Dmmond SA
Push-through Knife Gate valve
specially engineered to last in extreme working conditions for abrasive fluids in the mining industry.
Beyond the valve
Paravalves Dmmond Push-through knife gate valves are engineered and built to handle extreme working conditions for abrasive fluids and high pressure services. In addition, our SA Type push-through knife gate valves provide a bubble tight shutt-off and extended service life for the most demanding mining and mineral processing applications.
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. Installation of this equipment is done between pipeline flanges, which flange drilling can be made according to customer specifications or Paravalves standard.
Customized valves
We design and manufacture customized solutions for each customer and need.
View moreZero atmospheric leakage.
Even for gas or high pressure water applications.
At paravalves Dmmond SA push-though knife gate valves special top gate sealing concept is designed to ensure full tightness to the atmosphere even for gas or high pressure water applications.
Every design is fully hydrostatically tested at our facilities according to API 598, testing body cavity at 1.5 times the design pressure.
True bi-directional zero leak shut-off.
Where body avoids flow abrasion.
The design allows flow media with high consistency either for normal or reverse flow due to the bi-directional double seat design.
The main characteristic of the slurry sleeved 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.
Engineered to last.
Even for extreme working conditions with abrasive fluids.
From optimized parametric design 3D modeling tools, to Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) systems, our reliable push-though knife gate valves are ready to be manufactured with confidence.
Every component is designed and validated by top-notch softwares by the paravalves engineering team.
Integral flange seals.
Designed to avoid using flange gaskets in the pipeline.
The knife gate rubber sleeves have been designed to avoid using flange gaskets in the pipeline. Its unique design provides a integral flange seal ensuring no leak between the knife gate valve and the pipeline.
Installation of this equipment is done between pipeline flanges, which flange drilling can be made according to customer specifications or paravalves standard.
Replaceable Rubber sleeves.
Easily replace the snap-in sleeves.
The top quality sleeves can be easily replaced on field for the knife gate. A wide range of materials are able to withstand abrasive flow medias and can give a great wear resistance performance for severe service applications.
Our unique sleeves have been performed as precision molded elements with high strength rubbers to protect the wetted parts from corrosion and abrasion.
Easy maintenance. A cost-effective solution.
Body protected for a longer valve life.
The monoblock body construction and the snap-in sleeves design allows maintenance to be an easy work that can be performed on field. There is no need to return the valve to factory for repair as a sleeved solution can be replaced on-site.
One design to rule them all.
Direct handwheel, Gearbox, Electric actuator, Pneumatic or Hydraulic cylinder actuation types are possible with Dmmond SA Knife Gate Valves. The design allows actuators to be interchangeable each other even without removing the valve from the pipeline. It most cases, drilled according to ISO 5210 standard.
Handwheel
Gearbox
Electric Bernard
Electric AUMA
D/A Pneumatic
D/A Hydraulic
Main features
Operating pressures up to 50bar.
Sizes up to DN1400.
Low pressure drop.
Bi-directional leak-tight design.
Replaceable spindles.
Rising or non-rising spindle designs.
Robust and reliable designs.
Customised designs on request.
For On/Off services.
Flange drilling according to international standards.
Different connection types.
Epoxy paint for carbon steel components.
Actuator connection (interchangeable) according to ISO 5210.
Pneumatic, hydraulic, electric or manually operated actuator.
Special materials and surface treatments on request.
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:
More information
Download our technical catalog to learn more about this product.
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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.