FQ647MF Pneumatic Coal Powder Injection Special Ball Valve

The FQ647MF pneumatic coal powder injection special ball valve is used for blast furnace coal powder injection, dust and solid powder pipeline systems, air pipelines and injection routes, and other working conditions. As an ideal opening and closing equipment for controlling pipeline systems containing dust, solid powders, and particulate liquids. Pneumatic rack or fork, flange connection, fixed ball, valve body made of carbon steel or stainless steel material, internal wear-resistant polymer composite material PPL or alloy valve seat, with a service temperature of -196 ℃+550 ℃ selected according to the material, suitable for various media such as coal ash, coal powder, dust, solid powder, and liquid containing particles, with a pressure level of 0.25~1.6MPa. Suitable for blast furnace coal powder injection systems, air pipelines, and injection systems.
Application scope:
Commonly used in the extraction, refining, processing and pipeline transportation systems of oil, natural gas, coal and ore, to cut off or connect media such as blast furnace coal powder injection, dust and solid powder pipeline systems, air pipelines and injection routes.
Product advantages:

1. The sealing ring is made of special materials, which have the characteristics of high temperature resistance, wear resistance, and long service life.
2. The valve seat is equipped with an automatic wear compensation device, which ensures the sealing performance of the ball valve more reliably.
3. Soft sealing structure, hard sealing structure, fireproof valve seat structure and other structural designs can be selected for different working conditions.
4. A grease injection auxiliary sealing structure can be set up, and grease injection valves can be added to the valve seat and valve stem for temporary sealing in emergency situations.
5. The pneumatic operation switch is stable, convenient and fast.

Product Disadvantages:

1. The torque generated by the valve ball and seat during use is relatively high, making it difficult to open and close.
2. Due to the large size of the design and manufacturing, the installation and usage space should be carefully considered.
3. Belonging to a specialized type of valve, it is specifically used in coal injection systems or gas-solid conveying systems.
4. After installing pneumatic actuators, the installation space increases and installation is limited.

Execution standards:
Design and manufacturing: GB/T12237-2007
Structural length: GB12221-2005
Supply requirements: GB/T12252-2005
Pressure test: GB/T13927-2008
Pressure testing and inspection: GB/T13927-1992
Flange standard: GB9113/JB79

Performance parameter:

Main parts material

External structural connection size:

Precautions for installation and use of ball valves:

1. During installation and construction, care must be taken to avoid hitting the valve.
2. Before installation, the ball valve should be inspected to verify its specifications and model, and to identify any damage, especially for the valve stem. Rotate it a few more times to see if it is skewed, as the valve stem is most likely to be knocked off during transportation. Also, remove any debris inside the valve.
3. When lifting a ball valve, the rope should not be tied to the handwheel or valve stem to avoid damaging these components. It should be tied to the valve body.
4. The pipeline connected to the ball valve must be cleaned thoroughly. Compressed air can be used to blow away iron oxide shavings, mud and sand, welding slag, and other debris. These debris not only easily scratch the sealing surface of the ball valve, but also block the small valve with large particles (such as welding slag), causing it to fail.
5. Leave a position for the valve handle to rotate during installation.
6. Ball valves cannot be used for throttling.
7. Ball valves with transmission mechanisms should be installed upright.