Knife Gate Valves

Slurry Tuff has many years of industry experience when it comes to knife valves that are strong and reliable. Contact our team for more information or view more of our products.

DIRECTIONAL KNIFE GATE VALVES SERIES 762

DESIGN FEATURES  series 762 knife valve

Series 762 is a bidirectional heavy duty slurry
valve, designed for demanding high pressure slurry
applications. Twin elastomer seats and push-through
gate design facilitate self-cleaning and prevent media
build up.
The durable ductile iron body is offered in a two-piece
bolted flange style. When fully open, the valve is full
bore, offering no resistance to line media.

1 Upper and lower protective stem cover is
standard in all models, increasing cycle life in
hazardous environments.

2 Fully encapsulated J-ring providing sleeve
reinforcement and memory assist, guaranteeing
bidirectional zero leakage performance.

3 In the open position, the energized sleeves shield
all metal components from direct contact with
the flowing process media.

4 Gate available in a wide range of corrosion
resistant alloys to suit the pressure rating and
application.

5 The design provides unobstructed flow path,
extending sleeve life and minimizing pressure
drop across valve.

6 Flanged two-piece bolted body allows for easy
maintenance and is drilled and tapped to
country standards.

7 Optional bottom flush plate with tapped ports,
allows for safe discharge of media and easy flush
water connection.

8 Seat retainers are standard on all sizes and
are provided to ensure proper and uniform
compression is maintained on the seats.

 

INDUSTRY APPLICATIONS

Mining

>Primary Milling
>Process Pumps
> Primary Cyclone Power
> Secondary Cyclone Pulp & Paper
> Flotation Cell Alumina
> Thickener Chemical
> Filter Pump Cement

HPAL/POX

>Autoclave Application

Power

Pulp & Paper

Alumina

Chemical

Cement

 

BIDIRECTIONAL KNIFE GATE VALVES

 

DESIGN FEATURES                  knife valve

Engineered for bidirectional on/off service and
isolation of clean, dirty, corrosive, or viscous media.

1 Topworks designed for easy, quick conversion
between manual and pneumatic actuation.
Manual valves include a lubricant injection port
for continuous, smooth operation with minimal
maintenance.

2 Clevis design and horizontal bolting stabilizes
gate ensuring proper alignment.

3 Standard multi-layer square packing provides
exceptional gland sealing.

4 Optional energized quad seal packing for
enhanced gland sealing.

5 Chest liner for sizes up to 12″ and PTFE anti-
extrusion ring for sizes 14″ and up.

6 Unrestricted flow path with minimal

pressuredrop achieved through full port valve design.

7 Gate design ensures consistent alignment
throughout the length of the stroke.

8 Mechanically retained steel reinforced elastomer
seat ensures bidirectional zero leakage shutoff.

9 Cast yoke superstructure ensures robustness in
valve design for different operators/orientation.

 

INDUSTRY APPLICATIONS

Pulp & Paper

>Bleach Stock
> Brown Stock Washers | Pump Isolation
> Evaporators | Black Liquor
> Paper Stock

General Industrial

> Pneumatic Conveyance
> Raw & Treated Water
> Water Conveyed Solids

Power

> Fly Ash Pneumatic Conveyance Crossover Valve
Wastewater
> RAS Return Activated Sludge
> Pump & Equipment Isolation

Chemical

> Process Fluids
> Pump & tank Isolation

Ethanol

> Syrup Lines

 

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