4th Quarter 2017Electrical switching & drive systems & components
New to the Sun Hydraulics cartridge portfolio and FLeX Series family are four new 350 bar solenoid operated relief valves. With a 2-stage, field adjustable design, they offer precise and dependable pressure regulation with up to 100 l/min flow rates. These RVC valves are the only family of valves on the market that offer fully adjustable, ventable and blockable relief functions. They are ideal for fixed-displacement pump applications.
The RVC valves are designed to reduce the complexity and improve the reliability and safety of flow systems. They are 2-stage, balanced piston reliefs. In relief mode, the valves open to tank (port 2), throttling flow to regulate the pressure when the pressure at the inlet (port 1) reaches the valve setting, which is adjustable. Energising the solenoid activates or deactivates the relief function.
Designed and tested to 10 million operational cycles at full rated pressure, these reliable new relief valves come in four options:
• RVCK: Normally vented, energise to relief.
• RVCL: Normally in relief, energise to vent.
• RVCM: Normally in relief, energise to block.
• RVCN: Normally blocked, energise to relief.
Reducing complexity: The valves combine the functionality of two valves into one body and one cavity, reducing materials and creating a more compact and efficient system.
Improving reliability: The main stage orifice is protected by a 150 micron stainless steel screen for extended product life.
Improving safety: The adjustment screw is leak free and contains a mechanical stop to prevent the screw from backing out, offering safe, reliable field adjustment.
Designed with applications in mind
Across the board, the unique design of the RVC family can reduce complexity in mobile and industrial hydraulic systems. The 2-stage design combines two cartridges in one, reducing complexity and overall cost.
The valves are also ideal in fixed displacement pump applications. Each model in the RVC valve family presents a distinct advantage to specific hydraulic systems and applications:
• RVCK: Use for pump start-up to unload until pressure is built, eliminating stress on the system, then energise during operation.
• RVCL: Allows the user to energise at start-up and de-energise during operations to keep power consumption lower during use.
• RVCM: Ideal in circuits that require two pressure settings, one with a high setting at acceleration, and one with a setting that is constant. The blockable RVCM regulates pressure throughout.
• RVCN: Use the relief function to preload the cylinder and avoid decompression shock in systems built for high capacities.
The FLeX advantage
These solenoid-operated relief valves add to Sun’s existing FLeX Series of directional control valves and proportional flow control valves.
Like Sun’s other FLeX products, these new relief valves offer the same quality, durability and cost-competitiveness. Typical features of the FLeX range are:
• High reliability: They are designed and tested to 10 million operational cycles at full rated pressure.
• Zinc-nickel plating standard: This gives up to 1000 hour salt fog protection.
• Interchangeable coil options: FLeX valves have the 740 Series high power and 747 Series hazardous location coils in a range of coil terminations and voltage options.
• High performance: They are available in 60 l/min and 100 l/min nominal flow rates.
As Sun continues to grow its FLeX Series, the same goal remains – to provide high performance solutions at cost-effective prices.
New generation low power frequency inverters Bearing Man Group T/A BMG
Electrical switching & drive systems & components
New to BMG’s electromechanical range are energy-efficient Synergy PI150 series frequency inverters, which have been designed for efficient use in many applications.
Read more...Planar motor system for quality assurance Beckhoff Automation
Editor's Choice Electrical switching & drive systems & components
Achieving the shortest possible inspection times, even when working with different components, is paramount when it comes to series production. This is precisely what special machine builder, stoba Sondermaschinen set out to achieve with its InspectorONE optical inspection system, which is based on deep learning and features the Beckhoff XPlanar planar motor system at the conveyor system core.
Read more...Siemens elevates automotive and aerospace simulation Siemens South Africa
Electrical switching & drive systems & components
Siemens Digital Industries Software has announced the latest update to its Simcenter portfolio, delivering advancements in aerostructure analysis, electric motor design, gear optimisation and smart virtual sensing. These enhancements are designed to streamline workflows, accelerate certification and provide deeper insights into system performance.
Read more...Turbomachinery controls: the call of duty Schneider Electric South Africa
Electrical switching & drive systems & components
There’s a lot to be said about the unsung heroes of this world; those men, women and machines that deliver such important functions, often overlooked and recognised. One such machine is turbomachinery, and while the name does sound quite obvious to the layman, its rich history and daily functions are not.
Read more...More movement in the market
Electrical switching & drive systems & components
Aerotech aims to revolutionise the market for precision motion and machine controls with an intuitive control platform.
Read more...Motion technology for all types of automation Bearing Man Group T/A BMG
News & events Electrical switching & drive systems & components
BMG has been appointed by The Timken Company as a distributor in southern Africa for the Rollon linear motion guidance system.
Read more...Servo motor series for explosive environments with expanded certification Parker Hannifin - Sales Company South Africa
Electrical switching & drive systems & components
Parker Hannifin’s ongoing commitment to safety and performance in hazardous environments is evident in the new certifications and product improvements for its EY and EX servo motor series.
Read more...The world’s most powerful worm
Editor's Choice Electrical switching & drive systems & components
Geothermal energy from the natural heat of the Earth is an inexhaustible resource, yet the growth of the global geothermal power sector lags behind other renewable energies. Now Swiss startup, Borobotics is hoping to speed this up with its innovative new electric-powered geothermal drilling robot, which can be used to fast-track and lower the cost of heat pump installations in confined spaces.
Read more...The impact of gearless mill drive technology on CO2 emissions
Electrical switching & drive systems & components
ABB has released an in-depth white paper detailing the vital role that gearless grinding technologies can play in driving productivity in mining while simultaneously reducing their carbon footprint.
Read more...Problem solving under pressure Axiom Hydraulics
Editor's Choice
The greatest strength of Axiom Hydraulics lies in the company’s ability to solve complex problems and adapt systems to meet unique challenges. This capability stems from two key factors: the diverse experience of its team members, which spans decades across multiple disciplines, and their unwavering dedication to their clients.
printer friendly version