FloSource is a stocking Clarkson distributor, Clarkson offers the most extensive line of slurry isolation and control valves on the market. Clarkson valves are used on tough slurry applications such as limestone slurry in FGD applications, bottom ash applications, cement applications, and more. Clarkson offers a narrow face/face (KGD) to replace most manufacturers existing knifegate valves.
Clarkson offers the C Valve which provides the end user with a long-term cost-effective solution for throttling or controlling slurries.
Clarkson C-Valve
General Applications
This unique valve provides both high performance and long life in the toughest of environments and features a truly variable orifice for throttling control of abrasive slurries.
- Mining
- Power
- Pulp and paper
- Alumina
- Chemical
- Cement
Technical Data
| Size range: | 1″ to 10″ (larger sizes may be available) |
| Operating pressure: | 100 psi |
| Sleeve: | Gum rubber standard |
| Temperatures: | Standard sleeve rated to 160°F, up to 400°F with proper elastomer selection. |
Click here to view the product brochure! 
Features
- Specifically designed for slurry service.
- No metal parts in contact with the flowing slurry.
- Molded elastomer sleeve, no fabric.
- Inherent abrasion resistance of sleeve provides both high performance and long life.
- The C-Valve closes in compression, not tension, creating less stress on the sleeve, therefore the sleeve is not subject to tear propagation resulting from solid particles passing through the valve at high velocity.
- Rubber muscle constricts a full 360-degrees around the sleeve maintaining a perfectly round and concentric aperture across the full throttling range.
- Round orifice provides high capacity, straight through, unobstructed slurry flow.
- Modified linear characteristic make the valve compatible with most automatic control requirements.
- Throttling range from wide open to 50% reduction in diameter, or 75% reduction in orifice open area, up to a 90% reduction of maximum flow.
- Field-replaceable, elastomer wear parts are standard.
- Automated or manual valve actuation.
- Valve sizing and applications assistance available.
Clarkson KGA
General Applications
Field-proven Clarkson KGA slurry knife gate valves feature heavy-duty, full port elastomer linings offering the ultimate in protection against heavy slurries.
- Mining
- Power
- Pulp and paper
- Alumina
- Chemical
- Cement
Technical Data
| Size range: | 3″ to 24″ |
| Operating pressure: | 100 psi |
| Size range: | 26″ to 42″ |
| Operating pressure: | 75 psi |
| Size range: | 48″ to 54″ |
| Operating pressure: | 50 psi |
| Size range: | 60″ |
| Operating pressure: | 30 psi |
| Sleeve: | Natural rubber standard |
| Temperatures: | Standard sleeve rated to 160°F, up to 400°F with proper elastomer selection |
| Larger sizes available, contact sales. | |
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Features
- Meets a wide range of abrasion, corrosion, temperature, and pressure requirements
- May be used in wet or dry services easily dealing with large, heavy particles and tramp material
- Heavy duty, field replaceable elastomer sleeves with internal stiffener (U S patent 5,271,426)
- No metal parts in contact with the flowing slurry
- Unobstructed flow eliminates turbulence, minimizes pressure drop across valve
- 100% isolation; bubble tight shut-off results in absolutely zero downstream leakage
- Double seated design provides bi-directional flow and shut-off
- No seat cavity where solids can collect and prevent full gate closure
- No gate or stem packing is required, eliminating packing leakage and maintenance
- Adaptable frame (yoke) design featuring a top-removal stem nut
Clarkson KGD
General Applications
The Clarkson KGD wafer style slurry knife gate valve offers the latest in elastomer technology with the Mark III sleeve design.
- Mining
- Power
- Pulp and paper
- Phosphates
- Sheet/Metals
- Chemical
- Cement
Technical Data
| Size range: | 2″ to 24″ |
| Standard Pressure Ratings: | 2″ to 16″ rated to 150 psi CWP |
| 18″ to 24″ rated to 90 psi CWP | |
| Optional Pressure Ratings: | Up to 200 psi CWP |
| Sleeve: | Gum rubber standard |
| Temperatures: | Standard sleeve rated to 160°F, up to 300°F with proper elastomer selection |
Click here to view the product brochure!
