In many industrial settings, air flow control is an issue that ought to be addressed. Pneumatic valve actuator products are a great way to control air flow and prevent leakages, which in turn will save time and money. For the latest news and information on pneumatic valve and pneumatic valve actuator innovation, browse the articles below.
New Large Diameter Butterfly Valves Up To 24 Inches
GF Piping Systems has announced expansion of its large diameter size range for the Wafer Style Type 567 Polypropylene Butterfly Valve to include sizes 14 to 24 inch. This completes the large diameter size offering of 12 to 24 inch and broadens suitability for a wider range of applications. Like the proven smaller sizes in the series, the new larger sized valves feature the double eccentric design, corrosion resistance and complete modularity for easy interchangeability.
The Type 567’s double eccentric off-center design allows the disc to completely disengage from the disc seal, even when partially open. This separation between disc and seal reduces friction and wear for longer service life and minimizes maintenance compared to non-eccentric valves. Additionally, the double eccentric design requires only about half the torque of a traditional boot design, which also reduces wear on the disc seal to further enhance product life. Other advantages of the design include easier manual operation, compatibility with smaller actuators for reduced installation cost and better protection against pressure surges.
These butterfly valves weigh approximately 50 percent less than comparable metal butterfly valves thereby providing easier and faster installation and lower costs. The new large dimensions provide high nominal pressures for increased operation safety. Pressure ratings at 70F are 90 psi for sizes14 to 16 inch, 75 psi for size 18 inch, and 60 psi for sizes 20 to 24 inch. Other features include industry-standard ISO flange mount for easy electric or pneumatic actuation, bi-directional capability and hand wheel. The valve is available with either EPDM or FPM seals, 304 or 316 stainless-steel stem and a Polypropylene body.
www.us.piping.georgefischer.com
Compact 3-Way Ball Valve Operates To 1,500 PSIG
W.E. Anderson Division of Dwyer Instruments, Inc., announced the release of its new Seires 3MSV Compact 3-Way Ball Valves.
The Series 3MSV Compact 3-Way Ball Valves are the perfect choice for directional control of fluid in instrumentation and process systems. The micro finished ball and PTFE seats ensure quality seal and easy operation. The straight through flow path design allows for minimal pressure drop. The valve body comes in either brass or 316 stainless steel, offering a variety of options. Blow-out-proof ball and stem provides extra durability and safety in the event of over pressure.
Direct Acting Solenoid Valves Have Higher AC & DC Pressure Ratings
ASCO introduced its 8262/8263 Series two-way and 8314 Series three-way direct acting solenoid valves with increased AC and DC pressure ratings and real-time online configuration and ordering. The two-way valves are ideal for applications in industrial and agricultural machinery, food products machinery, laundry and dishwashing appliances, and medical and analytical instruments. The three-way valves are ideal for process valve automation, fluid diversion, fluid mixing and piloting applications.
These valves are engineered with higher pressure ratings for AC and DC operation that enable original equipment manufacturers to achieve higher performance from their products. In addition, with the modular product architecture, a Web-based configuration tool, online ordering, and the ASCO Today guaranteed same-day shipping program, customers can rapidly configure and purchase an 8262/8263 or 8314 Series valve specifically for their application and receive it the next day.
The 8262/8263 Series valves come in brass and stainless steel constructions with 1/8-inch, 1/4-inch, and 3/8-inch pipe sizes and are used to control the flow of air, water, light oil, and specialty media such as cryogenic fluids, ammonia, oxygen, and liquid propane. The 8314 Series valves come in brass and stainless steel constructions with 1/8-inch and 1/4-inch pipe sizes and are used to control the flow of air, water, and light oil.
The online configuration tool allows a customer to quickly build a valve to meet a set of specific requirements. It then displays the list price, availability, 3D CAD drawings, and specifications for the configured product. The configurator generates an order code for the valve that permits an immediate online purchase, plus greatly simplifies the reordering process.
Pneumatic Valve Manifold System Features Uniform Interface
Series HF02-LG pneumatic valve system from Rexroth with uniform interface
Thanks to its high level of modularity, the new HF02-LG can be integrated in a wide variety of automation concepts.
