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Double Flange Mining Knife Gate Valve Bi - Directional Seal Full Port Air Operated

China TEKO Industry Co., Limited certification
China TEKO Industry Co., Limited certification
Dear Peter, Highly appreciate your sound service. The valves have well arrived and looks every well. Regards, Andrea

—— Mr. Andrea Arredondo

Hi, my friend. Finally we got the bidder and nice to cooperate with you.You prefession and quick reaction was the firm support for the business.

—— Mr.Hiep Le Hao



Good da, we just got the appoval from our customer. Your experiences helped a lot in the project. The final drawing is also very professional. Cheers!

—— Mr. Scott Hornick

compramos de TEKO desde 2011, continuaremos la cooperación. La calidad es buena y el precio es bueno.

—— Ing. Hugo Diaz

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Double Flange Mining Knife Gate Valve Bi - Directional Seal Full Port Air Operated

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Large Image :  Double Flange Mining Knife Gate Valve Bi - Directional Seal Full Port Air Operated

Product Details:
Place of Origin: Made In China
Brand Name: TEKO
Certification: CE Certificate
Model Number: PZ73X
Payment & Shipping Terms:
Minimum Order Quantity: 1 pcs
Price: By Negotiation
Packaging Details: By polywooden cases
Delivery Time: 15 days after deposite
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 50 tons per month
Detailed Product Description
Material: Ductile Iron, Stainless Steel Seat: NR, Rubber
Zero Leakage: Yes Drill Standard: ANSI DIN
Function: Abrasion, Slurry Operation: Manual, Pneumatic,Bevel Gear
End: Double Flanged
High Light:

pneumatic knife valve


cast steel valves

Double Flange Mining Application Bi-Directional Seal Full Port Air Operated Knife Gate Valve


TEKO Slurry Knife Gate Valve is built with fabricated body and features a heavy-duty of stainless steel blade. Removable seats on either side of the blade provide a bi-directional bubble tight seal with no metal parts in contact with the slurry.



  • Double seat design for heavy duty slurry service.
  • Ease of replacement of seat liners.
  • When open, the knife-gate is fully withdrawn from the slurry flow
  • No metal parts in contact with the flowing slurry.
  • Bubble tight shutoff
  • No clogged bonnet to impede flow.
  • External epoxy coated.
  • Easily adapted to suit most actuators.
  • Low maintenance requirements
  • Bi-directional flow
  • Suitable for wet or dry service
  • No Gland to maintain.
  • Wide range of elastomers available
  • No seat cavity where solids can collect and prevent full gate closure



Body Fabricated Steel

Natural rubber standard,

Nitrile, Viton, Butyl, Hypalon optional

Pressure rating 100psi for DN0 to DN400
150psi if 17-4PH blade is used (up to DN350)
Blade material



Hastelloy etc

End connection ANSI, DIN, JIS, BS etc.
Material certification Physical test report can be supplied


How the slurry knife valve works


Gate positioned above seals

Tight fit between sleeves and the internal sleeve profile contain the line pressure

Metal parts not in contact with slurry

Unobstructed port area eliminates turbulence, minimizes pressure drop across valve

No seal cavity where solids can collect and prevent full gate closure


Closed Position

Gate travels through sleeves to provide blind flange shut off and expel solids, allowing complete closure

100% isolation-bubble tight shut-off results in absolutely zero downstream leakage

Double-seated design provides bi-directional flow and shut-off

Sleeve profile and tight fit between sleeves and gate contains internal pressure

Controlled stroke prevents gate from penetrating too far, minimising stress on sleeve


Contact Details
TEKO Industry Co., Limited

Contact Person: sales

Tel: +8613660157288

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