The KGD Mark III Sleeve
As a result of our never-ending desire for continual improvement, Tyco Flow Control (TFC) has developed the KGD Mark III Slurry Valve Sleeve from Clarkson. The Mark III incorporates advanced features gained from thousands of installed Clarkson KGD slurry valves, giving you a better overall performer with additional features:
- A more robust support disc is incorporated into the one-piece design which resists over-compression of the sleeve.
- Internal profile of sleeve provides a pressure assist to the sealing function.
- Sleeve profile reduces drag and provides longer service life.
- Easier installation in a variety of pipe styles.
- Tests show lower installation torque requirements.
- The Mark III sleeve can be installed in any existing KGD valve, allowing hassle free upgrade to the latest technology.
KGD Features
- 100% Isolation; bubble-tight shut-off results in absolutely zero downstream leakage.
- Double-seated design provides bidirectional flow and shut-off.
- Unobstructed flow eliminates turbulence, minimizes pressure drop across valve.
- No seat cavity where solids can collect and prevent full gate closure.
- Dynamic self-adjusting secondary seal.
- No gate or stem packing is required, eliminating packing leakage and maintenance.
- Long lasting lubrication.
- No metal parts in contact with the flowing slurry.
- Adaptable frame (yoke) design featuring a top-removal stem nut, can be field modified to an air cylinder or bevel gear in the field without welding.
Clarkson KGF
General Applications
The Clarkson KGF and KGF-HP slurry knife gate valves provide proven slurry valve technology in higher pressures.
- Mining
- Power
- Pulp and paper
- Alumina
- Chemical
- Cement
Technical Specifications
| Size range: | 3″ to 36″ or larger |
| Pressure range: | KGF: 300 psi CWP |
| KGF-HP: 740 psi CWP | |
| Sleeve: | Natural rubber standard |
| Temperatures: | Standard sleeve rated to 160°F, up to 300°F with proper elastomer selection |
Click here to view the product brochure!
Features
- High pressure designs:
- KGF: 300 psi CWP
- KGF-HP: 740 psi CWP
for the most challenging applications. - Patented, field replaceable elastomer sleeves.
- Dynamic, self-adjusting secondary seal.
- Long lasting lubrication.
- No metal parts in contact with the flowing slurry.
- Unobstructed flow helps eliminate turbulence and minimizes pressure drop across valve.
- 100% Isolation bubble-tight shutoff results in absolute zero downstream leakage.
- Double-seated design provides bi-directional flow and shutoff.
- No seat cavity where solids can collect and prevent full gate closure.
- No gate or stem packing is required, eliminating packing leakage and maintenance.
- Adaptable frame (yoke) design, featuring a top-removal stem nut, can be field modified to an air cylinder or bevel gear in the field.
Clarkson KLB
General Applications
KLB wafer style linear line blind offers value, high performance and safety in a compact package.
- Mining
- Power
- Pulp and paper
- Alumina
- Chemical
- Cement
Click here to view the product brochure!
Technical Data
| Size range: | 2″ to 16″ rated to 150 psi |
| 18″ to 24″ rated to 90 psi | |
| Sleeve: | Gum rubber standard |
| Temperatures: | Standard sleeve rated to 160°F, up to 300°F with proper elastomer selection. |
Features
- Linear line blind simplifies a difficult, time-consuming process.
- No need to spread the the pipe to blank the line, actuation can be automated.
- Visual confirmation of the blank from all sides.
- Standard with closed position dual-function lock-out assembly.
- Detachable pin removes potential energy from actuator.
- Lock-out pin prevents unwanted blind movement.
- 100% Isolation-bubble tight shut-off results in absolutely zero downstream leakage, a true man-safe line blind.
- Patented, field replaceable elastomer sleeves available in a wide range of elastomers to meet varied applications.
- No seat cavity where solids can collect and prevent full blank closure.
- Adaptable yoke design featuring a top-removal stem nut, can be field modified to an air cylinder or bevel gear in the field.
- Linear line blinds above 24″ are available including sizes up to 54″.