Q647H Pneumatic Ball Valve for Coal Powder and Ash Discharge is widely used in oil, natural gas, coal, and ore extraction, refining, and pipeline systems. It also finds application in chemical, pharmaceutical, and food industries, power generation systems (hydropower, thermal, and nuclear), municipal and industrial water supply and drainage, heating, gas supply, agricultural irrigation, and metallurgical production. This versatile mechanical product plays a crucial role in construction, national defense, and daily life by controlling the flow of media through pipelines.
**Technical Specifications:**
- **Temperature Range:** -196°C to 600°C
- **Application:** Industrial Use
- **Trademark:** OEM
- **Transport Packaging:** Wooden Case
- **Origin:** China
**Material and Properties of Key Components:**
| Valve Body | Valve Stem | Valve Sphere | Sealing Surface | Gaskets | Packing | Temperature | Medium |
|------------|------------|--------------|------------------|---------|---------|-------------|--------|
| WCB | 1Cr13 | 1Cr13 | 1Cr13 / Stellite Alloy | Soft Graphite + Stainless Steel | Soft Graphite / Braided Graphite | -29°C to 425°C | Water, Steam, Oil |
| WC6 | 15CrMo | 15CrMo | | | | -29°C to 425°C | |
| WC9 | 25Cr2MoV | 25Cr2MoV | | | | -29°C to 425°C | |
| LCB | 304 | 304 | | | | -46°C to 354°C | |
| CF8 | 304 | 304 | -196°C to 600°C | Partial, Acids, Alkali | | | |
| CF3 | 304L | 304L | | | | | |
| CF8M | 316 | 316 | | | | | |
| CF3M | 316L | 316L | | | | | |
**Key Features:**
1. The manual operation can be done using a steel plate or stainless steel handle. A limiting mechanism is included to prevent accidental operation, with a locking hole on the limit block for critical applications.
2. The stem is made from A182F (1Cr13) forging and tempered, with a hardness of HB220–250. It connects to the handle via flat key, spline, or square, ensuring easy assembly and disassembly.
3. The valve uses flexible graphite sealing rings or PTFE graphene seals, providing reliable sealing under lubricated conditions.
4. Static prevention structures are available, with conductive springs between the ball, stem, and body to avoid static ignition in flammable environments.
5. The valve offers different sealing options—soft, hard, or fireproof—depending on the application. DN150 uses a floating ball design, while DN200 uses a fixed ball.
6. An auxiliary sealing system allows for emergency sealing via grease injection, making it suitable for underground installations.
**Important Connection Dimensions and Weights (PN 0.25 – 1.6 MPa):**
| PN | SERIES1L | SERIES2L | H | munual | H1 | E | F | W | WT(KG) | electric | H2 | L1 | pneumatic | H3 | L2 |
|----|----------|----------|---|--------|----|---|---|---|--------|----------|----|----|-----------|----|----|
| 50 | 216 | - | 102 | 107 | - | - | - | 230 | 12 | - | - | - | 274 | 270 |
| 65 | 241 | - | 114 | 125 | - | - | - | 400 | 16 | - | - | - | 379 | 405 |
| 80 | 283 | - | 127 | 152 | - | - | - | 400 | 22 | - | - | - | 389 | 405 |
| 100| 305 | - | 152 | 178 | - | - | - | 650 | 35 | - | - | - | 479 | 576 |
| 125| 356 | - | 184 | 300 | - | - | - | 1050| 58 | - | - | - | 552 | 576 |
| 150| 394 | - | 219 | 330 | - | - | - | 1050| 74 | 554 | 235 | 235 | 666 | 776 |
| 200| 457 | 500 | 273 | 398 | 115 | 350 | 600 | 600 | 205 | 600 | 235 | 235 | 736 | 776 |
| 250| 533 | 600 | 360 | 495 | 116 | 350 | 600 | 600 | 322 | 652 | 235 | 259 | 926 | 776 |
| 300| 610 | 700 | 395 | 580 | 171 | 400 | 800 | 800 | 460 | 760 | 400 | 400 | 1059 | 1060 |
| 350| 686 | 800 | 430 | 625 | 171 | 420 | 800 | 800 | 576 | 770 | 400 | 410 | 1127 | 1060 |
| 400| 762 | 900 | 470 | 670 | 257 | 400 | 800 | 800 | 864 | 830 | 400 | - | 1127 | 1060 |
| 450| 864 | - | 550 | 698 | 257 | 420 | 800 | 800 | 1280 | - | - | - | 1468 | 1360 |
| 500| 914 | 1000 | 580 | 840 | 257 | 400 | 800 | 800 | 1600 | 940 | 410 | - | 1538 | 1360 |
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