Ceramic Slag Discharge Valve
Designed for on-off control of hard particles, ash, slurry and corrosive media.
Product Overview
This valve is designed for hard particles and corrosive media containing softer solids. Typical service includes hydraulic coal conveying with a slag-to-water ratio above 1:5 and particles up to 5 mm, hydraulic slag and ash removal, and slurry pipelines. Nominal pressure is 1.0, 1.6, 2.5 or 4.0 MPa, with service temperatures up to 200°C.
All wetted parts use structural ceramic with exceptional chemical stability and hardness. The valve therefore provides very high abrasion, corrosion and erosion resistance, along with good thermal insulation and a low coefficient of thermal expansion.
Components and Materials
| No. | Component | Material |
|---|---|---|
| 1 | Valve Body | WCB |
| 2 | Main Valve Body | WCB |
| 3 | Valve Seat | Ceramic |
| 4 | Disc | WCB + Ceramic |
| 5 | Nut | 25 |
| 6 | Stud Bolt | 35CrMoVA |
| 7 | Packing | Flexible Graphite |
| 8 | Packing Gland Flange | 2Cr13 |
| 9 | Valve Stem | 1Cr13 |
| 10 | Stem Nut | Bronze |
| 11 | Handwheel | KTII350-10 |
Performance
Full Bore and Anti-Clogging
The full-bore passage has no obstructions and includes a purge arrangement. Strong wear resistance, reliable sealing and low starting load reduce the risk of ash packing and buildup.
Premium Toughened Structural Ceramic Seal
A premium toughened structural ceramic seal provides high mechanical strength, excellent wear resistance and long service life. The compact valve can be installed at any angle.
Technical Parameters
Technical Configuration
·Ceramic hard seat, single-disc rotary valve
·Flanged body; wafer style available
·Two- or three-piece body
·Self-cleaning sealing surface
Pressure Rating
·PN10,16,40
·ASME Class150,300
Size Range
·DN150~300/6″~12″
·Reduced-bore construction available
Temperature Range
·-29℃~+200℃(+500℃)
·-20F~+390F(+930F)
Shutoff Rating
·ISO 5208 rate D
·Other shutoff ratings are available on request, up to zero leakage.
| Typical Application | Manufacturer Standard |
|---|---|
| Design and Manufacture | Manufacturer Standard |
| End-to-End Dimensions / Face-to-Face Length | GB/T 12221 |
| Flange Dimensions | GB/T9113.1 |
| Inspection and Testing | GB/T 9092 |
| Material: Carbon Steel | GB/T 12229 |
| Material: Stainless Steel | GB/T 12230 |
| Marking | GB/T 12220 |
| Supply | GB/T 12252 |
Installation Dimensions
Face-to-face length is per GB/T 12221, ASME B16.10 or customer specification.
Flange dimensions are per GB/T 9113 and ASME B16.5.
Confirm final installation dimensions against valve size, pressure rating, connection type and site piping requirements.