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  • Right-sizing pneumatic valves
    Determining flow capacity is a critical factor in valve selection. Directional-control valves are common in pneumatic systems. They control compressed-air flow to cylinders, rotary actuators, grippers, and other mechanisms in packaging, handling, assembly, and countless other applications
  • Simpler controls lead to lower-cost pneumatics
    Distributed control can cut system reaction time by 95%. DeviceLogix valve manifolds offer distributed control in DeviceNet networks, and can also be used in standaloneapplications. This modular Numatics manifold features a range of pneumatic valves, up to 96 inputs and 80 outputs, and is rated
  • Medical Device Link . Spotlight on Pumps and Valves
    Medical valves and flow control devices, including hand pumps and fittings, are supplied in a variety of materials and configurations. Pressure check valves are manufactured to tolerances that attain +-5%. Needleless check valves, y- and t-port valves, and valves for balloon catheters and other
  • Strategies/Operations - Valve Gate Sequencing Strategies, Part II - 09/05
    of this article we discussed independent valve gate control strategies. In Part II we will cover additional valve gates strategies and how these strategies can help mold builders and molders work together to develop a mold that will provide the most consistent performance. The mold the customer
  • Taking the Guesswork Out of Pneumatic Control
    or continuous cycling. Jog control lets users manually step through machine operations. This option can be added by controlling flow to limit valves (top) or adding a binary trigger (bottom). System shutoff prevents accidental machine operation. A shuttle valve to the pilot of a power valve lets
  • Hydraulic Speed Control
    and seal integrity. The piston-rod assembly returns when the load on the rod is released. A spring acts on the diaphragm to create internal hydraulic pressure, and oil passes through return-flow holes and unseats the check valve. Because internal pressure acts on a larger area of the piston side
  • Common Control Schematics
    A rapid loss of pipeline pressure creates a differential across the diaphragm in assembly (7) which causes the stem to move outward, and trips valve (8) closed. Vents the pilot of valve (19) and causes the operator to close.
  • Control Reliability - Beyond The Wire (.pdf)
    Picture this - your company has mandated that safety is priority one and that all new machinery must include the latest in safety equipment. Suppose the next purchase is a two-hand operator station for an automated assembly machine that incorporates a pneumatic cylinder that extends for parts hold
  • Compact yet perfectly matched ASHRAE Journal, July 2015
    ebm-papst is expanding their line of gas-air ratio control assemblies with the new NRV77 developed for high efficiency gas-fired boilers rated up to 35kW (120,000 BTU/H). The assembly includes a modulating premix ready gas blower, air-gas venturi, and zero-governor gas valve. All three components
  • Electropneumatic Cylinders
    Pneumatics is generally preferred for applications such as material handling, transporting parts, pick-and-place operations, and small-parts assembly. But, until recently, pneumatic systems were almost entirely limited to on/off control -- for example, pressure applied or not applied, or a cylinder

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