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Pressure Valve Testing: Requiring Precise Force Control of Clamping and Holding Actuators for Pressure Testing

Challenge

A gas meter manufacturer needed a versatile linear actuation solution to clamp and hold gas meter housings for pressure testing. They required two clamping actuators per fixture to apply the proper force to seal the housing for pressurization without deforming or damaging it. They determined that hydraulic cylinders, or electro- mechanical actuators, could not be used on this clamping system due to the precise force control required and the concentrated loads that the actuators would experience.

Kyntronics Solution

  • Two pairs of Kyntronics, “Total Solution” electric linear actuators with force feedback, along with drives mounted to backplates.
  • Each pair of actuators was synchronized to clamp onto the test specimen at a precise force.
  • The system used Ethernet IP for communications with the customer’s control system.

Customer Benefits

  • A versatile solution that used precise force control to avoid damaging the meter housing while ensuring they were sealed effectively for the pressure test.
  • The electric actuation system eliminated the need for complex hydraulic components (flow dividers, relief valves, and check valves).

Application Requirements

Stroke: 2″
Speed: .7 in/sec
Force: 4,000 lbf.

Industries

  • Metal Products

Product Used:

  • Hybrid Linear Actuation System – Total Solution
  • Servo Power Unit Only
See the SHA Hybrid Linear Actuator Total Solution
Learn about actuation solutions for clamping
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