The CMO AB Knife Gate Valve is a general purpose valve with a monobloc body suitable for bidirectional service in low and medium-pressure applications.
The monobloc machine-cast body has built-in wedges that allow true bidirectional flow at the same working pressure.
This valve has a soft seat with a U-shaped rubber sealing joint covering the gate’s perimeter. An internal stainless steel wire maintains the shape of the sealing joint and keeps it in place. This design ensures a completely flat seal that prevents solid build-up and internal cavities.
The CMO AB Knife Gate Valve is suitable for liquids with a maximum solids concentration of 4%.
                    
                        Technical specifications                    
                                            
                            
                        
                                    
                                    
Brand
        
        CMO
    
Model
        
        AB series
    
Size range
        
        DN50–600 (2–24”)
Contact us for bigger sizes
Contact us for bigger sizes
Pressure class
        
        10 bar (DN50–150) 
8 bar (DN200)
6 bar (DN250–300)
5 bar (DN350–450)
3 bar (DN450–600)
Contact us for other pressure classes
8 bar (DN200)
6 bar (DN250–300)
5 bar (DN350–450)
3 bar (DN450–600)
Contact us for other pressure classes
End connections
        
        Wafer
    
Actuator options
        
        Handwheel 
Gear operated
Pneumatic
Hydraulic
Electric
Gear operated
Pneumatic
Hydraulic
Electric
                    
                        Material specifications                    
                                            
                            
                        
                                    
                                    
Body
        
        Standard: GJS-250 cast iron and CF8M stainless steel
On request: GJS-500 nodular cast iron, A216WCB carbon steel, and stainless steel alloys (AISI 316 Ti, Duplex, 254 SMO, Uranus B6)
On request: GJS-500 nodular cast iron, A216WCB carbon steel, and stainless steel alloys (AISI 316 Ti, Duplex, 254 SMO, Uranus B6)
Gate
        
        Standard: AISI 304 and 316 stainless steel
Contact us for other materials, coatings, and finishes
Contact us for other materials, coatings, and finishes
Seat and max temperature
        
        EPDM, nitrile (90°C)
Silicone (200°C)
Viton (210°C)
Silicone (200°C)
Viton (210°C)