The HF02-LG series from Rexroth rounds out its standardized range of HF valve manifold systems with a weight-optimized base plate valve featuring high flow rates. The dependable HF family is now available with flow rates of 0.4Cv, 0.7Cv, and 1.4Cv and can be actuated with just one bus connection for all series.
The uniform connection technology for Rexroth valve manifold systems simplifies integration of pneumatics in a wide variety of automation concepts. Thanks to its modular design, the system enables use of multiple plugs and connections for all common field buses, with and without I/O signal processing and supports an integrated Drive & Diagnostic Link. The uniform interface for common field bus control (B-design) permits a simple and clear combination of various valve manifold systems, as well as standardized programming.
The new HF02-LG valve manifold system benefits from a free selection of connection technology. With a flow rate of 0.4Cv with a valve width of 20 mm, the system can accommodate up to 16 valve positions in one unit. An exceptionally modular design makes it possible to change the electrical controller without having to disassemble the valve manifolds. Electrical linking with other valve manifold systems, such as the HF03-LG and the HF04-XF, or individual valves, is simple using Rexroth’s module extension.
Robust parallel plug connectors in the base plates facilitate conversion of an HF02-LG valve unit and the plug-in valve makes it possible to exchange valve functions quickly and easily. Another special feature is that the customer can convert the pilot from an internal pilot control to an external pilot control directly on the left end plate.
The HF02-LG provides all valve functions: 2 x 3/2, 5/2, and 5/3. Dual-pressure operation is possible using separate exhaust connections for channels 3 and 5. Pressure zones can be limited to one valve. In principle, the valve manifold system has been designed for an internal working pressure of 36 to 145 psi and can be operated in a temperature range of 32 to 122°F. Up to 32 coils can be actuated with the 44-pin D-Sub high-density plug.
Rexroth provides a user-friendly configurator to assist designers who would like to integrate this valve manifold system in their installation. This online tool lets you easily configure valve units with all their accessories and displays them with a pneumatic circuit diagram or dimensional drawing. The latest enhancement: The user can download the configured unit as a 3-D PDF in which the unit can be rotated on the screen and viewed from all sides.
The HF02-LG valve manifold system is ideal for applications requiring a high level of modularity, such as in machine tools, special-purpose machines, welding technology, or polymer processing.
Valve Positioners For Pneumatic Actuators
August 2, 2010 by admin
Filed under Actuators, Equipment, Positioning sensors, Valves
Spirax Sarco’s EP5 and PP5 control valve positioners operate on the balanced forced principle providing a tested solution for accurate control valve positioning. Both types are simple to commission and maintain with a low air consumption and 0,2 to 1,0 bar and 4-20 mA input signal options.High Cycle Vacuum Valve Suited For 10 Million Cycles
MKS Instruments Inc. introduced the High Cycle Valve, a small, light and durable vacuum valve for demanding applications where the cycle life is critical. Rated for 10,000,000 cycles, the compact valve greatly increases system uptime and minimizes maintenance costs. A new formed stainless steel bellows prevents outgassing, virtual leaks and particle entrapment, ensuring easy maintenance and extending the cycle life of the valve.
The High Cycle Valve is available in angle, inline and internal-only configurations, for ease of integration into new tool designs. High flow port sizes, including NW25, NW40 and NW50, use maximum internal diameters for greater conductance. Internal configurations can be used to integrate directly into the product, such as a load lock chamber, reducing the footprint of new tools. The TIG fusion welded vacuum grade body creates fewer entrapment areas, resulting in less contamination build-up.
The High Cycle Valve is available with an air solenoid for electro-pneumatic control of the valve and a limit switch assembly for remote indication in the open or closed position. In the event of power loss, the valve will automatically close. For leak tight operation, elastomer seals are available in Viton® for typical vacuum operating conditions, or Kalrez or Chemraz for higher temperature conditions and increased chemical resistance.
Air & Dry Gas Solenoid Valve Only Use 0.65 Watts
Gems Sensors & Controls introduced the energy-efficient E Series family of pneumatic solenoid valves. E Series solenoid valves are specifically engineered for air and dry gas applications, and feature a low power consumption of just 0.65 Watts. A nickel-plated body and coil housing construction produces a highly durable, corrosion resistant valve. Featuring a fast response time, with high-pressure and high-flow capabilities, E Series solenoid valves are ideal for application in medical and respiratory healthcare devices, printing machinery and sorting equipment, automated packaging equipment, or air monitoring systems.
