proecontrol
Paste Backfill Borehole Velocity Control Valve Anti-Cavitation Start-Up Choke Valve
key features
Valve Sizes: 4”, 6”, 8” & 10”
Pressure ratings to suit 20 thru to 150 Bar systems
Fixed Orifice to Class IV shut-off
Full bore opening when needed
Designed for Abrasive, Scaling, Aggressive and Plugging slurries/pastes
Flow centering designs to reduce velocity related wear of valve body and downstream pipework
Integral positioner to guard against damage in service
application
Designed for Paste Backfill and Tailings flow control applications where precise control is required to maintain pressures, level or most importantly reduce velocities and start-up cavitation.
These valves are designed with the most severe abuse a choke/control valve could be subjected to in respect to abrasive media where velocities typically result in high seat and trim erosion.
The bullet-proof design has made this the valve of choice for long vertical drop velocity control and cavitation/vibration control in start-up phases within paste delivery pipelines below ground. Reduced media segregation also helps control blockages, but also as a back pressure controller for atmospheric discharge of tailings in dewatering and batching systems.
specifications
item/description | description |
|---|---|
Body Design | 60° Y Pattern Outlet Piston Valve |
Construction Type | Forged Body |
Design Codes | ASME B16.34, ISO EN12516 |
Testing Specification | API 598 & ISO EN12266 |
Certificate of Compliance | PED 97/23/EC |
Operator Type | Pneumatic – Double Acting |
Stem | High Strength – Anti-Blowout Design |
Piston | 316SS + TC – Min. 150μm Thickness |
item/description | description |
|---|---|
Valve Size Range | 4.0” / DN100 |
Working Pressure (max) | 100, 150 & 250 Bar Designs |
Pipe Connection | RF & RTJ Flanged or Victaulic |
Mounting Spool NB Sizes | 100, 125, 150, 200 & 250 |
Mounting Spool Pipe Schedule | 80, XS, 120, 160 & XXS |
Mounting Spool Pad Flange | 4.0” ANSI 600# / 900# / 1500# |
Mounting Spool Length | 500 (mm) or 750 (mm) |
Dump Flow Rate (max). | 100NB @ 14.3 ℓ/sec |
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Whether planning a new project or looking to upgrade your current flow system, get in touch to discuss the best possible solution for your current process.
