Pneumatic Ceramic Rotary Valve
Ceramic hard seat and single-disc rotary design for particles, ash, slurry and abrasive service.
Product Overview
The pneumatic ceramic rotary valve uses a ceramic hard seat and single-disc rotary design with self-cleaning sealing surfaces. A flanged body is standard; wafer-style construction and two- or three-piece bodies are available for the service conditions.
It is designed for on-off control in conveying lines handling hard particles, ash, slurry and corrosive media, with strong resistance to abrasion, corrosion and erosion and stable operation.
Components and Materials
| No. | Component | Carbon Steel Version | Stainless Steel Version |
|---|---|---|---|
| 1 | Bonnet | ASTM A216 WCB | ASTM A351 CF8 |
| 2 | Valve Seat | Structural Ceramic | Structural Ceramic |
| 3 | Disc | ASTM A105 + structural ceramic | ASTM A182 F304 + structural ceramic |
| 4 | Support Arm | ASTM A216 WCB | ASTM A351 CF8 |
| 5 | Valve Body | ASTM A216 WCB | ASTM A351 CF8 |
| 6 | Rotary Arm | ASTM A216 WCB | ASTM A351 CF8 |
| 7 | Valve Stem | 17-4PH | 17-4PH |
| 8 | Pneumatic Cylinder | Component | Component |
| 9 | Cylinder Bracket | ASTM A216 WCB | ASTM A351 CF8 |
Performance
Ceramic Hard Seat
Structural ceramic is used in the flow path and sealing areas, providing strong abrasion, corrosion and erosion resistance for ash, particles and slurry.
Self-Cleaning Sealing Surface
The single-disc rotary design and self-cleaning sealing surface reduce media buildup during operation and lower the risk of ash packing and fouling.
Pneumatic Actuation
The compact cylinder-driven actuator provides stable opening and closing and can be configured for the site automation and control system.
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 Class 150,300
Size Range
·DN150~300/6″~12″
·Reduced-bore construction available
Design and Manufacturing Standards
·Body design and manufacture — ASME B16.34
·Face-to-face length — GB/T 12221, ASME B16.10 or customer specification
·Flange dimensions — GB/T 9113, ASME B16.5
·Inspection and testing — GB/T 13927, JB/T 9092, API 598
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.
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, actuator and site piping requirements.