The main performance of D341W Worm Gear Ventilation Butterfly ValveThe D341W Worm Gear Ventilation B

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Applicable medium: air, dust and flue gas.

Power supply (voltage): three-phase 380V, AC, air source air pressure:

Leakage: <

D341W worm gear ventilation butterfly valve is a non-enclosed butterfly valve, which is used on the pipeline with a medium temperature of 300 nominal pressure, and is used to communicate, open and close or adjust the flow rate of the medium. This valve has a unique structure, using high-quality steel plate welding Huaiyou, with small size, light weight, large circulation section, flexible opening and closing, on-site and remote control, widely used in building materials, metallurgy, mining, electric power and other industries in the ventilation, environmental protection engineering of dust-containing cold air or hot air gas pipeline, as a gas medium to regulate the flow or cut off the pipe lead disturbance Huaidao control device.

The design of the ventilation butterfly valve is novel and reasonable, the structure is unique, the weight is light, and the opening and closing are fast. The butterfly valve has a small operating torque, easy to operate, and is labor-saving and dexterous. Suitable materials are used to meet the needs of low, medium and high medium temperatures and corrosive media.

There are no connecting rods, bolts, etc., reliable work, long service life, and are not affected by the flow direction of the medium.

The ventilation butterfly valve is processed into a sealing ring with the same material as the valve body, and its applicable temperature depends on the material selection of the valve body, and the nominal pressure is generally suitable for industrial, metallurgical, environmental protection and other pipelines for ventilation and regulation of medium flow.

Standard specification: design and manufacturing standard: GB T 12238-1989;JB T8692-1998 Structural length standard: GB T 12221-2005 Connecting flange standard:

GB T Pressure and Temperature Grade: GB T 12224-2005 Test and Inspection Standard: GB T 13927-2008

The soft seal butterfly valve is suitable for regulating the flow and intercepting medium on the water supply and drainage and gas pipelines of food, medicine, chemical industry, petroleum, electric power, light textile, orange spring papermaking and so on with a temperature of 120 and nominal pressure. Its main features are:

1. The design is novel and reasonable, the structure of the round bucket is unique, the weight is light, and the opening and closing are fast.

2. The operating torque is small, and the operator is convenient, labor-saving and dexterous.

3. It can be installed and maintained in any position.

4. The seals can be replaced, and the sealing performance is reliable to achieve zero leakage of two-way sealing.

5. The sealing material is resistant to aging, corrosion and has a long service life. Design standard: GB T12238-1989

Flange connection size: GB; gb/;JB78 structure length: GB 12221-1989

Pressure test: GB T13927-1992; jb/t9092-1999<>

(1) Center seal butterfly valve.

2) Single eccentric sealed coal valve.

3) Double eccentric sealed butterfly valve.

4) Triple eccentric seal stomping valve (1) Soft seal butterfly valve.

1) The sealing pair is composed of non-metallic soft materials to non-metallic soft materials. 2) The sealing pair is composed of metal hard material to non-metal soft material. (2) Metal hard seal butterfly valve. The sealing pair is composed of a hard metal material to a hard metal material. (1) Forced sealing butterfly valve.

1) Resilient sealed butterfly valve. The sealing specific pressure is generated by the elasticity of the valve seat or valve plate when the valve is closed, and the valve seat or valve plate is 2) plus torque to seal the butterfly valve. The specific pressure of the seal is generated by the torque applied to the valve shaft (2) Pressure seal butterfly valve.

The sealing specific pressure is generated by the pressure of the elastic sealing element on the valve seat or valve plate. The sealing specific pressure is automatically generated by the pressure of the medium. (1) Vacuum butterfly valve.

Butterfly valves with working pressures lower than those of the standard stack atmospheric calendar.

2) Low-pressure butterfly valve. Nominal pressure PN<1 6MPa butterfly valve.

3) Medium pressure butterfly valve. The nominal pressure pn is 2 5--6 4MPa butterfly valve.

4) High pressure disc valve. Butterfly valve with nominal pressure pn.

5) Ultra-high pressure butterfly valve. Butterfly valve with nominal pressure PN>100MPa. (1) High temperature butterfly valve. T>450 C butterfly valve.

2) Medium temperature disc valve. 120 C-100 (3) lug butterfly valve.

4) Welded butterfly valve.

It is characterized in that: the valve seat sealing ring is made up of stainless steel sheets with multiple opening layers on both sides of the soft T-shaped sealing ring. The sealing surface of the valve plate and the valve seat is an oblique cone structure, and the temperature-resistant and corrosion-resistant alloy materials are surfacing on the surface of the oblique cone of the valve plate; A structure in which the spring fixed between the adjusting ring pressure plate and the adjusting bolt on the pressure plate are assembled together.

This structure effectively compensates for the tolerance zone between the shaft sleeve and the valve body and the elastic deformation of the valve stem under the medium pressure, and solves the sealing problem of the valve in the process of two-way interchangeable media transportation. The sealing ring is composed of multi-layer stainless steel sheets on both sides of the soft T-type, which has the dual advantages of metal hard sealing and soft sealing, and has zero leakage sealing performance under low and high temperature conditions. The test proves that when the tank is in the positive flow state (the medium flow direction is the same as the rotation direction of the butterfly plate), the pressure of the sealing surface is generated by the torque of the transmission device and the effect of the medium pressure on the valve plate.

When the pressure of the forward medium increases, the tighter the squeezing of the oblique cone surface of the valve plate and the sealing surface of the valve seat, the better the sealing effect. When in the reverse flow state, the seal between the disc and the seat is pressed against the seat by the torque of the drive device. With the increase of the pressure of the reverse medium, when the unit positive pressure between the valve plate and the valve seat is less than the medium pressure, the deformation energy stored by the spring of the adjusting ring after load compensates for the tight pressure of the valve plate and the sealing surface of the valve seat to play an automatic compensation role.

Therefore, the utility model discloses is not like the prior art, a soft and hard multi-layer sealing ring is installed on the valve plate, but is directly installed on the Wutan valve body, and the adjusting ring is very ideal two-way hard sealing mode is added in the middle of the pressing plate and the valve seat. It will replace gate valves and ball valves.

D341X worm gear flange soft seal butterfly valve is suitable for regulating the flow and intercepting medium on the water supply and drainage and gas pipelines of food, medicine, chemical industry, petroleum, electric power, textile, papermaking and so on with a temperature of 120 °C and nominal pressure.

Fujian Biaoguang Valve D341X Worm Gear Flange Soft Seal Butterfly Valve Features 1, D341X Worm Gear Flange Soft Seal Butterfly Valve has novel and reasonable design, unique structure, light weight, and fast opening and closing.

2. The operating torque is small, the operation is convenient, and the labor is saved and dexterous.

3. It can be installed and maintained in any position.

4. The seals can be replaced, and the sealing performance is reliable to achieve zero leakage of two-way sealing.

5. The sealing material is resistant to aging, corrosion and has a long service life.