| 
 ‘s
‘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.
- No blocking or leakage.
- No leakage to atmosphere.
- No sticking, (due to no guides).
- Long wear life, (due to rotating
gate/disc).
- Self clearing gate action.
- Seals in both directions.
- Repacking of gland stem seals
under pressure.
- Wedge for positive seal.
- Cut away to clean seating area.
- Fabricated and can be repaired
in line.
- Seal out of flow when in open
position.
- Rising or non-rising spindle.
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.
|
| 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. |
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.
All types of actuators can be fitted, electric, gearbox,
hydraulic, pneumatic and handwheel.
Dust covers and PVC bellows to protect spindle.
|
