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FIXED CONE VALVE

Discharge type FIXED CONE VALVE (Howell-Bunger Discharge Valve)mainly used at the outlet of the high-pressure drainage pipeline, when the discharge type conical valve is working, the water flow diffuses at a wide conical angle. Between type fixed cone valve also available.Application: bypass free discharge valve; Reservoir dam vent valve; Flow regulating valve; Pressure control valves etc.

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Standard and Scope:


Size: NPS 4"~160"  DN100~DN4000                            
Pressure Rating:  PN6~PN25                
Connection: Double flangeTemperature:-10℃ ~ 90℃
Medium: water, raw water, non-corrosive liquid
Operation:Manual (screw), Hydraulic, Electric, Electro-hydraulic
Body Material: Ductile iron, Carbon steel(steel pipe /cast steel), Stainless steel
Cylindrical sleeve/Guide rail/Sealing ring Material: Stainless steel, Copper alloy
Seat Material: Rubber , Metal
Model: Inclined, Horizontal
Optional: Between pipe type fixed cone valve available


Design feature 

 

Linear flow characteristics;

Cavitation can be effectively controlled by fixing the cone at the back of the conical valve seat, so that the area where cavitation occurs is not on the pipe wall of the nozzle. The velocity and energy deflector at the back of the valve separates the cavitation area from the metal wall of the valve body, causing bubbles to rupture inside the valve body instead of on the metal wall of the valve body, preventing the valve from being damaged by cavitation;

Low vibration, even when the valve opening is less than 10%, it will not vibrate;

Floating valve seat and metal sealing design ensure sealing effect and extend the service life of the valve;

Low flow resistance loss, which can meet the requirements of flow control under lower pressure difference;

The driving mechanism is located outside the valve body, with low operating torque and easy maintenance;

Strong anti-blocking ability;

Umbrella-like tearing open of the water jet via jet guiding cone

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