Investment Casting & Industrial Valves 
Large-Bore Wafer Knife Gate Valve (Stainless Steel Thin Valve, L 55-95mm)
- 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)
| Body | 304, 304L, 316, 316L |
| Gate | 304, 304L, 316, 316L |
| Seat | PU/NBR |
| Nut | H62 |
| Stem | 304, 304L |
| Packing | NBR/EPDM |
For pipelines with large flow, high pressure, corrosive media, or limited installation space, DZFP-Z thin wafer knife gate valves are a practical option. They can be used in petrochemical, coal processing, energy, municipal water, environmental, metallurgy, paper, marine, shipbuilding, food, pharmaceutical, new energy, and new materials industries. Valve type and material are chosen based on the fluid, pressure, flow, and installation requirements.
| No. | Component | Quantity |
| 1 | Bearing Housing | 1 |
| 2 | Stem | 1 |
| 3 | Gate | 1 |
| 4 | Right Support Plate Assembly | 1 |
| 5 | Left Support Plate Assembly | 1 |
| 6 | Locking Pin | 1 |
| 7 | Packing Gland | 1 |
| 8 | Gate Seal Block | 1 |
| 9 | Left Body | 1 |
| 10 | Integral Bushing | 1 |
| 11 | Right Body | 1 |
| Size | L | D | D1 | D0 | N-M | N-Ø | H1 (Manual Operated) | H2 (Electric Operated) | |
| DN | NPS | mm | mm | mm | mm | mm | mm | mm | mm |
| 80 | 3" | 55 | 200 | 160 | 240 | 2-M16 | 6-18 | 380 | 660 |
| 100 | 4" | 55 | 220 | 180 | 240 | 28-M16 | 6-18 | 460 | 740 |
| 150 | 6" | 60 | 285 | 240 | 300 | 2-M20 | 6-22 | 550 | 830 |
| 200 | 8" | 70 | 340 | 295 | 300 | 4-M20 | 8-22 | 650 | 920 |
| 250 | 10" | 70 | 405 | 355 | 400 | 4-M24 | 8-26 | 730 | 1010 |
| 300 | 12" | 76 | 460 | 410 | 400 | 4-M24 | 8-26 | 830 | 1158 |
| 350 | 14" | 76 | 520 | 470 | 550 | 6-M24 | 10-26 | 910 | 1238 |
| 400 | 16" | 95 | 580 | 525 | 550 | 6-M27 | 10-30 | 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.
At SDPLDL, we are a trusted manufacturer specializing in precision investment casting and industrial valves for global markets. We operate our own manufacturing facility featuring over 200 sets of advanced manufacturing equipment and an in-house testing center equipped with 16-ton dynamic balancing machines. Our integrated manufacturing capabilities allow us to seamlessly produce precision investment casting valves, custom stainless steel large-diameter valves, and slurry valves under strict compliance with ISO 9001 standards.
