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  SAMBO

  SAMBO SAMBO Gear Actuators are a favorite of Allied Valve technicians. Known for their quality, efficiency, and high performance, these gear boxes are suitable for gate valves, butterfly valves, ball valves, globe valves and others and include manual or motorizable … Continue reading →

• Actuator Repairs, Troubles, Failures? A Checklist.

  About a year ago, we published a blog post called 40 Reasons Your Actuator Isn’t Working. Since then, the article has generated thousands of views, and it continues to get hundreds more every month. While there may be 40 reasons … Continue reading →

• My Gate Valves or Non-Return Valves Won’t Shut Off. What are My Options for Repair?

  This is part of a series of articles addressing questions we get from our customers about valves and valve products. Read the previous articles here: How often should you repair or replace pressure relief valves? Answers to three common questions … Continue reading →

• What’s New in Actuator Design?

  As the industry works to tap new sources of energy and valve technology improves, so does the design of the actuators that power those valves. One could say that valves and actuators are a bit like cars and trucks — … Continue reading →

• How to Troubleshoot a Gas-Over-Hydraulic Actuator

  In systems where other supply lines are unavailable, gas-over-hydraulic actuators (also called gas-over-oil actuators) use gas to power the hydraulic actuator that operates the valve. They can be paired with linear or rotary valves, are available for both high- and … Continue reading →

• 40 Reasons Your Actuator Isn’t Working

  One of the top questions we get from customers is why an actuator isn’t working. Actuator troubleshooting is complex: depending on the type of actuator, the system, and other factors, there are many reasons actuators don’t perform properly. To help … Continue reading →