Large-Bore Wafer Knife Gate Valve (80-500mm Stainless Steel Valve)
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Model: DZFP-F
- Nominal Diameter: DN80-DN500
- Pressure Rating: PN1.0-PN2.5 MPa
- Flange End: GB/T 9124, ANSI B16.5
- Suitable Media: Water, Steam, Oil, Slurry, Corrosive & Food-Grade Media, etc.
- Operating Temperature: -40 to 120℃
- Method of Operation: Manual, Electric, Pneumatic, Hydraulic
- Inspection & Testing: GB/T 13927, API 598
- Surface Treatment: Pickling, Passivation, Polishing (or as per customer request)
Materials
| Body | 304, 304L, 316, 316L |
| Gate | 304, 304L, 316, 316L |
| Seat | PU/NBR |
| Nut | H62 |
| Stem | 304, 304L |
| Packing | NBR/EPDM |
Applications
Large-bore wafer stainless steel knife gate valves resist corrosion, high pressure, and high flow, making them suitable for petrochemical, energy, water, environmental, metallurgy, marine, food, pharmaceutical, and new materials industries. Valve type and stainless steel grade are selected based on the pipeline conditions, flow requirements, and properties of the medium in each application.
Valve Parts
| No. | Component | Quantity |
| 1 | Bearing Housing | 1 |
| 2 | Stem | 1 |
| 3 | Gate | 1 |
| 4 | Support Plate | 2 |
| 5 | Packing Gland | 1 |
| 6 | Gate Seal Block | 1 |
| 7 | Body | 1 |
| 8 | Wear Sleeve | 2 |
| 9 | Gasket | 1 |
| 10 | Bottom Plate | 1 |
| 11 | Drain Pipe | 1 |
Dimensions
PN1.6MPa
| Size | L | D | D1 | D2 | D0 | N-M | H1 (Manual Operated) | H2 (Electric Operated) | |
| DN | NPS | mm | mm | mm | mm | mm | mm | mm | mm |
| 80 | 3" | 55 | 200 | 160 | 132 | 240 | 8-M16 | 380 | 660 |
| 100 | 4" | 55 | 220 | 180 | 156 | 240 | 8-M16 | 460 | 740 |
| 150 | 6" | 60 | 285 | 240 | 211 | 300 | 8-M20 | 550 | 830 |
| 200 | 8" | 70 | 340 | 295 | 266 | 300 | 12-M20 | 650 | 920 |
| 250 | 10" | 70 | 405 | 355 | 319 | 400 | 12-M24 | 730 | 1010 |
| 300 | 12" | 76 | 460 | 410 | 370 | 400 | 12-M24 | 830 | 1158 |
| 350 | 14" | 76 | 520 | 470 | 429 | 550 | 16-M24 | 910 | 1238 |
| 400 | 16" | 82 | 580 | 525 | 480 | 550 | 16-M27 | 1020 | 1348 |
Notes
- The valve specifications shown in the tables above are for reference only.
- Product specifications and technical data may change due to product improvements or updates, please contact us for the latest information.
- Valves can be customized according to customer requirements.