Butterfly Valve Diagram

A typical butterfly valve has the disc positioned in the center of the connected pipe and a stem that is connected to an actuator or handle on the outside of the valve.

Butterfly valve diagram. Unlike a ball valve the disc is always present. The animation shows an example of how a butterfly valve works. When the actuator or handle rotates the stem back 90 degrees. Butterfly valve has four main components namely.

Normal operations will resume thursday december 26th. Also view our online catalog for all our keystone valves products. The stem is also sealed by the use of an o ring. Dultmeier sales will be closed tuesday december 24th at 12pm and all day wednesday december 25th.

As flow rate is effectively controlled it has less cavitation noise corrosion or vibration relatively. Butterfly valves are a quick open type. A 900 rotation of the handle can completely close or open the valve. Butterfly valves are generally favored because they cost less than other valve designs and are lighter weight so they need less support.

Browse victaulic butterfly valves products for pipes fire protection. Avaliable in various materials for different pipe sizes maxium pressure levels. High performance valves like this usually have a body that would usually fit in between two pipes. A butterfly valve is used to control the flow of a certain object.

In the closed position the disc is perpendicular to the flow as shown in figure 2 and is sealed by the valve seat. Normally they are used in systems where positive shut off is not required. Rotating the actuator turns the disc either parallel or perpendicular to the flow. The body seat operator or valve handle and disk.

The disc is positioned in the center of the pipe. Both the mechanism and structure of this valve is similar to that of a ball valve. Dultmeier sales will be closed thursday november 22nd and friday november 23rd in observance of thanksgiving. Pid symbols for following types of valves gate valve ball valve plug valve butterfly valve needle valve 3 way valve globe valve check valve etc.

A rod passes through the disc to an actuator on the outside of the valve. Installation operation and maintenance manual double offset butterfly valve 3 stem seal replacement refer to standard braymccannalok parts diagram for part identification 1 if required remove handle assembly remove socket head cap screws 25 and lock washers 24 remove mounting bracket 21 for actuated valves unbolt mounting. By illustrating the way in which the medium flows through the body and how it is shut off it demonstrates why butterfly valves are. A butterfly valve is a quarter turn rotary motion valve that is used to stop regulate and start the flow.

Keystone valves parts diagrams from dultmeier sales. It has a spherical disk with a hole and has a.