CWF Swinging-Arc Valve
The CWF swinging-arc valve uses a spherical-shape dome and an inflatable-seal to ensure a 100% airtight seal. Due to its features, the valve achieves a long service life, particularly in abrasive applications. Consequently, overall system reliability is increased dramatically.

Features and Benefits :
The dome is actuated through a quarter-circle arc via a rotary actuator or linear double-acting cylinder and linkage mechanism.
Quick-exhaust valves are used to ensure rapid opening and closing of the valve.
During operation, the valve provides a full-bore and unrestricted flow of material, which does not impact on the dome. This maximises service life of the valve. Also, the valve is “self-cleaning”.
The inflatable-seal is only inflated when the valve is fully closed. This avoids shearing or jamming of particles between the seal and dome, and hence increases system reliability.
Applications:
- Blow tank inlet valve for pneumatic conveying systems.
- Dust, powder and/or granular products in coal-fired power plants, smelters, iron and steel plants, pharmaceutical and chemical industries.
Performance Characteristics:
- Operating Pressure = 0 to 1000 kPa g.
- Operating temperature <200 °C.
- Leakage test pressure = 1100 kPa g.
- Actuator = Pneumatic cylinder
(rotary or linear double-acting).
Valve Type | Valve Size, DN(mm) |
Operating Temp |
---|---|---|
CWF-Swing: swinging-arc valve with pneumatic cylinder actuator |
200: 200 mm 300: 300 mm
|
200: <200 °C |