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Dumping valve (Class 150/300/400/600)
Products design features
The valve body of the slurry series is divided into left and right parts with a seat between them. The bolt connecting the two parts can be dissembled to replae the valve seaat.An anti-washing and anti-corrosion protection plae is set in the cavity of the valve body. At the momnet of the valve opens, the plate can protect valve from washing out or erosion, and carry out chemical Ni.P plating threatmen on the whole valve which makes the surface hardness reach HRC60-62.The sealing adopts spherical seal, the surfaceof which is line connecting.It can ensure the sealing realiabiity and avoid scabs.Moreover, the valve belt has back sealing structer which can protect filling packing in full-open state.A rotation-resitant device is set up to ensure that the valve stem only has straight line motions.and no revolving motions,The driving manners of the valve include hand driving, electric driving air operated and geared transmission.
Technical specification
1. Design and production accroding to ASMEBI6.34.
2. The size of flange ends according to ASME B16.5.
3. Inspecting standard: API598.
USE Range
Paper-making, pharmacy,coloring chemical and alkaline basic alumina slurr
Porducts performace specification
|
Nominal pressure (Mpa) |
Shell test pressure (Mpa) |
Sealing test pressure | Medium temperature | Applicable Medium |
| Class 150 | 3.0 | 2.2 | ≤300°c | Alkaline basic alumina slurry |
| Class 300 | 7.8 | 5.7 | ||
| Class 400 | 10.5 | 7.7 | ||
| Class 600 | 15.0 | 11.0 |
Materials List
| No. | Parts Name | Material | No. | Parts Name | Material |
| 1 | Seat | ASTM A105+STL | 13 | Left Part | ASTM A216-WCB |
| 2 | Gasket | Graphite+Stainless stell | 14 | Guard plate | AISI 9260 |
| 3 | Disc | ASTM A105+STL | 15 | Stud | ASTM A193-B7 |
| 4 | Beam pad | AISI 5140 | 16 | Nut | ASTM A194-2H |
| 5 | Split ring | Carbon steel | 17 | Body | ASTM A 216-WCB |
| 6 | Dics cover | ASTM A105 | 18 | Bonnet | ASTM A216-WCB |
| 7 | Stem | ASTM A276-410 | 19 | Yokenut | Copper alloy |
| 8 | Move-proof plate | ASTM A105 | 20 | Bearing gland | ASTM A105 |
| 9 | Packing seat | ASTM A276-410 | 21 | Handwheel | |
| 10 | Packing | Graphite | 22 | Driving device | Electric |
| 11 | Stuffing cover | ASTM A276-410 | 23 | Driving device | Geared transmission |
| 12 | Cland | ASTM A216-WCB |
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