Dmmond ST
Through Conduit Knife Gate Valves
Solid and reliable performance through conduit knife gate valves for the pulp and paper industry.
ST Through Conduit Knife Gate Valves
Beyond the valve
Through conduit knife gate valves are specially made for the pulp and paper industry, for pulp outlets or under silo applications. 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 two-piece construction bolted body retains a gate that contains a round openning inside that is able to cut the flow for the required charged liquid applications. When the opening of the gate is aligned with the opening of the split-bodies, the valve is opened. The gate closing principle is similar to the functioning of a «cigar cutter».
Installation of this equipment is done between pipeline flanges, which flange drilling can be made according to customer specifications or PARAVALVES standard. Face to face determines the distance between flanges and this can also be taylor-made to comply with customer project. ButtWelding ends can also be supplied on request.
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 ST Through-conduit 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.
Designed to cut through the fluid.
Perforated knife gate system for an optimum performance.
The two-piece construction bolted body retains a gate that contains a round openning inside that is able to cut the flow for the required charged liquid applications. When the opening of the gate is aligned with the opening of the split-bodies, the valve is opened. The gate closing principle is similar to the functioning of a «cigar cutter».
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.
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 ST through-conduit 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
Working pressures up to 10bar.
Sizes up to DN1400.
Seat designed according to the application.
High flow rates and low pressure drops.
Bonnet on request.
Flushing/plug ports included.
Uni or Bi-directional leakproof design.
Easy maintenance.
Rising or non-rising stem design.
Robust and reliable design.
Tailor-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.
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.