Q647FM pneumatic ash discharge ball valve
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I. Introduction:
Pneumatic ash discharge ball valves are suitable for long-distance pipelines and general industrial pipelines. Special considerations have been made in their design regarding strength, safety, and resistance to harsh environments, making them applicable to various corrosive and non-corrosive media. During operation, the force generated by the fluid pressure upstream of the valve on the sphere is fully transmitted to the bearings, preventing the sphere from moving toward the valve seat. This avoids excessive pressure on the valve seat, resulting in low torque, minimal valve seat deformation, stable sealing performance, and a long service life for all fixed ball valves. Pneumatic ball valves are suitable for high-pressure, large-diameter pipeline applications. The advanced spring-preloaded valve seat assembly features a self-tightening design to achieve upstream sealing. Each valve is equipped with two valve seats, enabling bidirectional sealing in both directions, so there is no flow direction restriction during installation. This valve is available in two body structures: two-piece and three-piece. The middle flange is connected by bolts, and the seal is made of reinforced PTFE embedded in a stainless steel ring. A spring is provided at the rear of the steel ring to ensure the valve seat closely adheres to the sphere and maintains sealing. Both the upper and lower valve stems are equipped with PTFE bearings to reduce friction and enable easy operation. An adjustment piece is installed at the bottom of the small shaft to ensure the contact position between the sphere and the sealing ring. The full-bore structure of the pneumatic valve ensures that the valve's flow diameter matches the inner diameter of the pipeline, facilitating pipeline cleaning.
II. Product Features:
1. The manual operating part can use a steel plate-pressed handle or a stainless steel cast handle. The handle is equipped with a limiting structure to set limits at the open and closed positions of the valve. When the valve is used in key equipment, the limiting block is provided with a lock hole to lock the open/closed position and prevent misoperation. The handle is clearly marked with "open" and "close".
2. The valve stem is integrally forged from A182F (1Cr13) and undergoes tempering treatment, with a hardness reaching HB220–250. The valve stem is connected to the handle via a flat key, spline, or square wedge, offering excellent versatility and convenient disassembly and assembly. The valve stem is designed with a blowout-proof structure.
3. The valve packing is made of braided flexible graphite sealing rings or PTFE sealing rings, ensuring reliable sealing of the valve stem under proper lubrication.
4. As required, the ball valve can be designed with an anti-static structure. Conductive springs are installed between the sphere and the valve stem, and between the valve stem and the valve body, to prevent static sparks from igniting flammable substances and ensure system safety.
5. The sealing pairs have diverse forms. Soft sealing, hard sealing, fire-resistant valve seats, and other structures can be selected according to different working conditions; a floating ball form is used for DN less than 150, and a fixed ball form is used for DN less than 200.
6. An auxiliary sealing structure can be installed at the valve seat of the ball valve. A grease injection valve is added at the valve seat and valve stem for temporary sealing in emergency situations. The valve stem can also be lengthened as needed to adapt to buried installation environments.
III. Part Materials:
Serial No. |
Part Name |
Material |
||
Q647MF-C |
Q647MF-P |
Q647MF-R |
||
1 |
Valve Body |
WCB |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
2 |
Sphere |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
3 |
Valve Stem |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
4 |
Sealing Ring |
Reinforced PTFE, polyphenylene oxide |
||
5 |
Packing |
PTFE, flexible graphite |
||
Applicable Medium |
Lime, coal powder, coal ash |
Nitric acid |
Acetic acid |
|
Applicable Temperature |
-28℃～300℃ |
|||
IV. External Dimensions:
Nominal Pressure |
Nominal Diameter |
Dimensions (mm) |
||
L |
W |
H |
||
1.6 |
25 |
165 |
235 |
298 |
32 |
178 |
235 |
304 |
|
40 |
190 |
330 |
370 |
|
| Industry Category | Machinery & Equipment/Valves/Ball Valves |
|---|---|
| Product Category | |
| Brand: | 上海舟腾 |
| Spec: | Q647MF |
| Stock: | 99 |
| Manufacturer: | 上海舟腾泵阀制造有限公司 |
| Origin: | 113120 |