E Series solenoid valves feature a compact cylindrical body, with diameters less than ¾-inch (19 mm), and lengths under 2 inches (50.8 mm). Seal and o-ring options include Viton®, nitrile and EPR and silicone.
They are available in multiple 2- or 3-way configurations including Normally Open, Normally Closed, and Multi-purpose and Directional Control 3-way models. E Series valves offer orifice sizes ranging from .032 to .078 inch (.81 to 1.98 mm), and port configurations that include #10-32 straight thread, M5 x 0.8 threads, manifold mount and bottom under-seat port.
Check Valve Assembly For Full-Power Brake Systems
NORTH MANKATO, MN — MICO, Incorporated introduces a Check Valve Assembly for Full Power Brake Systems. It is a compact manifold assembly that includes a check valve and an inverted shuttle valve. The assembly supplies fluid for two separate accumulator circuits while reducing the necessary number of system components and limiting plumbing and hardware requirements.
The Check Valve Assembly is ideal for full power hydraulic brake systems that must store energy in two separate accumulator circuits. It features high flow capacity up to 11 gallons per minute and a maximum operating pressure of 3,625 PSI. Among the potential applications are split systems with a pressure-compensated pump, and electrohydraulic accumulator charging controlled by a pressure transducer at the unit’s switch port.
Pressure is supplied to two accumulators by the assembly’s inlet port. The inverted shuttle valve isolates the higher pressure of the two accumulator circuits, while directing the lower pressure to the switch port. A check valve prevents pressure at the switch port from leaking back to the inlet port.
By combining the functionality of multiple components into a single housing, the Check Valve Assembly decreases costs and time required for installation. Its design also reduces potential leak points and contains possible failure points for the hydraulic system. The assembly limits check valve leakage to a maximum of 0.25 cubic centimeters per minute at 3,500 PSI.
MICO, Incorporated
www.mico.com
Pneumatic Valves Show 100 Million Life Cycle
Swagelok Company announced that additional testing has demonstrated an increase in cycle life for its Swagelok ALD series valve, up to 100 million cycles. The ultrahigh-purity, pneumatically actuated valve is designed for use in atomic layer deposition (ALD) processes – a staple deposition technique in the semiconductor industry.
Enhanced cycle life for ALD valves is meant to strengthen efficient manufacture of key components from transistor gates and DRAM dielectrics to gallium arsenide nanostructures in photovoltaic cells.
Since its introduction in 2004, Swagelok ALD series valves have been used for UHP applications requiring rapid, precise actuation speeds. The series features valve actuation times less than 5 milliseconds and a factory-set flow adjusting mechanism for precise, consistent Cv, which enables consistent delivery of process gas. The valve’s demonstrated cycle life was previously 50 million cycles.
Ozone-Resistant Vacuum Valve For Harsh Semiconductor & Solar Processes
MKS Instruments, Inc., has introduced a series of Corrosion and Ozone Resistant Valves, designed for longer life in extremely harsh semiconductor or solar processes. The valves feature patented technology that completely seals off the valve bellows, keeping reactive and corrosive gases such as O3, NF3 and CL2 from contacting and collecting on the bellows surface when the valve is open. Extremely durable and dependable, the Corrosion and Ozone Resistant Valve has a small profile and is low in cost. The bellows-sealed poppet valve ensures high cycle life and easy maintenance.
The Corrosion Resistant Valve is available in angle and inline configurations, for ease of integration into new tool designs. High flow port sizes, including NW40 and NW50, use maximum internal diameters for greater conductance. For leak tight operation, elastomer seals are available in Viton® for typical vacuum operating conditions, or Kalrez®, Chemraz® or Perlast® for higher temperature conditions and increased chemical resistance. The Corrosion and Ozone Resistant Valve is available in 6061 aluminum, and 304 and 316 stainless steel materials, to minimize corrosion. The TIG fusion welded vacuum grade body creates fewer entrapment areas, resulting in less contamination build-up.
The Corrosion Resistant Valve is available with an air solenoid for electro-pneumatic control of the valve and a limit switch assembly for remote indication in the open or closed position. In the event of power loss, the valve will automatically close.
