Pneumatic Piston type Camflex Control Valve
SPF Pneumatic Piston type Camflex Control Valve is composed of pneumatic rack and pinion actuators
and Camflex control valve body assembly
The plug’s geometric center deviates with rotation axis, which can reduce the seat abrasion and extend
the lifetime of the product. The flow guiding wing at the plug’s back is good for stabilize fluid flow, so
it has excellent stability. In addition, it has large flow capacity and wide range ability. It is especially
suitable for the control of those slurry fluids susceptible to clogging.
SPF Pneumatic Piston type Camflex Control Valve is characterized by compact structure, large output
torque ,effective handle and long lifetime. It can be widely used in oil, chemical, power station, paper
and pulp, metallurgy, metal, Medicine, food and light industrials etc.
■ Standard Specifications
Body
Type: Camfex control valve (As shown in figure 1)
Nominal diameter: DN25 ,40 ,50,80 ,100, 150 ,200 ,250, 300
Nominal pressure: GB PN1.6 ,4.0 ,6.3 Mpa ANSI150,300,600
End Connection: Flangeless type (Wafer)
RF GB PN1.6,2.5,4.0,6.3Mpa According to HG20596-97M,FM
Face to Face Dimension：wafer according to EN558:1995 basic series36
RF according to GB/T12221-1989 EN558:1995 and ISO5752-1982 basic series 3
Body Material: Please refer to table1 1
Bonnet Type： Together with body
Packing Material: V-type compound packing, graphite compound packing,
Graphite packing, Operating Temp is shown in table 2
Seal Gasket：Spiral wound gasket, Graphite with metal gasket, Zigzag gasket, gasket,
Specific materials and suitable temperature range, please see table 3
Packing Gland ： Bolts impacted
Paint: Carbon steel shell surface required to paint, stainless steel or copper surface
without paint .
Trim:
Plug type: Camfex plug with guiding wing
Flow Characteristics: Approximate equal percentage
Trim Material: STD material assembly and operated Temp. shown in table 4
Rotary Angle: 90°
Actuator:
Type: GTX-B series angle travel Pneumatic actuators
Material: Cylinder body ,Extruded aluminum alloy
Caps and Piston,Die- cast aluminum alloy
Action: DA double acting,
SR spring return,air to open or air to close
Structure: Double piston double air-chamber rack and pinion(DA) , please refer to figure 2
Double piston Spring return rack-and pinion (SR),please refer to figure2 and figure 3.
Air Supply: DA 0.1~1.0Mpa,
SR 0.2~1.0Mpa
Working temperature: -20℃~+150℃
Angle Rotation adjustable scope:90°±4°
Signal Interface:1/8’G,NAMUR1/4’G,NAMUR1/2’G
Dynamic Medium: clear, dry ,no corrisive air or the other gas.
Surface Protection: Caps and springs ,Powder epoxy painted,
Cylinder body, anodic oxidation treatment after sand blast.
Standard Configuration with Valve: please refer to table 5
Accessory
Positioner, Filter-regulator valve ,Solenoid valve, Limit switch,
Valve position Transmitter, Handwheel , Booster relay, Air control valve, Pnumatic lock-valve,etc.
s, etc
Performance
Travel time:please refer to table 6
Seat leakage:Metal seal is according to ANSI B16.104 ClassⅣ,ClassⅤ,soft seal is according to ANSI
B16.104 Class VI
Rated CV:As shown in table 6
Linearity：±2% (with positioner) ±5%( positioner with equal percentage CAM)
Hysteresis: 1.5%
Start–end point error: ± 2%
Range ability：100:1
Allowable pressure differential：As shown in table 7.1-7.8
Figure Size：As shown in figure 5, table 8.1,8.2
Weight of product：As shown in table 8.1,8.2
Special requests
Produced according to the requirements of customers, details as follows:
○Special inspection
Flow characteristic test, material test ,low temperature test, steam test , non-damages test
○copper-free treatment
○completely oil-free,water-free treatment
○appointed coating
○special air piping and fitting
○dust and sand proof
○strong corrosion proof
○vacuum service
○stainless steel bolt and nut for exposed parts
○cold area proof
○tropical area proof
○Machining back of flange back
○With Sewage bolt
○Double packing
○Steam jacket
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