Dart control valves for use in mines

February 2002 Analytical Instrumentation & Environmental Monitoring

Mitech designs and manufactures its own dart valves in-house according to the specifications of the client. The plug and seat can be made from various materials but the most popular is polyurethane, which is particularly good on abrasive applications at temperatures up to 60°C. These dart control valves are used mainly on cyclone and flotation cells at gold mines and platinum mines to control the level of solution in the tanks.

Stainless steel mounting bars are used to raise the actuator (double acting or spring return) out of the medium. A major feature of the design is that it is totally self-contained which means that the whole unit can be changed quickly and easily. The plug head is guided between the three mounting bars that eliminate the need for shaft guiding.

Many different actuator options are offered such as hand wheel override or electro-pneumatic or pneumatic positioners. An anti-clogging design plug (profile on back end of plug) for flow over applications can be fitted. Dart valves can be either flow over or flow under depending on the application.

Mitech

011 462 2160

[email protected]

Further reading:

Elevating mining separation processes through precision instrumentation
Endress+Hauser South Africa Analytical Instrumentation & Environmental Monitoring
In mining operations, the quest for efficiency and productivity is key. There is an urgent need for innovative solutions to enhance the performance of extraction processes while balancing operational costs and environmental impact.

Read more...

---

Alfa Laval launches next generation
Analytical Instrumentation & Environmental Monitoring
Alfa Laval has launched Clariot, a next generation, AI-based condition monitoring solution, precision-built for hygienic process equipment to deliver more accurate analysis and support.

Read more...

---

The next generation in metal sorting
Mecosa Analytical Instrumentation & Environmental Monitoring
In the metal recycling industry, companies are increasingly challenged to not only improve the efficiency of their processes but also to raise the quality and purity of the sorted materials to new levels. By integrating proven spectral analysis technology into its market-leading REDWAVE XRF sorting system, REDWAVE is unlocking new opportunities for metal recycling, particularly in aluminium recovery.

Read more...

---

Ensuring clean and safe water
Endress+Hauser South Africa Analytical Instrumentation & Environmental Monitoring
Endress+Hauser’s comprehensive range of disinfection sensors are designed to monitor and control disinfectant levels in water treatment processes.

Read more...

---

Inline OCR measurement systems for real-time oil monitoring in refrigerants
Analytical Instrumentation & Environmental Monitoring
[Sponsored] Anton Paar’s L-Sonic 6100 offers a reliable, real-time inline measurement solution for monitoring the oil circulation ratio in cooling and refrigeration systems.

Read more...

---

Anton Paar launches inline refractometers for precision Brix monitoring
Anton Paar Analytical Instrumentation & Environmental Monitoring
[Sponsored] Anton Paar has introduced innovative inline refractometers that are designed for continuous Brix concentration monitoring in metalworking machines, fruit and vegetable processing and other industrial processes.

Read more...

---

Supporting fast, safe helicopter service across Sweden
ATEQ South Africa Analytical Instrumentation & Environmental Monitoring
In an environment with high risks and fierce competition, Storm Heliworks’ fleet of eight helicopters operates on assignments throughout Scandinavia. Maintenance is critical, and the company recently invested in a battery charger analyser from ATEQ Aviation.

Read more...

---

WearCheck introduces advanced Legionella testing to safeguard water quality
Wearcheck Analytical Instrumentation & Environmental Monitoring
WearCheck Water has expanded its expertise in water analysis with the introduction of Legionella pneumophila detection and enumeration. This positions the company at the forefront of water and surface safety monitoring, ensuring businesses, industries, and public institutions can proactively manage legionella contamination risks.

Read more...

---

Silo weighing made easy - new mounting kit for load cells
Analytical Instrumentation & Environmental Monitoring
The PR 6003 mounting kit features fast commissioning in demanding applications in industrial silo weighing. It combines maximum accuracy with maximum safety in a compact system.

Read more...

---

Inline beverage analyser leverages advanced multi-parameter technology
Analytical Instrumentation & Environmental Monitoring
[Sponsored] The Cobrix 7501/7601 inline beverage analyser leverages advanced multi-parameter technology to enhance quality control in carbonated soft drink production.

Read more...

---