COVNA Knife Gate Valve
What Is Knife Gate Valve?
A knife gate valve is a valve used to handle particles, or corrosive, viscous media, providing fully open and fully closed services. Easy to operate, simple design andsavespace.
The knife gate valve has stainless steel and corrosion-resistant knife, which can be effectively used in industries with corrosive media and can cut off impurities and is not easy to block. Long life span.
- Paper and pulp
- Power plant
- Chemical
- Cement plant
- Wastewater treatment
- and other applications
Material Table of Main Parts Of Knife Gate Valve:
| 1. Valve Body | 2. Gate |
| 3. Valve Seat | 4. O-ring |
| 5. Valve Seat Cover | 6. Packing |
| 7. Pacing Gland | 8. Brackte |
| 9. Valve Stem | 10. Valve Stem Nut |
| 11. Bearing | 12. Support |
Technical Parameter Of Electric Knife Gate Valve:
The valve body of the electric knife gate valve adopts an integral design, with low fluid resistance and flexible and convenient operation. The screw drive of the valve adopts a double-plane bearing design, which greatly reduces the transmission friction and facilitates the opening and closing of the valve.
| Actuator Type | Multi-turn Electric Actuator |
| Conventional Power Supply | Three-phase: AC380V |
| Input Signal | 4mA~20mA |
| Protection Class | IP65, IP68 |
| Size Range(Inch) | DN50 to DN2000 (2" to 80") |
| Pressure | 10 / 16 bar (145 / 232 psi) |
| Temperature | -10℃ to 400℃ (14°F to 752°F ) |
| Connection Options | Flanged or Lugged |
| Valve Material | Cast Iron or Stainless steel 304/316/316L |
| Seal Material | PTFE, Metal hard seal or hard alloy |
| Flanged Standard | ANSI B16.5, GB/T9113, JB/T79, HG, SH, JIS, DIN, NF, BS |
Technical Parameter Of Pneumatic Knife Gate Valve:
The pneumatic knife gate valve consists of a pneumatic actuator and a knife gate valve. The knife gate valve is light and flexible in operation, small in size, smooth in passage, small in flow resistance, light in weight, easy to install and easy to disassemble.
| Actuator Type | Pneumatic Cylinder (Double Acting or Single Acting Actuator) |
| Size Range(Inch) | DN50 to DN2000 (2" to 80") |
| Pressure | 10 / 16 bar (145 / 232 psi) |
| Temperature | -10℃ to 400℃ (14°F to 752°F ) |
| Connection Options | Flanged or Lugged |
| Valve Material | Cast Iron or Stainless steel 304/316/316L |
| Seal Material | PTFE, Metal hard seal or hard alloy |
| Flanged Standard | ANSI B16.5, GB/T9113, JB/T79, HG, SH, JIS, DIN, NF, BS |
Technical Parameter Of Knife Gate Valve:
COVNA knife gate valve with features of full bore design, low resistance and easy maintenance, two-way circulation, good wear resistance and soft seal and hard seal are optional
| Operated Type | Hand Wheel |
| Size Range(Inch) | DN50 to DN2000 (2" to 80") |
| Pressure | 10 / 16 bar (145 / 232 psi) |
| Temperature | -10℃ to 400℃ (14°F to 752°F ) |
| Connection Options | Flanged or Lugged |
| Valve Material | Cast Iron or Stainless steel 304/316/316L |
| Seal Material | PTFE, Metal hard seal or hard alloy |
| Flanged Standard | ANSI B16.5, GB/T9113, JB/T79, HG, SH, JIS, DIN, NF, BS |
Dimension Of Knife Gate Valve:
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