Butterfly Valve Pn16

Durable PN16 Butterfly Valve Manufacturers, Suppliers and Factory In Stock
1.Actuation Method of PN16 Butterfly Valve

PN16 Butterfly Valve can be operated manually by handles and gears or automatically by electric, pneumatic or hydraulic actuators. These devices allow precise rotation of the disc to positions ranging from fully open to fully closed. A brief understanding of the different types of actuation methods are below.

2.Manual Actuation of PN16 Butterfly Valve

Manual actuated PN16 Butterfly Valve is inexpensive and easy to operate. The two common methods are a discussed below:
1）Hand Lever: Is common for small PN16 Butterfly Valve and is capable of being locked into a position of open, partially open, or closed. An example can be seen in Figure.
2）Gear: These are designed for slightly larger PN16 Butterfly Valve and utilize a gearbox to increase torque at the expense of decreased speed of opening/closing. Gear operated valves are also self-locking (cannot be back driven) and can be equipped with position indicators. An example can be seen in Figure.

Power operated actuators of PN16 Butterfly Valve is a reliable method of controlling valves from a remote location. These actuators also make rapid operation of larger valves possible. Actuators can be designed to fail-open (stay open in case of actuator failure) fail-close (stay closed in case of actuator failure) and often come with a manual actuation method in case of failure. The three types of automatic actuators are listed below, but more a more thorough understanding read our actuator article.
1）Electric: Use an electric motor to turn the valve stem.
2）Pneumatic: Requires compressed air to move a piston or diaphragm to open/close the valve.
3）Hydraulic: Requires a hydraulic pressure to move a piston or diaphragm to open/close the valve.

3.Application of Throttle Butterfly Valves

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