Control valve manual operation

Manual operation can be utilized when there is no power to the actuator or during initial actuator setup and calibration. Manual operation is also possible when it is necessary to test the valves after repairs have been made or for sprinkler maintenance checks. Mounting and operating instructions samson ag samson. Process systems has a full range of manual pneumatic control valves used for actuating cylinders, actuators and other control valves. Smart positioner, air filter regulator, topwork manual hand wheel, stainless steel.

Water conditioning control system for autotrol 255 series. Ocv valves can be found in some capacity in nearly every country throughout the world. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. Orbit sprinkler valves are designed for automated irrigation systems and are controlled by a computerized timer box. View and download autotrol logix 740 operation manual online. How to manually test an orbit sprinkler valve home. Troubleshooting irrigation sprinkler valves youtube. From water supply systems in the united states and canada, to fire protection systems in asia and oil refineries in. The manual operating device is completely independent of the motor drive and can be operated at. Operating instructions type 8694 positioner top control.

Discover how control valves are used to maintain operating conditions such as flow, pressure, temperature, and liquid level. Chapter 5 is a comprehensive guide to selecting the best control valve for an. Offline and benchtesting procedures can be infrequent, inadequate and costly. A valve which controls the flow rate or flow direction in a fluid system. How to identify and troubleshoot control valve problems. One simple thing you can do to extend the life of your. This video shows the details of how a typical irrigation sprinkler control valve works, in an effort to help with investigation and troubleshooting of common home irrigation system problems. A mechanical manual override device, using a rotary wheel, to stroke a valve or to limit its travel. Manual operation is also possible when it is necessary to test the valves after. Chapter 2 develops the vital topic of control valve performance. Chapter 4 describes digital valve controllers, analog positioners, boosters, and other control valve accessories. There are many ways for control valves to degrade process performance. Video support library manually operating your rain bird valve.

View and download autotrol 255460i installation, operation and maintenance manual online. Instructions on how to manually operate your rain bird automatic irrigation valve by turning the solenoid. This video will teach you the components and operation of an hunter irrigation valve. In manual operating status the valve can be opened and closed manually via the keys.

Ocv, part of the mat holding group, is a company that is a global leader in the control valve industry. A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. This enables the direct control of flow rate and the consequential control of process quantities. Operation and function of control valves 0299 2 that valve drives me crazywhat is happening inside. Autotrol 255460i installation, operation and maintenance. Control autotrol 255 and autotrol performa series valves 268, 268fa. Testing the valves inplace, during normal operation, can reduce rebuild costs, improve process operation, and focus maintenance efforts. How does a manual handwheel work on a control valve.