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  • 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
  • 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
  • Taking the Guesswork Out of Pneumatic Control
    systems are often a good bet when a compact, economical unit is a must. They typically consist of a series of valves mounted onto standard manifold subplates. Such systems speed assembly and piping, and all interconnections between valves and controls in the circuit are machined into the manifold
  • Emergency Isolation for Pneumatic Actuated Control Valves
    Now any pneumatic control system can be designed to automatically shutdown in a local fi re or excess heat situation. The FireChek (R) can be installed on most fail-safe standard pneumatically operated process control valve actuator, either on/off or throttling. The enhanced FireChek assembly
  • 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.
  • 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
  • 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
  • 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
  • Plastic industry honors innovative parts
    ) and costs 46% less than a traditional SMC (sheet-molded compound) cowl assembly. The nylon stands up well to adverse weather, UV exposure, salt, fuel vapors, and oil. Sequential valve gating during molding reduces glass readthrough and warpage while improving surface finish so parts readily accept

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