Dmmond SR

Conventional Knife Gate

Reliable conventional knife gate valves for applications in different industries

Dmmond SR Conventional Knife Gate
At paravalves, every development has in-house engineering and manufacturing facilities for a wide range of industrial applications anywhere in the world.
We work from the delivery and dedication, from the person. Always open to any need, project, industry and customer. With the proactivity and intelligence necessary to face any challenge proposed to us. An engineering and manufacturing team that goes hand in hand with the customer, to always offer a reliable product, with high performance and durability.
Our conventional Dmmond SR knife gate valves are classified as follows, depending on their design pressure:

Beyond the valve

Paravalves Dmmond SR Conventional knife gate valves are engineered and built to work for light o heavy slurry service in the mining and mineral processing, power, pulp and paper and other industrial industries. Thanks to our top notch engineering team our SR type valves achieve a reliable shut-off, longer working life and lower cost of ownership and maintenance.  


Up to
In all sizes
Up to

Customized valves

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

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Zero atmospheric leakage.

Even for gas or high pressure water applications.

At paravalves Dmmond SR conventional 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.

Working under the most extreme condition Ni-Hard wear rings.

Protect the valve, work in any situation.

Ni-Hard wear rings or other special materials are available under request for extreme condition applications, ensuring best performance of the valve at heavy duty applications as well as a longer life for the equipment.

Stem extensions and flexible wall brackets available.

Adapt to any environment.

Different types of wall brackets, extensions, control turrets and other elements can be easily developed by the paravalves technical team to adapt the valve to the special needs of any customer.

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 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.

One design to rule them all.

Direct handwheel, Gearbox, Electric actuator, Pneumatic or Hydraulic cylinder actuation types are possible with Dmmond SR conventional 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.





Electric Bernard

Electric Bernard

Electric AUMA

Electric AUMA

D/A Pneumatic

D/A Pneumatic

D/A Hydraulic

D/A Hydraulic

Main features

Working pressures up to 100bar.

High flow rates and low pressure drops.

Different sealing systems.

Bonnet on request.

Deflector cones and reinforced rings on request.

Tailor-made solutions.

Epoxy coating for carbon steel components.

Sizes up to DN1400.

Bi-directional leakproof design.

Rising or non-rising stem design.

On/Off service.

ISO 5210 drillings for interchangeable actuators.

Pneumatic, Hydraulic, Electric or manual actuation.

Working temperatures up to 200ºC.

Flange drillings to most standards.

Special materials or treatments on request.

Robust and reliable design.

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.