Butterfly Valve

This SS316 butterfly valve adopts a triple eccentric structure, which has a tighter sealing function as it closes, and its sealing performance is reliable.

The eccentric butterfly valve sealing material is made of stainless steel + asbestos board with long service life.

The stainless steel + asbestos plate sealing ring can be located on the valve body or on the butterfly plate. It can be applied to media with different characteristics for users to choose.

The high temperature butterfly valve used outside bearing, this design can avoid the bearing lock due to high temperature and the valve cannot be opened normally.

1. Small and light, easy to disassemble and repair, and can be installed in any position.
2. The structure is simple and compact, the operation torque is small, and the 90 ° rotary opening is quick.
3. The flow characteristics tend to be straight line and the regulation performance is good.
4. The connection between the butterfly plate and the valve stem adopts the structure without pin, which overcomes the possible internal leakage point.
5. The outer circle of butterfly plate adopts spherical shape, which improves the sealing performance and prolongs the service life of the valve, and keeps zero leakage after more than 50000 times of opening and closing under pressure.
6. The sealing element can be replaced, and the sealing is reliable to achieve bidirectional sealing.
7. Butterfly plate can be sprayed with coating according to user's requirements, such as nylon or PTFE.
8. The valve can be designed as flange connection and clamp connection

The structure is simple, the flow resistance coefficient is small, the flow characteristics tend to be straight line, and no debris will be retained. It has the advantages of light weight, convenient installation and small driving torque. This kind of valve can be used not only to cut off the medium, but also to adjust the flow rate of the medium. According to the user's requirements, the driving device can be manual, electric, pneumatic and so on. Parts of different materials and sealing rings of different materials can adapt to different conditions

PTFE Seat Butterfly Valve salt-resisting,soda-resisting,weakacid-risisting,it's adaptability is wide
This butterfly valve small size and light weight easy instllation and mintenance
The medium of the Ptfe Butterfly Valve is fresh water,sea water,all kinds of gas,oil salt and weak acid

▶▷A sealing ring, ensuringtightness in the seat, forms a sandwich of stainlesssteel sheets layered witha soft filler of graphite. This composition is able to withstand high temperatures and ensures excellent resilience of the sealing element even during significant fluctuations of medium temperature and pressure.
▶▷The packing system consists of a series of soft graphite sealing rings preventing leakage around the shaft. Graphite is a material which perfectly seals and resists high temperatures. Optimization of the ratio between tightness around the shaft and the actuating torque can be easily achieved by tightening or loosening the nuts holding the packing flange.
▶▷Spirally wound stainless steel band with a soft graphite filler guarantees a perfect seal even with large temperature and pressure fluctuations inside the pipe.

Manual Dn150 Butterfly Valve use the ductile iron for body tensile strength σb (MPa): ≥450 Hardness: 160～210HB and good casting performance, low cost.

For this butterfly valve the applicable temperature range is wide, the minimum operating temperature is -40～-60℃, and it can be used at 130℃ for a long time

The butterfly valve size will be from 2"-40" and pressure would be PN10/PN16/150LB

Epdm Seat Butterfly Valve use ductile iron material and EPDM for sealing materials for the temperature -10°C to 120°C
For the butterfly valve will test before left the factory,and Shell test : 1.5 times rated pressure,seal test 1.1 times rate
This butterfly valve usd pneumatic actuator Fast opening and closing speed and Easy maintenance and good adaptability to the environment. we can choose pneumatic actuator according to customer's require

1.Electric butterfly valve body only needs a small installation space, and the task principle is easy and reliable

2.Motorized Butterfly Valve power supply：AC220、380V/DC24、220V

3.Double Eccentric Butterfly Valve is more resistant to high pressure, has a longer life and good stability. Compared with other valves, the larger the diameter, the lighter the material and the lower the cost

Rubber lined butterfly valve small operating torque, convenient operation, labor-saving and smart.
6 Inch Butterfly Valve can be installed in any position and is easy to maintain.
The seal of the butterfly valve can be replaced, and the sealing performance is reliable to achieve two-way sealing with zero leakage.