Description
Knife gate valves are a specific type of gate valve that are typically used in industries for handling tough solids and slurries. Named for their shape, knife gate valves have a sharp, knife-like gate that can cut through viscous or solid material in the flow. They are commonly used in wastewater treatment plants, paper mills, mining operations, and food industries, among others. Their primary function is to start or sop a flow or adjust its volume, but they do not control the pressure or flow rate.
Main technical characteristics of the gate valve DNOVA GVKN1331E-2W-Fb-2P, body material - cast iron GGG40, knife material - stainless steel AISI 304, seal - EPDM, pneumatic actuator
| Nominal diameter DN, mm | 50 ÷ 300 |
| Nominal pressure of the gate valve, bar | DN50÷150 – 10 DN300 – 6 |
| Flow direction | two-way |
| Temperature of the working medium t, ⁰C | from -15 to +90 |
| Ambient temperature t, ⁰C | from -5 to +50 |
| Tightness in the valve | А |
| Working medium | wastewater, pulp, viscous, powder and crystallized media |
| Working medium of the pneumatic actuator | compressed air: ● pollution class 6; ● at ambient temperatures from +5°C to +50°C, the dew point is 10°C lower than the ambient temperature; ● at temperatures below +5°C the dew point is 5°C lower than the ambient temperature. |
| Connection to the pipeline | interflange |
| Nominal pressure of the flanges, bar | DN50÷150 – 10/16 DN200÷300 – 10 |
| Control type | pneumatic cylinder |
| Stem | retractable |
| Color | blue |
| Body material | cast iron GGG40 |
| Gate material | stainless steel AISI 304 |
| Seal material | EPDM |
Overall and installation dimensions of the gate valve DNOVA GVKN1331E-2W-Fb-2P, body material - cast iron GGG40, knife material - stainless steel AISI 304, seal - EPDM, pneumatic actuator
| DN | L±2 | ØD | ØD1 | ØD2 | D0 | Ød | H | N-Th, pcs-thread | Weight |
| mm | |||||||||
| 50 | 48 | 165 | 125 | 99 | 80 | 18 | 455 | 4-М16 | 9 |
| 65 | 48 | 185 | 145 | 118 | 100 | 18 | 500 | 4-М16 | 11 |
| 80 | 51 | 200 | 160 | 132 | 100 | 18 | 530 | 8-М16 | 14 |
| 100 | 51 | 220 | 180 | 156 | 125 | 18 | 635 | 8-М16 | 17,5 |
| 125 | 57 | 250 | 210 | 184 | 125 | 18 | 715 | 8-М16 | 21 |
| 150 | 57 | 285 | 240 | 212 | 160 | 23 | 810 | 8-М20 | 29 |
| 200 | 70 | 340 | 295 | 266 | 160 | 23 | 955 | 8-М20 | 41 |
| 250 | 70 | 395 | 350 | 319 | 200 | 23 | 1090 | 12-М20 | 62 |
| 300 | 76 | 445 | 400 | 370 | 200 | 23 | 1225 | 12-М20 | 75 |
Valve sketch DNOVA GVKN1331E-2W-Fb-2P, body material - cast iron GGG40, knife material - stainless steel AISI 304
Construction and materials of the gate DNOVA GVKN1331E-2W-Fb-2P, body material - cast iron GGG40, knife material - stainless steel AISI 304, seal - EPDM, pneumatic actuator
| № | Part name | Material |
| 1 | Body | Cast iron GGG40 |
| 2 | Gland seal | EPDM |
| 3 | Knife | Steel AISI304 |
| 4 | Guide | PTFE |
| 5 | gland | Carbon steel WCB |
| 6, 13 | Bolt | Steel AISI201 |
| 7-8 | Nut/Bolt | Steel AISI201 |
| 9 | Stem | Steel AISI201 |
| 10 | Split pin | Steel AISI201 or WCB (DN150-300) |
| 11 | Protective plate | Steel A3 |
| 12 | Support plate | Carbon steel WCB |
| 14 | Nut/Bolt | Steel AISI201 |
| 15 | Pneumatic actuator | - |
| 16 | Seat seal | NBR nitrile |
Valve sketch DNOVA GVKN1331E-2W-Fb-2P, body material - cast iron GGG40, knife material - stainless steel AISI 304
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
Please feel free to reach out to us for any questions or further assistance regarding your order.