Size Range: DN50 to DN350
Pressure Range: Class 150
End Connection: Flange
Material: Forged Steel (ASTM A105, A350 LF2, A182 F316)
Seals: Metal-to-Metal Sealing
Valve Design: Y-pattern with bolted bonnet
Face to Face: Conforms to ASME B16.10
Testing & Inspection: Per API 598
Manufacturing Standard: ASME B16.34, BS1873
The Y-type slurry valve is a robust, wear-resistant valve designed specifically for handling abrasive, viscous, and solid-laden fluids. Featuring an angled Y-pattern body, this valve ensures smoother flow paths with minimal resistance and clogging—ideal for slurry service in harsh industrial environments. It is engineered in compliance with ASME B16.34, with reduced bore design and face-to-face dimensions customizable based on user requirements. Common material options include ASTM A216 WCB, ASTM A105-HF, and stainless steel trims to withstand corrosion and abrasion.
This valve is typically available in manual (handwheel), gear-operated, or electric-actuated versions, and supports pressure classes from Class 150 up to Class 600. The sealing structure and replaceable seat/disc design facilitate reliable operation and easy maintenance.
The left and right valve bodies are of separate type, and the valve seat is positioned between the two halves. By loosening the bolts connecting the two valve bodies, the seat can be removed and replaced. The valve cavity is equipped with an anti-wear and corrosion-resistant protective layer. When the valve is opened, the seat is shielded to minimize erosion. The valve body undergoes electroless nickel plating (N.P.) surface treatment, achieving hardness of HRC60–62, providing excellent wear and corrosion resistance.
The valve seat and sealing surface are surfacing welded with stellite or tungsten carbide to ensure a durable sealing line and reduce surface damage. The structure includes anti-rotation features to prevent the valve stem from rotating, allowing only linear motion during opening and closing. This ensures longer service life and sealing integrity.
Valve drive types: manual, gear, electric, pneumatic.
| No. | Accessory Name | Material |
|---|---|---|
| 1 | Left Body | ASTM A216 WCB |
| 2 | Body Bolt | ASTM A193 B7 |
| 3 | Body Nut | ASTM A194 2H |
| 4 | Gasket | Graphite + Stainless Steel |
| 5 | Seat | ASTM A105+HF |
| 6 | Disc | ASTM A105+HF |
| 7 | Stem | ASTM A182 F6a |
| 8 | Two-half Ring | ASTM A182 F6a |
| 9 | Disc Stem Nut | ASTM A105 |
| 10 | Right Bolt | ASTM A216 WCB + Alloy Steel |
| 11 | Packing | Graphite |
| 12 | Bonnet Bolt | ASTM A193 B7 |
| 13 | Bonnet Nut | ASTM A194 2H |
| 14 | Packing Gland | ASTM A182 F6a |
| 15 | Packing Flange | ASTM A216 WCB |
| 16 | Gland Eye Bolt | ASTM A193 B7 |
| 17 | Eye Bolt Nut | ASTM A194 2H |
| 18 | Yoke | ASTM A216 WCB |
| 19 | Yoke Sleeve Nut | Alloy Copper |
| 20 | Hand Wheel | Ductile Iron |
| Size DN(mm) | NPS (in) | Driving Manner | L | D | D1 | D2 | B | Z–Φ | f | Do | H | Driving Device |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 2 | Hand Operated | 230 | 150 | 120.5 | 92 | 16 | 4–20 | 2 | 250 | 307 | – |
| 80 | 3 | Hand Operated | 310 | 190 | 152.5 | 127 | 19.58 | 4–20 | 2 | 250 | 386 | – |
| 100 | 4 | Hand Operated | 350 | 230 | 190.5 | 157.5 | 24 | 8–20 | 2 | 250 | 448 | – |
| 125 | 5 | Hand Operated | 400 | 255 | 216 | 186 | 24 | 8–22 | 2 | 320 | 519 | – |
| 150 | 6 | Hand Operated | 480 | 280 | 241.5 | 216 | 25.5 | 8–22 | 2 | 360 | 600 | – |
| 200 | 8 | Gear Driving | 600 | 345 | 298.5 | 270 | 29 | 8–22 | 2 | 450 | 795 | BA–1 |
| 250 | 10 | Gear Driving | 730 | 405 | 362 | 324 | 30.5 | 12–26 | 2 | 600 | 880 | BA–1 |
| 300 | 12 | Gear Driving | 850 | 485 | 432 | 318 | 32 | 12–26 | 2 | 600 | 935 | BA–1 |
| 350 | 14 | Gear Driving | 980 | 535 | 476 | 413 | 35 | 12–30 | 2 | 600 | 1088 | BA–2 |
| 200 | 8 | Electric Driving | 600 | 345 | 298.5 | 270 | 29 | 8–22 | 2 | 305 | 995 | SMC–00 |
| 250 | 10 | Electric Driving | 730 | 405 | 362 | 324 | 30.5 | 12–26 | 2 | 305 | 1045 | SMC–00 |
| 300 | 12 | Electric Driving | 850 | 485 | 432 | 381 | 32 | 12–26 | 2 | 305 | 1105 | SMC–00 |
| 350 | 14 | Electric Driving | 980 | 535 | 476 | 413 | 35 | 12–30 | 2 | 305 | 1250 | SMC–00 |
Y-type slurry valves are commonly used in:
Alumina production: handling alkaline aluminum oxide slurry
Mining and mineral processing: controlling the flow of ores, slurry tailings, and flotation agents
Thermal power plants: conveying pulverized coal ash and slag discharge
Chemical and paper industries: dealing with thick pulp, chemical sludge, and other abrasive fluids
Coal-fired systems: transferring high-density, high-temperature ash and slurry
Their rugged construction and Y-body design make them particularly suitable for any service involving erosive media under high pressure and elevated temperatures (up to 425°C).
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