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 styleNarrow 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
IDODWLHH1H2H3H4H5ABBORE
SIZE
CN*M(UNC)N*ØMH
kg
BG
kg
AC
kg
HC
kg
5050.8160300484053131952173912752103001405572*5/8-112*⌀1812232530
8076.2190300514623612252424392752103001605572*5/8-112*⌀1816263050
100101.6230350515054112452674892752103001605572*5/8-112*⌀1820304860
125125255350575444502602985282752103002005572*3/4-106*⌀22303950100
150152.4280400576185102703206002752105002007222*3/4-106*⌀22355575111
200203.2343400707106063454026962752105002507222*3/4-106*⌀22607090120
250254403550708157323954608223372105002807224*7/8-96*⌀268590120140
300304.8483768404755209303372336003007224*7/8-96*⌀26101120160180
350336.65357692052553610353372336003207224*1-88*⌀29.5134150180200
400387.460089103458659311493753206003507756*1-810*⌀29.5182220250280
450438.263589116663666212813753206004007756*1-1/8-710*⌀32.5222300300350
500489715114133073273614604603956004509008*1-1/8-712*⌀32.5282420350400
600590.6840114153583283616654603956004509008*1-1/4-712*⌀35.5395500496500
750743985117181010409861940630395600500102710*1-1/4-718*⌀35.5500540600700