SAH High pressure push-through Knife

High pressure slurry knife gate valve solutions for the mining and mineral processing industry.


Push-through Knife Gate valve

Dmmond SA Push-through Knife Gate SAH High pressure push-through Knife

Slurry knife gate valves are specially made for the mining industry, for loaded fluid lines like sludge or abrasive services. Slurry knife gate valves performs also well for waste water treatment, pulp and paper industry, chemical plants, silo outlet and thermal power plants. The design allows flow media with high consistency either for normal or reverse flow due to the bi-directional double seat design. The high flow coefficient value of this knife gate valve provides high flow rates with low pressure drops.

The main characteristic of the slurry knife gate valve is that it provides a full continuous flow. In open position the two rubber wear-resistant sleeves are in close contact with each other preventing the flow get inside the valve body.

Customized valves

We design and manufacture customized solutions for each customer and need.

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Directives and standards

  • PED 2014/68/UE CAT-1 Module A.
  • 2014/34/UE CAT 3 ZONE 2 AND 22.


  • Working pressures up to 20bar / 285psi.
  • Sizes up to DN600.
  • High flow rates and low pressure drops.
  • Bi-directional leakproof design.
  • Removable sleeves.
  • Short or Long patter design.
  • Easy maintenance.
  • Rising or non-rising stem design.
  • Flushing cover included.
  • Robust and reliable design.
  • Taylor-made solutions.
  • On/Off service.
  • Flange drillings to main international standards.
  • Epoxy coating for carbon steel components.
  • ISO 5210 flange drillings for interchangeable actuators.
  • Special materials or surface treatments on request.
  • Pneumatic, Hydraulic, Electric or manual operation.
Push-through slurry knife gate valve high pressure 2
Push-through slurry knife gate valve high pressure detail
Slurry knife gate valve finite element analysis engineering
Push-through slurry knife gate valve high pressure
Push-through slurry knife gate valve high pressure front
Push-through slurry knife gate valve high pressure sleeves

More information

Download our technical catalog to learn more about this product.

Related industries

Over time, PARAVALVES team has had the chance to analyze not only the design of these valves but the specific applications they are used in as well in a cost effectiveness mind. From the pulp and paper industry and wastewater treatment to the mining industry, we’re confident the PARAVALVES Dmmond Series Knife Gate Valves will be a great solution for the following industries:


Can we help you with anything?

If you need a quotation for any of our products, have any questions, suggestions or want to distribute our valves, we will be more than happy to answer you.