SERIES-22 QUARTER TURN PINCH VALVE

    

 

DIA-CAMTM PINCH VALVE
QUARTER-TURN FLANGED END
(Patent number 4,682,755)

  
SERIES 22 QUARTER TURN DIA-CAMTM

TheSeries-22 Quarter-Turn Dia-Cam valve is a high flow capacity pinch valve. Designed for hard-to-handle fluids specially slurries. The valve interior consists of fabric reinforced elastomeric or PTFE lined Diaphragm Spool…the only wetted component of the valve.

Two opposing gear driven cams, contain in a flanged split vinylester-fibreglass body, act on the Diaphragm Spool, providing flow control over the entire 90 degrees of valve stem travel. The vale exhibits negligible pressure drop in the open position and bubble-tight closure even around solids in the closed position. Where solids in the slurry make operation of the other types of valves, such as ball, plug and butterfly valves, extremely problematic, the Series-22 Dia-Cam valve is ideally suited for slurries since there are no “dead zones” in the valve internals.

The valve ID mates to Schedule 40 piping systems and installs without flange gaskets. The value is utilized in either ON-OFF or FLOW CONTROL applications.

Features

*   Flow-thru design, no “dead zones”
*   Only ONE wetted component
*   No flange gaskets required
*   Closes bubble-tight on solids
*   On-off or flow control service
*   Lever detent assembly for manual operations
*   Actuated with any Quarter-Turn pneumatic or electric control package
*   Corrosion-resistant vinyl ester-fiberglass construction
*   Molded-in steel inserts for flange bolts and actuator mounting bolts
*   Face-to-Face dimensions per ANSI B16.10, Class 150
*   Flange dimensions per ANSI B16.5, Class 150
*   Diaphragm Spool materials available in many std & food grade elastomers and PTFE-line
*   Four Inch valve available on request

Applications

o   Lime slurry, FGD scrubber fluids
o   Limestone, titanium dioxide slurries
o   Pulp, resin-fiber slurries
o   Sewage treatment fluids, grit
o   Powers, plastic pallets
o   Paints, pigments and glues
o   Paints, pigments and glues
o   Corrosive gels, brine and caustic soda
o   pH control chemicals, precipitates
o   Sand-water mud, resin-fiber slurry
o   Pet food, candies cereals
o   Metallic sludge, paper stock
o   Photographic chemicals, alumina
o   Soda ash, caustic soda
o   Personal care products

Dimensions

Construction

Value Operations

Manual operation of the valve is accomplished with a seven position, notched detent plate and spring loaded lever assembly. Automated operation is achieved by assembling any pneumatic or electric quarter-turn actuator control package to the stem, using a properly fitted coupbling and bracket. Tapped mounting holes are provided for assembling the bracket to the valve.

Maximum working pressure for all sizes is 125 psig. Operating temperature is -40 to 275 degree F, depending on the elastomer system used in the valve. Actuator sizing is determined by choosing the proper torque value found in the chart below for applicable process pressure. This value is the torque required to close off the valve, bubble tight, at the specific process pressure. For throttling applications, proper valves sizing involves determining the Cv required taking into consideration fluid viscosity, pipeline size and cavitations potential.