FPV

High-Pressure Slurry Knife Gate Valve

The High-Pressure Slurry Knife Gate valve is a true bi-directional slurry knife gate valve. Its rubber sleeves are designed to seal and withstand the harsh abrasive duty inherent in mining & milling facilities. Isolation is provided by the gate passing through the sleeve in such a manner that any solids that could potentially clog or jam the blade are pushed out to atmosphere through the bottom of the valve housing.

Product features

Specifications
Size range:3″ – 36″ (80mm – 900mm)
Valve type:Slurry knife gate (high pressure)
Body styleFull flanged
Temperature range:176°F (80°C)
Pressure rating:Up to 740 psi (51 bar)
Body material:Cast ductile iron, 2 coat epoxy painted
Gate material:17-4PH Stainless Steel, 316L Stainless Steel, 2205 Duplex Stainless Steel, 2507 Duplex Stainless Steel, C276 HASTELLOY
Gate/blade:Coated with fluoro-carbon coating
Sleeve Material:Gum rubber, high-temp EPDM, Neoprene, Nitrile, Chlorobutyl
Duty:Medium to heavy abrasive applications
Hydro-static test:1.5 Times the rated pressure

Features
  • 100% bubble tight shut off.
  • Bi-directional operation at 51 bar.
  • CNC machined gate guide & body.
  • Double seat design for heavy-duty slurry service.
  • Fluorocarbon-coated gate to reduce.
  • Flush ports in the valve body.
  • friction and increase wear life on sleeves.
  • Full port & Bi-directional.
  • Heavy-duty stainless steel gate.
  • Imperial and Metric flanged patterns.
  • Low maintenance requirements.
  • Lubrication ports.
  • Manual lockout.
  • Protective spindle cover & bellows.
  • Stuffing box with gland follower.
  • The open body allows for purging.
  • Two coat Epoxy paint.
  • Two-piece body.
  • Universal tower frame.
  • Zinc nickel-plated hardware.

Advantages of Rubber sleeves

Designed specifically for heavy-duty slurry applications, the sleeves are easily replaced in the field, prolonging valve working life. Sleeves provide a 100% bubble-tight seal and rely on the pressure between the sleeves to seal. The sleeves are bi-directional and have an internal stiffening ring.

Applications

The valve is suited for mining and mineral processing, power generation, sand/gravel, chemical & soda ash, pulp & paper, environmental & effluent, dry feeds, coal, alumina, phosphate & general industry.

Actuators

All types of actuators can be fitted; electric, gearbox, hydraulic, pneumatic and handwheel. (Choice of an operator is based on valve size & pressure.)

Accessories

  • Deflector cone
  • Gate safety guards
  • Limit switches
  • PTFE blade coating
  • Various blade materials

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
ABCDEFGHJKLAC
kg
HC
kg
MH
kg
BG
kg
801761562736527166730062430062236850505065
1001761813187229571430068330068636870607280
150184210381948148968300889300905368174150154180
2001842444571099197111850010295001037424340180203230
250227294521131424813345005001260492500280350
300259330616148529815025001451492650375480
350260378699164833016866001626492578650
400279400762191038119686001800559800880
450321450800****950
500368500890****1320
600368590950****2500
6503686201100***2750
7504136831359318531853000
9004707871575379737973800