
FPV
Lined Slurry Knife Gate Valve
The FPV Lined Knife Gate Valve is designed for full on/off abrasive and corrosive applications. The Rubber lining is moulded throughout the body and chest area. The lining is flush with the bottom of the valve eliminating any pocket where material can collect. It has a full round port design with zero discharge to atmosphere.
Product features
Specifications
Size range: | 50mm – 750mm (2” – 30”) |
---|---|
Valve type: | Slurry knife gate |
Body style | Narrow body (wafer) |
Temperature range: | 80°C |
Pressure rating: | Up to 240 psi (16 bar) |
Body material: | Cast ductile iron, 2 coat epoxy painted or stainless steel |
Gate material: | 17-4PH Stainless Steel, 316L Stainless Steel, 2205 Duplex Stainless Steel, 2507 Duplex Stainless Steel, C276 HASTELLOY |
Blade coating: | Coated with fluorocarbon coating |
Body Lining: | Rubber with lip seat |
Replaceable Wear Ring: | Rubber, Urethane, High Chrome, Tungsten Carbide, Silicon Carbide or Ceramic |
Duty: | Abrasive applications |
Hydro-static test: | 1.5 Times the rated pressure |
Features
- Perimeter sealing at 16 Bar.
- Smooth bottom (no groove).
- No metal parts in contact with the flowing slurry.
- Bubble tight shutoff.
- No clogging bonnet to impede flow.
- External epoxy or powder coated.
- Easily adapted to fit most actuators.
- Low maintenance requirements.
- MSS-SP-81 face-to-face.
- Lock out & switch mountings.
- Live-load packing gland.
- Full-port design.
- Lightweight material for easy handling.
- Minimised chest area & close tolerances preventing media from packing.
- Robust gate design reduces bending.
- Zero discharge to atmosphere.
- No pressure drop across valve.
- Fluorocarbon coated valve to reduce friction when stroked.
- PTFE blade wiper.
- Two piece body.
- Universal tower frame.
How the VALVE works
The FPV knife gate valve features a two-piece valve body structure, where two heavy-duty valve bodies secure elastic a wear-resistant rubber around the disc edge, forming a U-shaped bidirectional seal. This U-shaped seal is hidden inside the valve body and wear ring, preventing direct impact with the medium, which greatly extends the seal’s lifespan. The sealing rubber has a double-layer structure: The inner seal is designed to cut off the medium flow, while the outer seal ensures that the medium remains inside the valve body, preventing leakage into the environment even after long service periods. This is especially crucial for handling corrosive media.
Applications
The valve is suited for mining and mineral processing, power generation, sand/gravel, chemical & soda ash, pulp & paper, environmental & effluent, dry feeds & powders.
Actuators
All types of actuators can be fitted; electric, gearbox, hydraulic, pneumatic and handwheel.
Accessories
- Limit switches
- PTFE blade coating
- Various blade materials
- Gate safety guards
Dimensions and Weights
Dimensions and weights are for guidance only – detailed dimension drawings are available on request.
All dimensions are in millimetres, unless otherwise stated.

Valve Size | ID | OD | W | L | H | H1 | H2 | H3 | H4 | H5 | A | B | BORE SIZE | C | N*M(UNC) | N*Ø | MH kg | BG kg | AC kg | HC kg |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
50 | 50.8 | 160 | 300 | 48 | 405 | 313 | 195 | 217 | 391 | 275 | 210 | 300 | 140 | 557 | 2*5/8-11 | 2*⌀18 | 12 | 23 | 25 | 30 |
80 | 76.2 | 190 | 300 | 51 | 462 | 361 | 225 | 242 | 439 | 275 | 210 | 300 | 160 | 557 | 2*5/8-11 | 2*⌀18 | 16 | 26 | 30 | 50 |
100 | 101.6 | 230 | 350 | 51 | 505 | 411 | 245 | 267 | 489 | 275 | 210 | 300 | 160 | 557 | 2*5/8-11 | 2*⌀18 | 20 | 30 | 48 | 60 |
125 | 125 | 255 | 350 | 57 | 544 | 450 | 260 | 298 | 528 | 275 | 210 | 300 | 200 | 557 | 2*3/4-10 | 6*⌀22 | 30 | 39 | 50 | 100 |
150 | 152.4 | 280 | 400 | 57 | 618 | 510 | 270 | 320 | 600 | 275 | 210 | 500 | 200 | 722 | 2*3/4-10 | 6*⌀22 | 35 | 55 | 75 | 111 |
200 | 203.2 | 343 | 400 | 70 | 710 | 606 | 345 | 402 | 696 | 275 | 210 | 500 | 250 | 722 | 2*3/4-10 | 6*⌀22 | 60 | 70 | 90 | 120 |
250 | 254 | 403 | 550 | 70 | 815 | 732 | 395 | 460 | 822 | 337 | 210 | 500 | 280 | 722 | 4*7/8-9 | 6*⌀26 | 85 | 90 | 120 | 140 |
300 | 304.8 | 483 | 76 | – | 840 | 475 | 520 | 930 | 337 | 233 | 600 | 300 | 722 | 4*7/8-9 | 6*⌀26 | 101 | 120 | 160 | 180 | |
350 | 336.6 | 535 | 76 | – | 920 | 525 | 536 | 1035 | 337 | 233 | 600 | 320 | 722 | 4*1-8 | 8*⌀29.5 | 134 | 150 | 180 | 200 | |
400 | 387.4 | 600 | 89 | – | 1034 | 586 | 593 | 1149 | 375 | 320 | 600 | 350 | 775 | 6*1-8 | 10*⌀29.5 | 182 | 220 | 250 | 280 | |
450 | 438.2 | 635 | 89 | – | 1166 | 636 | 662 | 1281 | 375 | 320 | 600 | 400 | 775 | 6*1-1/8-7 | 10*⌀32.5 | 222 | 300 | 300 | 350 | |
500 | 489 | 715 | 114 | – | 1330 | 732 | 736 | 1460 | 460 | 395 | 600 | 450 | 900 | 8*1-1/8-7 | 12*⌀32.5 | 282 | 420 | 350 | 400 | |
600 | 590.6 | 840 | 114 | – | 1535 | 832 | 836 | 1665 | 460 | 395 | 600 | 450 | 900 | 8*1-1/4-7 | 12*⌀35.5 | 395 | 500 | 496 | 500 | |
750 | 743 | 985 | 117 | – | 1810 | 1040 | 986 | 1940 | 630 | 395 | 600 | 500 | 1027 | 10*1-1/4-7 | 18*⌀35.5 | 500 | 540 | 600 | 700 |