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Wafer knife gate valve
The knife type gate valve is widely used in coal preparation, ash discharge, slag discharge, urban sewage treatment, food, health, medicine and other professional pipeline system
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Application
The knife type gate valve is widely used in coal preparation, ash discharge, slag discharge, urban sewage treatment, food, health, medicine and other professional pipeline system.
Characteristic
• Ultra-short connection length, saving material, greatly reducing the weight of the pipeline system;
• The bottom of the ram is a knife shaped inclined mouth, with the function of cutting off the medium, so that the valve is closed without medium blocking;
• Sealing face sealing has hard seal, soft seal, single seal and double seal and other forms;
• Driving mode: manual, electric, pneumatic, worm gear drive and other forms.
Design Guides
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Design and manufacture
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Structure length | Connector size | Inspection and test |
| NB/T47044、JB/T 8691 | GB/T 12221 | GB/T9124.1、JB/T79、 GB/T 17241.6 |
JB/T 8691 |
Product Range
| Nominal pressure | PN2.5、PN6、PN10、PN16 | |
| Nominal size | DN50～DN900 | |
| Body matenal | WCB、A105、25、HT250、HT300、QT400-15、QT450-10 | |
| Test pressure(MPa) | Strength test (Water pressure) | 1.5×P(38℃ pressure rating) |
| Sealing test (Water pressure) | 1.1×P(38℃ pressure rating) | |
| Applicable Temperature | -29℃～425℃ | |
| Applicable medium | Slag water mixture, air ash mixture, dry ash, coal cinder, etc | |
Note：
1、The valve beyond the above specifications can be customized according to user requirements;
2、The applicable temperature range of each valve shall be subject to the actual pressure bearing material of the valve.