Repair and maintenance
Replacing a part of an existing manual valve changes it into an electric type easily.
Because electric-operated valves can close the valve automatically, safely, and securely on command from a remote control room, they are increasingly used as emergency shutoff valves in oil plant facilities in recent years.
Nippon Gear responsibly supports customers in the steps from selection to installation of an appropriate actuator for electric-operated valves, which are important in changing manual valves into the electric type.
Selection of electric actuators
We will ask for the following information in advance:
Information on an existing valve
1. Manufacturer, catalog number, and manufacturing number of the valve2. Type, size, and stroke of the valve3. Distinction between interior thread and exterior thread4. Valve stem, diameter, pitch, lead, and twist direction5. Desired switching time6. Type and pressure of fluid7. Power source and voltage cycle8. Highest ambient and fluid temperatures9. Measurable mounting dimensions10. Desired operation methodSelect an actuator based on this information.
Confirmation of external cable laying method
Confirmation of internal wire connection
Type of electric actuator
Basic type actuator
Air-driven type actuator
An example of a change into an electric type
We can cope with different shaped valves. Please contact us for details.