserts using two sets of bolts without nuts.
Components of Butterfly Valve
Valve Body
The valve body fits between the pipe flanges - the most common end connection types being flanged, double lug, and wafer types.
01
Disc
Attached to the valve body is the disc that functions as a gate that stops or throttles fluid flow; it can be considered equivalent to a gate in a gate valve, or a ball in a ball valve. The disc is typically bored to receive the stem, or shaft.
02
Seat
Lining the internal valve body is a strong elastomer or metal anti-leak seal that secures the disc in place in the closed position in order to achieve complete shutoff.
03
Stem
The valve shaft, often also referred to as the stem, is the component that connects the disc to the actuation mechanism and transmits the torque through itself.
04
Seals
Seals are present at multiple interfaces within the valve to either ensure a tight seal during operation or to isolate the process media from the valve’s internal components for a more flexible and cost-efficient design.
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Specifications
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Size |
2″ to 72″ |
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Pressure Rating |
Class 150 to 1500 |
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Temperature Rating |
-50°C to +650°C |
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Body Material |
Cast iron, ductile iron, carbon steel, stainless steel, etc. |
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Disc Material |
Stainless steel, aluminium bronze, duplex steel, etc. |
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Seat Material |
EPDM, Buna-N, Viton, PTFE, etc. |
Working principle of Butterfly Valve
The construction of a butterfly valve is relatively simple, with the rotation of the valve disc controlling the fluid flow. In the closed position, the disc blocks the valve bore while in the open position, the disc is oriented perpendicular to the flow direction to allow flow. Butterfly valves generally provide bi-directional flow and shutoff capability. However, they are not full-bore, which renders them unsuitable for pigging or swabbing.
The body material is ductile iron with an epoxy powder coat on both internal and external surfaces. The valves are typically operated by handwheels, gears, or actuators, or a combination thereof, according to the specific application requirement and technical specifications.
Common Uses and Applications of Butterfly Valves
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Industry |
Application/Use Case |
Why Butterfly Valves Are Used |
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Oil and gas |
Controlling flow in pipelines and refineries |
They can withstand high pressure, offer quick shutoff and manage large volumes effectively |
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Chemical processing |
Managing corrosive or hazardous materials in chemical plants |
They resist corrosion and provide reliable fluid regulation |
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Water treatment |
Regulating flow in water distribution and sewage treatment plants |
They are suitable for large-scale operations, can prevent backflow and regulate flow efficiently |
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HVAC |
Regulating airflow and fluid distribution in heating, ventilation and air conditioning systems |
They ensure rapid operation and maintain stable system performance |
FAQ
Tiansu (Tianjin) Valve Group Co., Ltd. is one of the most professional butterfly valve manufacturers and suppliers in China, also supports customized service. Welcome to wholesale CE approved butterfly valve made in China here and get free sample from our factory. For price consultation, contact us.
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