1.      DOES THE ACTUATOR CLOSE UPON POWER FAILURE?

ANSWER - Only if the user has a power failure relay connected to the actuator.  The actuator is battery operated and will automatically close when the battery low voltage is detected internally.  When low battery voltage is detected, the actuator closes the valve and turns itself off.

2.      WHAT IS THE LIFE OF THE INTEGRAL LEAK DETECTOR?

ANSWER - The leak detector should last approximately two years with minimal exposure.  Lifespan is proportional to exposure.  Warranty is for one year from purchase with normal conditions.  Warranty will not cover a sensor that has been "burned-out" from continuous heavy exposure.

3.      CAN I GET INPUTS AND OUTPUTS FOR SCADA WITHOUT REMOTELY OPENING THE VALVE?  I DO NOT WANT TO REMOTELY OPEN THE VALVE.

ANSWER - YES.  The motherboard inside the enclosure has a switch to disable the remote open function.

4.      HOW DO I CALIBRATE THE LEAK SENSOR?

ANSWER - The motherboard inside the enclosure has a switch to enable sensor calibration via the digital display.  Shutdown set points are adjustable with the display panel.  The sensor must be exposed to a known concentration of gas for reference.  This is accomplished by using a cylinder of calibration gas or with a specific gas calibrator.  Contact the factory for more details. 

5.      THE EXTERNAL METAL PARTS ARE NOT PAINTED.  ARE THEY CORROSION RESISTANT?

ANSWER - YES.  The external metal components are 316 Stainless Steel.

6.      HOW DOES THE ACTUATOR CONNECT TO THE CHLORINATOR?

ANSWER - IT DOES NOT.  The actuator is designed to connect to the valve without interfering with any of the existing equipment, including vacuum regulators, isolation valves, yokes, flexible connectors or piping.  The actuator opens and closes the cylinder valve only.

7.      HOW DO I CLOSE THE VALVE IF THE ACTUATOR FAILS?

ANSWER - We hope that doesn't occur.  But, if it does, the actuator can be removed in less than 5 seconds.

8.      YOUR MODEL U SPECIFICATIONS INDICATE USE WITH 2000 POUND CONTAINERS. CAN THE MODEL U BE USED FOR TON CONTAINERS?

ANSWER - YES. Our intent is to furnish the user with an actuator that does not interfere with existing equipment, such as a vacuum regulator mounted on the valve. The Model U150 and the Model 2000C meet those requirements. However, the Model U2000 may be the preferred actuator for ton containers if container mounted vacuum regulators are not used and withdrawal from only one container valve is required.

9. SOME SPECIFICATIONS REQUIRE THE CYLINDER VALVE PACKING NUT TO BE EXPOSED TO ALLOW TIGHTENING WHILE THE ACTUATOR IS MOUNTED TO THE VALVE. WHY CAN'T YOUR ACTUATOR MEET THOSE SPECIFICATIONS?

ANSWER - The packing is "downstream" of the valve seat. If the packing should leak, the valve should be immediately closed prior to tightening the packing nut. If a packing failure were to occur while tightening the packing nut with the valve open, the operator/mechanic would have created an "emergency" and may not be capable of escape without bodily injury. It is always safer to tighten the packing nut when the valve is closed and NO devices such as vacuum regulators or actuators are mounted to the valve. An actuator with an integral leak detector would close the valve much quicker than waiting for a wall mounted or remote leak detector to close all valves in the system. In addition, the Model U covers the area where the packing leak would occur, thereby preventing any Chlorine from blowing directly onto a nearby operator.

 IF YOU HAVE A QUESTION THAT YOU WOULD LIKE ADDED TO THE FAQ's, send an email to mail@robo-control.com.  WE WILL ADD IT TO THIS LIST!