Smith Flow Control and Netherlocks have merged. We are now Sofis.

Ensure safe MOV testing and maintenance

Block physical valve movement to avoid accidental closing during valve testing or valve maintenance.

Safely maintain online MOVs with a bracket in maintenance-blocking mode

Avoid unwanted valve strokes during your valve maintenance work to critical actuators. With our IML actuator lock you ensure that valves remain in their fail-safe position.

  • Physically blocks valve movement
  • Set to maintenance mode with a dedicated operating key
  • Standard configurations according to ISO 5211
Go to actuator lock
Actuator lock for safe valve maintenance
Smith Flow Control and Netherlocks Safety Systems have merged. We are now Sofis.
Partial stroke test device for ESD and HIPPS valvesalves

Secure partial stroke testing of ESD valves

Test your critical MOVs online without the risk of overshooting the test angle. At the same time you can use the FAITH for online MOV maintenance.

  • Custom-built bracket and drive-bush
  • Available with any test angle, fully open or closed
  • Allows stroke testing complying with IEC 61508 and IEC 61511
Go to partial stroke testing

How can we help you?

Benefit from our knowledge and pioneering mentality in optimizing valve operations. We have extensive application expertise and over 30 years of field experience and project management skills within a global team of engineers. Please let us know what kind of support you need and we will get back to you with a fast and accurate response.

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Call directly +31 (0)172 471339