Dual Rotary Disc Valve
Technical Data
Dual Valve's Rotary Disc Valve is a unique rotating gate valve designed specifically for heavy abrasive and corrosive slurries. The patented design allows the valve to cycle in heavy slurrys without sticking.
As the handwheel is opened or closed, the disc rotates.
This happens due to the pressure pushing against the
disc, causing the disc to touch the valve body and
rotate. As the valve is cycled, the disc rotates 100mm,
seating in a different position each time. The valve
body has a cutaway behind the disc clearing debris
away and thus, ensuring the disc closes and seals.
The very nature of fabrication allows a maximum of flexibility in customizing to meet specific needs, materials pressure rating configuration. The bonnet is made of carbon steel and can be made out of different materials to suit the customer. The bonnet houses the rotating disc and seals around the spindle.
All types of actuators can be fitted, electric, gearbox, hydraulic, pneumatic and handwheel.
Dust covers and PVC bellows to protect spindle.
Valve Body: Carbon Steel, Cast Steel or Stainless
Steel
Material: Gate material can be carbon steel,
roc-tuff or Stainless Steel.
Thickness: Gate to have a minimum safety
factor of 2:1 based on yield strength
of material.
Shape: radius to be set for minimum
valve height in chest area. Gate is
round with ‘O’ring or urethane seal.
Thrust Bearings: Certification
To reduce operating torque.
Materials: Valves are tested per SABS
specifications certified.
Pressure Rating: 10 bar to 100 bar (150Psi to
1500Psi)
Flanges: Flanges comply with ANSI, DIN,
SABS or BS.
Face-to-face: To suit customer specification.
Lifting Lugs: Valves have lifting lugs/holes sized
and located for safe hoisting of valve
assembly.
Body Lining: Rubber, URETHANE or Ceramic.
