Feeding dome valve
key word：Heat exchange element
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Product description
Feeding dome valve
1. Introduction
1.1. Purpose
The dome valve is the main supporting equipment of pneumatic ash conveying system. It is installed on the top of the bin pump and mainly controls the feeding and conveying of the bin pump.
1.2. Model meaning
DV- 100
DV -- Code of four top valve
100 --- feed inlet diameter (mm)
1.3. Structural features
The valve is a special valve which relies on compressed air to achieve tight sealing effect. It is suitable for handling dusty gas and abrasive bulk materials. The dome valve can pass through the static material column or the flowing material flow through the pressurized sealing, and realize the closing and sealing at the same time. The dome valve is made of wear-resistant material with excellent performance and high reliability.
2. Specification and performance
The specification and performance of the feed dome valve are shown in table 17-1.
Table 17-1 specification and performance of feed dome valve
| Item | JBT200 | JIBT250 | JBT300 |
| A | 200 | 249 | 283 |
| B | 150 | 189 | 218 |
| P1 | 368 | 470 | 591 |
| N1 | 683 | 863 | 1036 |
| ∮M | ∮470 | ∮560 | ∮630 |
| ∮J | ∮520 | ∮620 | ∮690 |
| ∮H | ∮390 | ∮480 | ∮551 |
| K(pcs)- ∮L | 8-∮22 | 8-∮26 | 12-∮26 |
3. Equipment appearance and structural dimensions
See Fig. 17-1 for equipment outline of feeding dome valve and table 17-2 for structural dimension.
| Model | DV200 | DV250 | DV300 |
| Inlet flange (PNI.0) | DN350 | DN450 | DN500 |
| Design pressure (MPa) | 0.7 | ||
| running pressure (MPa) | <0.5 | ||
| Working temperature(C) | ≤200 | ||
| Control air source pressure (MPa) | 0.5~0.7 | ||
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